10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

FORM 10-Q

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended   June 30, 2013

OR

[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______ to  ______

Commission file number   1-11353

LABORATORY CORPORATION OF

AMERICA HOLDINGS

(Exact name of registrant as specified in its charter)

Delaware	13-3757370
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

358 South Main Street,
Burlington, North Carolina	27215
(Address of principal executive offices)	(Zip Code)

(Registrant's telephone number, including area code) 336-229-1127

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes [X] No [  ]

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (paragraph 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes [X] No [  ]

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer [X]	Accelerated Filer [  ]
Non-accelerated filer [  ] (Do not check if a smaller reporting company)	Smaller reporting company [  ]

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes [  ] No [X].

The number of shares outstanding of the issuer's common stock is 90.1 million shares, net of treasury stock as of July 26, 2013.

INDEX

PART I. FINANCIAL INFORMATION

Item 1.	Financial Statements:
	Condensed Consolidated Balance Sheets	2
	June 30, 2013 and December 31, 2012
	Condensed Consolidated Statements of Operations	3
	Three and six month periods ended June 30, 2013 and 2012
	Condensed Consolidated Statements of Comprehensive Earnings	4
	Three and six month periods ended June 30, 2013 and 2012
	Condensed Consolidated Statements of Changes in Shareholders’ Equity	5
	Six months ended June 30, 2013 and 2012
	Condensed Consolidated Statements of Cash Flows	6
	Six months ended June 30, 2013 and 2012
	Notes to Unaudited Condensed Consolidated Financial Statements	7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	28
Item 4.	Controls and Procedures	28

PART II. OTHER INFORMATION

Item 1.	Legal Proceedings	30
Item 1A.	Risk Factors	30
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	30
Item 6.	Exhibits	31

1

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in millions)

(unaudited)

	June 30, 2013			December 31, 2012
ASSETS
Current assets:
Cash and cash equivalents	$	111.3		$	466.8
Accounts receivable, net of allowance for doubtful accounts of $205.1 and $191.5 at June 30, 2013 and December 31, 2012, respectively	815.7			718.5
Supplies inventories	126.4			121.0
Prepaid expenses and other	75.3			74.6
Deferred income taxes	19.3			10.9
Total current assets	1,148.0			1,391.8
Property, plant and equipment, net	646.9			630.8
Goodwill, net	2,986.6			2,901.7
Intangible assets, net	1,606.3			1,667.7
Joint venture partnerships and equity method investments	87.5			78.1
Other assets, net	116.6			124.9
Total assets	$	6,591.9		$	6,795.0
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	253.4		$	236.9
Accrued expenses and other	281.8			311.6
Short-term borrowings and current portion of long-term debt	119.9			480.0
Total current liabilities	655.1			1,028.5
Long-term debt, less current portion	2,390.0			2,175.0
Deferred income taxes and other tax liabilities	559.1			546.0
Other liabilities	303.9			307.4
Total liabilities	3,908.1			4,056.9
Commitments and contingent liabilities
Noncontrolling interest	20.4			20.7
Shareholders’ equity:
Common stock, 90.5 and 93.5 shares outstanding at June 30, 2013 and December 31, 2012, respectively	11.0			11.3
Additional paid-in capital	—			—
Retained earnings	3,574.6			3,588.5
Less common stock held in treasury	(958.9		)	(951.8		)
Accumulated other comprehensive income	36.7			69.4
Total shareholders’ equity	2,663.4			2,717.4
Total liabilities and shareholders’ equity	$	6,591.9		$	6,795.0

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

2

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in millions, except per share data)

(unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Net sales	$	1,468.2		$	1,423.4		$	2,909.1		$	2,846.7
Cost of sales	890.9			843.9			1,759.6			1,691.1
Gross profit	577.3			579.5			1,149.5			1,155.6
Selling, general and administrative expenses	280.9			279.5			564.1			550.7
Amortization of intangibles and other assets	20.5			20.6			40.0			42.0
Restructuring and other special charges	6.6			3.4			14.1			(0.2		)
Operating income	269.3			276.0			531.3			563.1
Other income (expenses):
Interest expense	(23.1		)	(21.3		)	(47.6		)	(42.8		)
Equity method income, net	4.4			8.0			8.7			12.3
Investment income	0.2			0.2			0.4			0.4
Other, net	(0.8		)	(6.7		)	(1.4		)	(7.2		)
Earnings before income taxes	250.0			256.2			491.4			525.8
Provision for income taxes	97.7			102.4			191.4			210.0
Net earnings	152.3			153.8			300.0			315.8
Less: Net earnings attributable to the noncontrolling interest	(0.4		)	(0.5		)	(0.8		)	(0.9		)
Net earnings attributable to Laboratory Corporation of America Holdings	$	151.9		$	153.3		$	299.2		$	314.9
Basic earnings per common share	$	1.65		$	1.59		$	3.24		$	3.25
Diluted earnings per common share	$	1.62		$	1.56		$	3.18		$	3.19

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

3

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS

(in millions, except per share data)

(unaudited)

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
Net earnings	$	152.3		$	153.8		$	300.0		$	315.8
Foreign currency translation adjustments	(31.4		)	(17.3		)	(59.1		)	6.4
Net benefit plan adjustments	3.3			—			6.5			—
Other comprehensive earnings (loss) before tax	(28.1		)	(17.3		)	(52.6		)	6.4
Provision for income tax related to items of comprehensive earnings	11.0			6.8			19.9			(2.5		)
Other comprehensive earnings (loss), net of tax	(17.1		)	(10.5		)	(32.7		)	3.9
Comprehensive earnings	135.2			143.3			267.3			319.7
Less: Net earnings attributable to the noncontrolling interest	(0.4		)	(0.5		)	(0.8		)	(0.9		)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$	134.8		$	142.8		$	266.5		$	318.8

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

4

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN

SHAREHOLDERS’ EQUITY

(in millions)

(unaudited)

	Common Stock			Additional Paid-in Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income			Total Shareholders’ Equity
BALANCE AT DECEMBER 31, 2011	$	11.7		$	—		$	3,387.2		$	(940.9	)	$	45.5		$	2,503.5
Net earnings attributable to Laboratory Corporation of America Holdings	—			—			314.9			—			—			314.9
Other comprehensive earnings, net of tax	—			—			—			—			3.9			3.9
Issuance of common stock under employee stock plans	0.1			43.4			—			—			—			43.5
Surrender of restricted stock and performance share awards	—			—			—			(10.9		)	—			(10.9		)
Conversion of zero-coupon convertible debt	—			—			—			—			—			—
Stock compensation	—			23.7			—			—			—			23.7
Income tax benefit from stock options exercised	—			5.8			—			—			—			5.8
Purchase of common stock	(0.3		)	(72.9		)	(179.4		)	—			—			(252.6		)
BALANCE AT JUNE 30, 2012	$	11.5		$	—		$	3,522.7		$	(951.8	)	$	49.4		$	2,631.8
BALANCE AT DECEMBER 31, 2012	$	11.3		$	—		$	3,588.5		$	(951.8	)	$	69.4		$	2,717.4
Net earnings attributable to Laboratory Corporation of America Holdings	—			—			299.2			—			—			299.2
Other comprehensive earnings, net of tax	—			—			—			—			(32.7		)	(32.7		)
Issuance of common stock under employee stock plans	0.2			130.9			—			—			—			131.1
Surrender of restricted stock and performance share awards	—			—			—			(7.1		)	—			(7.1		)
Conversion of zero-coupon convertible debt	—			4.7			—			—			—			4.7
Stock compensation	—			22.1			—			—			—			22.1
Income tax benefit from stock options exercised	—			7.9			—			—			—			7.9
Purchase of common stock	(0.5		)	(165.6		)	(313.1		)	—			—			(479.2		)
BALANCE AT JUNE 30, 2013	$	11.0		$	—		$	3,574.6		$	(958.9	)	$	36.7		$	2,663.4

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

5

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in millions)

(unaudited)

	Six Months Ended June 30,
	2013			2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$	300.0		$	315.8
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	112.4			112.8
Stock compensation	22.1			23.7
Loss on sale of assets	0.7			6.4
Accrued interest on zero-coupon subordinated notes	1.2			1.3
Earnings in excess of distributions from equity method investments	(3.7		)	(3.3		)
Deferred income taxes	28.3			33.3
Change in assets and liabilities (net of effects of acquisitions):
Increase in accounts receivable (net)	(99.7		)	(35.0		)
Increase in inventories	(5.7		)	(3.3		)
(Increase) decrease in prepaid expenses and other	(0.9		)	11.5
Increase (decrease) in accounts payable	16.9			(23.3		)
Decrease in accrued expenses and other	(35.8		)	(56.5		)
Net cash provided by operating activities	335.8			383.4
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(90.5		)	(68.3		)
Proceeds from sale of assets	0.4			1.5
Deferred payments on acquisitions	(2.0		)	(2.7		)
Acquisition of licensing technology	—			(2.0		)
Investments in equity affiliates	(3.3		)	(4.9		)
Acquisition of businesses, net of cash acquired	(104.2		)	(25.2		)
Net cash used for investing activities	(199.6		)	(101.6		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facilities	255.0			85.0
Payments on revolving credit facilities	(30.0		)	(195.0		)
Payments on zero-coupon subordinated notes	(21.3		)	(2.5		)
Payments on long-term debt	(350.0		)	—
Noncontrolling interest distributions	(0.4		)	(0.7		)
Excess tax benefits from stock based compensation	7.9			5.7
Net proceeds from issuance of stock to employees	131.1			43.4
Purchase of common stock	(479.2		)	(252.6		)
Net cash used for financing activities	(486.9		)	(316.7		)
Effect of exchange rate changes on cash and cash equivalents	(4.8		)	—
Net decrease in cash and cash equivalents	(355.5		)	(34.9		)
Cash and cash equivalents at beginning of period	466.8			159.3
Cash and cash equivalents at end of period	$	111.3		$	124.4

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

6

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

1.   BASIS OF FINANCIAL STATEMENT PRESENTATION

The consolidated financial statements include the accounts of Laboratory Corporation of America Holdings (the “Company”) and its majority-owned subsidiaries for which it exercises control. Long-term investments in affiliated companies in which the Company exercises significant influence, but which it does not control, are accounted for using the equity method. Investments in which the Company does not exercise significant influence (generally, when the Company has an investment of less than 20.0% and no representation on the investee’s board of directors) are accounted for using the cost method. All significant inter-company transactions and accounts have been eliminated. The Company does not have any variable interest entities or special purpose entities whose financial results are not included in the condensed consolidated financial statements.

The financial statements of the Company’s foreign subsidiaries are measured using the local currency as the functional currency. Assets and liabilities are translated at exchange rates as of the balance sheet date. Revenues and expenses are translated at average monthly exchange rates prevailing during the period. Resulting translation adjustments are included in “Accumulated other comprehensive income.”

The accompanying condensed consolidated financial statements of the Company are unaudited. In the opinion of management, all adjustments necessary for a fair statement of results of operations, cash flows and financial position have been made. Except as otherwise disclosed, all such adjustments are of a normal recurring nature. Interim results are not necessarily indicative of results for a full year. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles.

The financial statements and notes are presented in accordance with the rules and regulations of the Securities and Exchange Commission and do not contain certain information included in the Company’s 2012 Annual Report on Form 10-K. Therefore, the interim statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report.

New Accounting Pronouncements:

In February 2013, the FASB issued an amendment to existing guidance regarding the reporting of amounts reclassified out of accumulated other comprehensive income. The amendment requires an entity to present information about reclassification adjustments from accumulated other comprehensive income in its annual financial statements in a single note or on the face of the financial statements. The amendment is effective prospectively for reporting periods beginning after December 15, 2012. See Note 7 for presentation of reclassification adjustments from accumulated other comprehensive income.

2.   EARNINGS PER SHARE

Basic earnings per share is computed by dividing net earnings attributable to Laboratory Corporation of America Holdings by the weighted average number of common shares outstanding. Diluted earnings per share is computed by dividing net earnings including the impact of dilutive adjustments by the weighted average number of common shares outstanding plus potentially dilutive shares, as if they had been issued at the earlier of the date of issuance or the beginning of the period presented. Potentially dilutive common shares result primarily from the Company’s outstanding stock options, restricted stock awards, restricted stock units, performance share awards, and shares issuable upon conversion of zero-coupon subordinated notes.

7

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

The following represents a reconciliation of basic earnings per share to diluted earnings per share:

	Three Months Ended June 30,										Six Months Ended June 30,
	2013					2012					2013					2012
	Income		Shares	Per Share Amount		Income		Shares	Per Share Amount		Income		Shares	Per Share Amount		Income		Shares	Per Share Amount
Basic earnings per share:
Net earnings	$	151.9	92.0	$	1.65	$	153.3	96.3	$	1.59	$	299.2	92.5	$	3.24	$	314.9	96.8	$	3.25
Dilutive effect of employee  stock options and awards	—		1.1			—		1.0			—		1.0			—		1.1
Effect of convertible debt	—		0.6			—		0.7			—		0.6			—		0.7
Diluted earnings per share:
Net earnings including impact of dilutive adjustments	$	151.9	93.7	$	1.62	$	153.3	98.0	$	1.56	$	299.2	94.1	$	3.18	$	314.9	98.6	$	3.19

The following table summarizes the potential common shares not included in the computation of diluted earnings per share because their impact would have been antidilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2013	2012	2013	2012
Stock options	0.3	2.2	0.5	1.8

3.   RESTRUCTURING AND OTHER SPECIAL CHARGES

During the first six months of 2013, the Company recorded net restructuring charges of $14.1. The charges were comprised of $10.1 in severance and other personnel costs along with $6.3 in costs associated with facility closures and general integration initiatives. These charges were offset by the reversal of previously established reserves of $0.6 in unused severance and $1.7 in unused facility-related costs.

During the first six months of 2012, the Company recorded a net credit of $0.2 in restructuring and other special charges. The Company reversed previously established reserves of $4.8 in unused severance and $2.9 in unused facility related costs. This net credit also includes charges of $6.2 related to severance and other personnel costs, and $1.3 primarily related to facility-related costs primarily related to ongoing integration activities for Clearstone Central Laboratories, Orchid Cellmark Inc. ("Orchid") and the Integrated Genetics Division (formerly Genzyme Genetics*) and costs associated with the previously announced termination of an executive vice president.

As part of the Clearstone integration, the Company also recorded a $6.9 loss on the disposal of one its European subsidiaries in Other, net under Other income (expenses) during the three months ended June 30, 2012.

* Genzyme Genetics and its logo are trademarks of Genzyme Corporation and used by Esoterix Genetic Laboratories, LLC, a wholly-owned subsidiary of LabCorp, under license. Esoterix Genetic Laboratories and LabCorp are operated independently from Genzyme Corporation.

8

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

4.   RESTRUCTURING RESERVES

The following represents the Company’s restructuring activities for the period indicated:

	Severance and Other Employee Costs			Lease and Other Facility Costs			Total
Balance as of December 31, 2012	$	1.4		$	26.2		$	27.6
Restructuring charges	10.1			6.3			16.4
Reduction of prior restructuring accruals	(0.6		)	(1.7		)	(2.3		)
Cash payments and other adjustments	(9.6		)	(4.7		)	(14.3		)
Balance as of June 30, 2013	$	1.3		$	26.1		$	27.4
Current							$	8.7
Non-current							18.7
							$	27.4

5.   GOODWILL AND INTANGIBLE ASSETS

The changes in the carrying amount of goodwill for the six month period ended June 30, 2013 and for the year ended December 31, 2012 are as follows:

	June 30, 2013			December 31, 2012
Balance as of January 1	$	2,901.7		$	2,681.8
Goodwill acquired during the period	85.6			224.5
Adjustments to goodwill	(0.7		)	(4.6		)
Balance at end of period	$	2,986.6		$	2,901.7

The components of identifiable intangible assets are as follows:

	June 30, 2013							December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships	$	1,314.1	$	(514.2	)	$	799.9	$	1,296.1	$	(483.3	)	$	812.8
Patents, licenses and technology	117.2		(81.4		)	35.8		117.2		(76.2		)	41.0
Non-compete agreements	38.8		(22.4		)	16.4		32.3		(19.6		)	12.7
Trade names	131.0		(78.2		)	52.8		131.3		(73.4		)	57.9
Canadian licenses	701.4		—			701.4		743.3		—			743.3
	$	2,302.5	$	(696.2	)	$	1,606.3	$	2,320.2	$	(652.5	)	$	1,667.7

Amortization of intangible assets for the three month periods endedJune 30, 2013 and 2012 was $20.5 and $20.6, respectively. Amortization expense for the net carrying amount of intangible assets is estimated to be $44.5 for the remainder of fiscal 2013, $80.7 in fiscal 2014, $77.2 in fiscal 2015, $71.9 in fiscal 2016, $64.5 in fiscal 2017 and $530.1 thereafter.

The Ontario operation had $701.4 and $743.3 of value assigned to the partnership’s indefinite lived Canadian licenses to conduct diagnostic testing services in the province as of June 30, 2013 and December 31, 2012, respectively.

9

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

6.   DEBT

Short-term borrowings and the current portion of long-term debt at June 30, 2013 and December 31, 2012 consisted of the following:

	June 30, 2013		December 31, 2012
Zero-coupon convertible subordinated notes	$	109.9	$	130.0
Revolving credit facility	10.0		—
Senior notes due 2013	—		350.0
Total short-term borrowings and current portion of long-term debt	$	119.9	$	480.0

Long-term debt at June 30, 2013 and December 31, 2012 consisted of the following:

	June 30, 2013		December 31, 2012
5 5/8% senior notes due 2015	$	250.0	$	250.0
3 1/8% senior notes due 2016	325.0		325.0
2 1/5% senior notes due 2017	500.0		500.0
4 5/8% senior notes due 2020	600.0		600.0
3 3/4% senior notes due 2022	500.0		500.0
Revolving credit facility	215.0		—
Total long-term debt	$	2,390.0	$	2,175.0

Senior Notes

On August 23, 2012, the Company issued $1,000.0 in new senior notes pursuant to the Company's effective shelf registration statement on Form S-3. The new senior notes consisted of $500.0 aggregate principal amount of 2.20% Senior Notes due 2017 and $500.0 aggregate principal amount of 3.75% Senior Notes due 2022. The net proceeds were used to repay $625.0 of the outstanding borrowings under the Company's Revolving Credit Facility (as defined below). The remaining proceeds were available for other general corporate purposes.

The Senior Notes due 2017 and Senior Notes due 2022 bear interest at the rate of 2.20% per annum and 3.75% per annum, respectively, payable semi-annually on February 23 and August 23 of each year, commencing February 23, 2013.

Zero-coupon Subordinated Notes

During the six months endedJune 30, 2013, the Company settled notices to convert $25.3 aggregate principal amount at maturity of its zero-coupon subordinated notes with a conversion value of $31.6. The total cash used for these settlements was $21.3 and the Company also issued 0.1 additional shares of common stock.

On March 11, 2013, the Company announced that for the period of March 12, 2013 to September 11, 2013, the zero-coupon subordinated notes will accrue contingent cash interest at a rate of no less than 0.125% of the average market price of a zero-coupon subordinated note for the five trading days ended March 6, 2013, in addition to the continued accrual of the original issue discount.

10

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

On July 1, 2013, the Company announced that its zero-coupon subordinated notes may be converted into cash and common stock at the conversion rate of 13.4108 per $1,000 principal amount at maturity of the notes, subject to the terms of the zero-coupon subordinated notes and the Indenture, dated as of October 24, 2006 between the Company and The Bank of New York Mellon, as trustee and conversion agent. In order to exercise the option to convert all or a portion of the zero-coupon subordinated notes, holders are required to validly surrender their zero-coupon subordinated notes at any time during the calendar quarter beginning July 1, 2013, through the close of business on the last business day of the calendar quarter, which is 5:00 p.m., New York City time, on Monday, September 30, 2013. If notices of conversion are received, the Company plans to settle the cash portion of the conversion obligation with cash on hand and/or borrowings under the revolving credit facility (as defined below).

Credit Facilities

On December 21, 2011, the Company entered into a Credit Agreement (the "Credit Agreement") providing for a five-year $1,000.0 senior unsecured revolving credit facility (the “Revolving Credit Facility”) with Bank of America, N.A., acting as Administrative Agent, Barclays Capital as Syndication Agent, and a group of financial institutions as lending parties. The balances outstanding on the Company's Revolving Credit Facility at June 30, 2013 and December 31, 2012 were $225.0 and $0.0, respectively. The Revolving Credit Facility bears interest at varying rates based upon a base rate or LIBOR plus (in each case) a percentage based on the Company's debt rating with Standard & Poor's and Moody's Ratings Services.

The Revolving Credit Facility is available for general corporate purposes, including working capital, capital expenditures, acquisitions, funding of share repurchases and other restricted payments permitted under the Credit Agreement. The Credit Agreement also contains limitations on aggregate subsidiary indebtedness and a debt covenant that requires that the Company maintain on the last day of any period of four consecutive fiscal quarters, in each case taken as one accounting period, a ratio of total debt to consolidated EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) of not more than 3.0 to 1.0.The Company was in compliance with all covenants in the Credit Agreement at June 30, 2013. As of June 30, 2013, the ratio of total debt to consolidated EBITDA was 1.95 to 1.0.

    As of June 30, 2013, the effective interest rate on the Revolving Credit Facility was 1.24%.

7. PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY

The Company is authorized to issue up to 265.0 shares of common stock, par value $0.10 per share. The Company’s treasury shares are recorded at aggregate cost. The Company is authorized to issue up to 30.0 shares of preferred stock, par value $0.10 per share. There were no preferred shares outstanding as of June 30, 2013.

The changes in common shares issued and held in treasury are summarized below:

	Issued		Held in Treasury		Outstanding
Common shares at December 31, 2012	115.8		(22.3	)	93.5
Common stock issued under employee stock plans	2.0		—		2.0
Common stock issued upon conversion of zero-coupon subordinated notes	0.1		—		0.1
Surrender of restricted stock and performance share awards	—		(0.1	)	(0.1	)
Retirement of common stock	(5.0	)	—		(5.0	)
Common shares at June 30, 2013	112.9		(22.4	)	90.5

11

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

Share Repurchase Program

As of December 31, 2012, the Company had outstanding authorization from the Board of Directors to purchase approximately $74.0 of Company common stock based on settled trades as of that date. On February 8, 2013, the Company announced the Board of Directors authorized the purchase of $1,000.0 of additional shares of the Company’s common stock. During the six months endedJune 30, 2013, the Company purchased 5.0 shares of its common stock at a total cost of $479.2. As of June 30, 2013, the Company had outstanding authorization from the Board of Directors to purchase $594.8 of Company common stock based on settled trades as of that date.

Accumulated Other Comprehensive Earnings

The components of accumulated other comprehensive earnings are as follows:

	Foreign Currency Translation Adjustments			Net Benefit Plan Adjustments			Accumulated Other Comprehensive Earnings
Balance at December 31, 2012	$	162.9		$	(93.5	)	$	69.4
Other comprehensive income before reclassifications	(59.1		)	—			(59.1		)
Amounts reclassified from accumulated other comprehensive income (a)	—			6.5			6.5
Tax effect of adjustments	22.4			(2.5		)	19.9
Balance at June 30, 2013	$	126.2		$	(89.5	)	$	36.7

(a) The amortization of prior service cost is included in the computation of net periodic benefit cost. Refer to Note 10 Pension and Postretirement Plans for additional information regarding the Company's net periodic benefit cost.

8. INCOME TAXES

The Company does not recognize a tax benefit, unless the Company concludes that it is more likely than not that the benefit will be sustained on audit by the taxing authority based solely on the technical merits of the associated tax position. If the recognition threshold is met, the Company recognizes a tax benefit measured at the largest amount of the tax benefit that the Company believes is greater than 50.0% likely to be realized.

The gross unrecognized income tax benefits were $37.8 and $36.4 at June 30, 2013 and December 31, 2012, respectively. It is anticipated that the amount of the unrecognized income tax benefits will change within the next twelve months; however, these changes are not expected to have a significant impact on the results of operations, cash flows or the financial position of the Company.

As of June 30, 2013 and December 31, 2012, $37.4 and $37.1, respectively, are the approximate amounts of unrecognized income tax benefits that, if recognized, would favorably affect the effective income tax rate in future periods.

The Company recognizes interest and penalties related to unrecognized income tax benefits in income tax expense. Accrued interest and penalties related to uncertain tax positions totaled $11.1 and $9.8 as of June 30, 2013 and December 31, 2012, respectively.

The valuation allowance provided as a reserve against certain deferred tax assets is $18.6 and $18.4 at June 30, 2013 and December 31, 2012, respectively.

The Company has substantially concluded all U.S. federal income tax matters for years through 2011. Substantially all material state and local, and foreign income tax matters have been concluded through 2007 and 2001, respectively.

The Internal Revenue Service concluded its examination of the Company's 2011 and 2010 federal income tax returns during the second quarter of 2013. The Company has various state income tax examinations ongoing throughout the year. In October 2011, Canada Revenue Agency initiated an examination of the Company's Canadian income tax returns for 2010 and 2009. Management believes adequate provisions have been recorded related to all open tax years.

12

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

9. COMMITMENTS AND CONTINGENCIES

The Company is involved from time to time in various claims and legal actions, including arbitrations, class actions, and other litigation (including those described in more detail below), arising in the ordinary course of business. Some of these actions involve claims that are substantial in amount. These matters include, but are not limited to, intellectual property disputes, professional liability, employee related matters, and inquiries, including subpoenas and other civil investigative demands, from governmental agencies and Medicare or Medicaid payers and managed care payers reviewing billing practices or requesting comment on allegations of billing irregularities that are brought to their attention through billing audits or third parties. The Company receives civil investigative demands or other inquiries from various governmental bodies in the ordinary course of its business. Such inquiries can relate to the Company or other healthcare providers. The Company works cooperatively to respond to appropriate requests for information.

The Company is also named from time to time in suits brought under the qui tam provisions of the False Claims Act and comparable state laws. These suits typically allege that the Company has made false statements and/or certifications in connection with claims for payment from federal or state health care programs. They may remain under seal (hence, unknown to the Company) for some time while the government decides whether to intervene on behalf of the qui tam plaintiff. Such claims are an inevitable part of doing business in the health care field today.

The Company believes that it is in compliance in all material respects with all statutes, regulations and other requirements applicable to its clinical laboratory operations. The clinical laboratory testing industry is, however, subject to extensive regulation, and the courts have not interpreted many of these statutes and regulations. There can be no assurance, therefore, that those applicable statutes and regulations will not be interpreted or applied by a prosecutorial, regulatory or judicial authority in a manner that would adversely affect the Company. Potential sanctions for violation of these statutes and regulations include significant fines and the loss of various licenses, certificates and authorizations.

Many of the claims and legal actions against the Company are at preliminary stages, and many of these cases seek an indeterminate amount of damages. The Company records an aggregate legal reserve, which is determined using actuarial calculations around historical loss rates and assessment of trends experienced in settlements and defense costs. In accordance with ASC 450 “Contingencies”, the Company establishes reserves for judicial, regulatory, and arbitration matters outside the aggregate legal reserve if and when those matters present loss contingencies that are both probable and estimable and would exceed the aggregate legal reserve. When loss contingencies are not both probable and estimable, the Company does not establish separate reserves.

The Company is unable to estimate a range of reasonably probable loss for cases described in more detail below in which damages either have not been specified or, in the Company's judgment, are unsupported and/or exaggerated and (i) the proceedings are in early stages; (ii) there is uncertainty as to the outcome of pending appeals or motions; (iii) there are significant factual issues to be resolved; and/or (iv) there are novel legal issues to be presented. For these cases, however, the Company does not believe, based on currently available information, that the outcomes of these proceedings will have a material adverse effect on the Company's financial condition, though the outcomes could be material to the Company's operating results for any particular period, depending, in part, upon the operating results for such period.

As previously reported, the Company reached a settlement in the previously disclosed lawsuit, California ex rel. HunterLaboratories, LLC et al. v. Quest Diagnostics Incorporated, et al. ("Hunter Labs Settlement Agreement"), to avoid the uncertainty and costs associated with prolonged litigation. Pursuant to the executed settlement agreement, the Company recorded a litigation settlement expense of $34.5 in the second quarter of 2011 (net of a previously recorded reserve of $15.0) and paid the settlement amount of $49.5 in the third quarter of 2011. The Company also agreed to certain reporting obligations regarding its pricing for a limited time period and, at the option of the Company in lieu of such reporting obligations, to provide Medi-Cal with a discount from Medi-Cal's otherwise applicable maximum reimbursement rate from November 1, 2011 through October 31, 2012. In June of 2012, the California legislature enacted Assembly Bill No. 1494, Section 9 of which directs the Department of Health Care Services ("DHCS") to establish new reimbursement rates for Medi-Cal clinical laboratory services that will be based on payments made to California clinical laboratories for similar services by other third-party payers. With stakeholder input, DHCS established data elements and a format for laboratories to report payment data from comparable third-party payers. After reviewing the submitted data, DHCS will propose new reimbursement rates and solicit stakeholder input before their implementation. The bill provides that until the new rates are set through this process, Medi-Cal payments for clinical laboratory services will be reduced (in addition to a 10% payment reduction imposed by statute in 2011) by “up to 10 percent” for tests with dates of service on or after July 1, 2012, with a cap on payments set at 80% of the lowest maximum allowance established under the federal Medicare

13

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

program. Under the terms of the Hunter Labs Settlement Agreement, the enactment of this new California legislation terminates the Company's reporting obligations (or obligation to provide a discount in lieu of reporting) under that agreement. Taken together, these changes are not expected to have a material impact on the Company's consolidated revenues or results of operations.

As previously reported, the Company responded to an October 2007 subpoena from the United States Department of Health & Human Services Office of Inspector General's regional office in New York. On August 17, 2011, the Southern District of New York unsealed a False Claims Act lawsuit, United States of America ex rel. NPT Associates v. Laboratory Corporation of America Holdings, which alleges that the Company offered UnitedHealthcare kickbacks in the form of discounts in return for Medicare business. The Plaintiff's third amended complaint further alleges that the Company's billing practices violated False Claims Acts in fourteen states and the District of Columbia. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. Neither the United States government nor any state government has intervened in the lawsuit. The Company will vigorously defend the lawsuit.

In addition, the Company has received three other subpoenas since 2007 related to Medicaid billing. In February 2009, the Company received a subpoena from the Commonwealth of Virginia Office of the Attorney General requesting documents related to its billing to Virginia Medicaid. In April of 2013, the Commonwealth of Virginia Office of the Attorney General closed its investigation. In October 2009, the Company received a subpoena from the State of Michigan Department of Attorney General seeking documents related to its billing to Michigan Medicaid. In June 2010, the Company received a subpoena from the State of Florida Office of the Attorney General requesting documents related to its billing to Florida Medicaid. The Company is cooperating with these requests.

On May 2, 2013 the Company was served with a False Claims Act lawsuit, State of Georgia ex rel. Hunter Laboratories, LLC and Chris Reidel v. Quest Diagnostics Incorporated, et al., filed in the State Court of Fulton County, Georgia. The lawsuit, filed by a competitor laboratory, alleges that the Company overcharged Georgia's Medicaid program. The case has been removed to the United States District Court for the Northern District of Georgia. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. The government filed a notice declining to intervene in the case. The Company will vigorously defend the lawsuit.

In October 2011, a putative stockholder of the Company made a letter demand through his counsel for inspection of documents related to policies and procedures concerning the Company's Board of Directors' oversight and monitoring of the Company's billing and claim submission process. The letter also seeks documents prepared for or by the Board regarding allegations from the California ex rel. Hunter Laboratories, LLC et al. v. Quest Diagnostics Incorporated, et al., lawsuit and documents reviewed and relied upon by the Board in connection with the settlement of that lawsuit. The Company is responding to the request pursuant to Delaware law.

On November 18, 2011, the Company received a letter from United States Senators Baucus and Grassley requesting information regarding the Company's relationships with its largest managed care customers. The letter requests information about the Company's contracts and financial data regarding its managed care customers. Company representatives met with Senate Finance Committee staff after receiving the request and subsequently produced documents in response. The Company continues to cooperate with the request for information.

On February 27, 2012, the Company was served with a False Claims Act lawsuit, United States ex rel. Margaret Brown v. Laboratory Corporation of America Holdings and Tri-State Clinical Laboratory Services, LLC, filed in the United States District Court for the Southern District of Ohio, Western Division. The lawsuit alleges that the defendants submitted false claims for payment for laboratory testing services performed as a result of financial relationships that violated the federal Stark and anti-kickback laws. The Company owned 50% of Tri-State Clinical Laboratory Services, LLC, which was dissolved in June of 2011. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. The United States government has not intervened in the lawsuit. The Company will vigorously defend the lawsuit.

On June 7, 2012, the Company was served with a putative class action lawsuit, Yvonne Jansky v. Laboratory Corporation of America, et al., filed in the Superior Court of the State of California, County of San Francisco. The lawsuit alleges that the defendants committed unlawful and unfair business practices, and violated various other state laws by changing screening codes to diagnostic codes on laboratory test orders, thereby resulting in customers being responsible for co-payments and other debts. The lawsuit seeks injunctive relief, actual and punitive damages, as well as recovery of attorney's fees, and legal expenses. The Company will vigorously defend the lawsuit.

14

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

On June 7, 2012, the Company was served with a putative class action lawsuit, Ann Baker Pepe v. Genzyme Corporation and Laboratory Corporation of America Holdings, filed in the United States District Court for the District of Massachusetts. The lawsuit alleges that the defendants failed to preserve DNA samples allegedly entrusted to the defendants and thereby breached a written agreement with plaintiff and violated state laws. The lawsuit seeks injunctive relief, actual, double and treble damages, as well as recovery of attorney's fees and legal expenses. The Company will vigorously defend the lawsuit.

On August 24, 2012, the Company was served with a putative class action lawsuit, Sandusky Wellness Center, LLC, et al. v. MEDTOX Scientific, Inc., et al., filed in the United States District Court for the District of Minnesota. The lawsuit alleges that on or about February 21, 2012, the defendants violated the federal Telephone Consumer Protection Act by sending unsolicited facsimiles to Plaintiff and more than 39 other recipients without the recipients' prior express invitation or permission. The lawsuit seeks actual damages or the sum of $0.0005 for each violation, whichever is greater, and injunctive relief. The Company will vigorously defend the lawsuit.

The Company is a defendant in two putative class actions related to overtime pay. On July 8, 2013, a putative class action, Christine Bohlander v. Laboratory Corporation of America, et al., was filed against the Company in the Superior Court of the State of California for the County of Solano, alleging on behalf of similarly situated phlebotomists that the Company failed to pay overtime, failed to provide meal and rest breaks, and committed other violations of the California Labor Code. The complaint seeks monetary damages, civil penalties, costs, injunctive relief, and attorney's fees. On July 8, 2013, a putative class action, Jemuel Andres, et al. v. Laboratory Corporation of America Holdings, was filed against the Company in the Superior Court of California for the County of Los Angeles, alleging on behalf of similarly situated couriers that the Company failed to pay overtime, failed to provide meal and rest breaks, and committed other violations of the California Labor Code. The complaint seeks monetary damages, civil penalties, costs, injunctive relief, and attorney's fees. The Company intends to vigorously defend both cases.

Under the Company's present insurance programs, coverage is obtained for catastrophic exposure as well as those risks required to be insured by law or contract. The Company is responsible for the uninsured portion of losses related primarily to general, professional and vehicle liability, certain medical costs and workers' compensation. The self-insured retentions are on a per occurrence basis without any aggregate annual limit. Provisions for losses expected under these programs are recorded based upon the Company's estimates of the aggregated liability of claims incurred. As of June 30, 2013, the Company had provided letters of credit aggregating approximately $38.0, primarily in connection with certain insurance programs. The Company's availability under its Revolving Credit Facility is reduced by the amount of these letters of credit.

10. PENSION AND POSTRETIREMENT PLANS

The Company’s defined contribution retirement plan (the “401K Plan”) covers substantially all employees. All employees eligible for the 401K Plan receive a minimum 3% non-elective contribution concurrent with each payroll period. The 401K Plan also permits discretionary contributions by the Company of 1% to 3% of pay for eligible employees based on years of service with the Company. The cost of this plan was $12.2 and $11.8 for the three months endedJune 30, 2013 and 2012, respectively, and $25.1 and $24.3 for the six months endedJune 30, 2013 and 2012, respectively.

The Company also maintains a frozen defined benefit retirement plan (the “Company Plan”), that as of December 31, 2009, covered substantially all employees. The benefits to be paid under the Company Plan are based on years of credited service through December 31, 2009 and ongoing interest credits. Effective January 1, 2010, the Company Plan was closed to new participants. The Company’s policy is to fund the Company Plan with at least the minimum amount required by applicable regulations.

The Company maintains a second unfunded, non-contributory, non-qualified defined benefit retirement plan (the “PEP”), that as of December 31, 2009, covered substantially all of its senior management group. The PEP supplements the Company Plan and was closed to new participants effective January 1, 2010.

The effect on operations for the Company Plan and the PEP is summarized as follows:

15

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Service cost for benefits earned	$	0.6		$	0.6		$	1.2		$	1.2
Interest cost on benefit obligation	3.7			3.7			7.4			7.4
Expected return on plan assets	(4.3		)	(4.2		)	(8.6		)	(8.6		)
Net amortization and deferral	3.0			2.9			6.0			6.0
Defined benefit plan costs	$	3.0		$	3.0		$	6.0		$	6.0

During the six months endedJune 30, 2013, the Company contributed $1.8 to its defined benefit retirement plan.

The Company assumed obligations under a subsidiary’s post-retirement medical plan. Coverage under this plan is restricted to a limited number of existing employees of the subsidiary. This plan is unfunded and the Company’s policy is to fund benefits as claims are incurred. The effect on operations of the post-retirement medical plan is shown in the following table:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Service cost for benefits earned	$	0.1	$	0.1	$	0.2	$	0.2
Interest cost on benefit obligation	0.7		0.6		1.3		1.2
Net amortization and deferral	0.3		—		0.5		—
Postretirement medical plan costs	$	1.1	$	0.7	$	2.0	$	1.4

11. FAIR VALUE MEASUREMENTS

The Company’s population of financial assets and liabilities subject to fair value measurements as of June 30, 2013 and December 31, 2012 is as follows:

			Fair Value Measurements as of
	Fair Value as of		June 30, 2013
			Using Fair Value Hierarchy
	June 30, 2013		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.4	$	—	$	20.4	$	—

			Fair Value Measurements as of
	Fair Value as of		December 31, 2012
			Using Fair Value Hierarchy
	December 31, 2012		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.7	$	—	$	20.7	$	—

The Company has a noncontrolling interest put related to its Ontario subsidiary. The contractual value of the remaining put, in excess of the current noncontrolling interest of $4.9, totals $15.5 at June 30, 2013 and has been classified as mezzanine equity in the Company’s condensed consolidated balance sheet. The noncontrolling interest put is valued at its contractually determined value, which approximates fair value.

16

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

The carrying amounts of cash and cash equivalents, accounts receivable, income taxes receivable, and accounts payable are considered to be representative of their respective fair values due to their short-term nature. The fair market value of the zero-coupon subordinated notes, based on market pricing, was approximately $167.7 and $179.1 as of June 30, 2013 and December 31, 2012, respectively. The fair market value of the senior notes, based on market pricing, was approximately $2,221.6 and $2,720.5 as of June 30, 2013 and December 31, 2012, respectively. The Company's note and debt instruments are considered level 2 instruments, as the fair market values of these instruments are determined using other observable inputs.

12. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

The Company addresses its exposure to market risks, principally the market risk associated with changes in interest rates, through a controlled program of risk management that includes, from time to time, the use of derivative financial instruments such as interest rate swap agreements (see Interest Rate Swap section below). Although the Company’s zero-coupon subordinated notes contain features that are considered to be embedded derivative instruments (see Embedded Derivative section below), the Company does not hold or issue derivative financial instruments for trading purposes. The Company does not believe that its exposure to market risk is material to the Company’s financial position or results of operations.

Embedded Derivatives Related to the Zero-Coupon Subordinated Notes

The Company’s zero-coupon subordinated notes contain the following two features that are considered to be embedded derivative instruments under authoritative guidance in connection with accounting for derivative instruments and hedging activities:

1) The Company will pay contingent cash interest on the zero-coupon subordinated notes after September 11, 2006, if the average market price of the notes equals 120% or more of the sum of the issue price, accrued original issue discount and contingent additional principal, if any, for a specified measurement period.

2) Holders may surrender zero-coupon subordinated notes for conversion during any period in which the rating assigned to the zero-coupon subordinated notes by Standard & Poor’s Ratings Services is BB- or lower.

The Company believes these embedded derivatives had no fair value at June 30, 2013 and December 31, 2012. These embedded derivatives also had no impact on the condensed consolidated statements of operations for the six months endedJune 30, 2013 and 2012.

13. SUPPLEMENTAL CASH FLOW INFORMATION

	Six Months Ended June 30,
	2013		2012
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	54.6	$	39.8
Income taxes, net of refunds	164.3		163.7
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	$	10.3	$	—

17

INDEX

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(dollars and shares in millions, except per share data)

14. BUSINESS ACQUISITIONS

During the six month period ended June 30, 2013, the Company acquired various laboratories and related assets for approximately $104.2 in cash (net of cash acquired). The purchase consideration for these acquisitions has been allocated to the estimated fair market value of the net assets acquired, including approximately $24.2 in identifiable intangible assets (primarily customer relationships and non-compete agreements) and a residual amount of goodwill of approximately $85.6. These acquisitions were made primarily to extend the Company's geographic reach in important market areas and/or enhance the Company's scientific differentiation and esoteric testing capabilities.

15. BUSINESS SEGMENT INFORMATION

The following table is a summary of segment information for the three and six months ended June 30, 2013 and 2012. Segment asset information is not presented because it is not used by the chief operating decision maker at the operating segment level. Operating earnings (loss) of each segment represents net revenues less directly identifiable expenses to arrive at operating income for the segment. General management and administrative corporate expenses are included in general corporate expenses below. The accounting policies of the segments are the same as those of the Company as set forth in Note 1 to the Consolidated Financial Statements contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2012 and Note 1 above to the interim consolidated financial statements.

Clinical diagnostics laboratory segment includes financial information related to the broad range of testing services that are reported primarily through the United States business operations. The other reportable segment includes the portion of the Company's non-United States clinical diagnostic laboratory operations which are reviewed separately by corporate management for the purposes of allocation of resources.

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
Net revenues:
Clinical diagnostics laboratory	$	1,381.6		$	1,339.6		$	2,735.6		$	2,680.1
Other	86.6			83.8			173.5			166.6
Total net revenues	$	1,468.2		$	1,423.4		$	2,909.1		$	2,846.7
Operating earnings (loss):
Clinical diagnostics laboratory	$	380.1		$	380.5		$	754.3		$	767.6
Other	23.2			25.8			47.7			51.8
General corporate expenses	(134.0		)	(130.3		)	(270.7		)	(256.3		)
Total operating income	269.3			276.0			531.3			563.1
Non-operating expenses, net	19.3			19.8			39.9			37.3
Earnings before income taxes	$	250.0		$	256.2		$	491.4		$	525.8
Provision for income taxes	97.7			102.4			191.4			210.0
Net earnings	152.3			153.8			300.0			315.8
Less income attributable to noncontrolling interests	(0.4		)	(0.5		)	(0.8		)	(0.9		)
Net income attributable to Laboratory Corporation of America Holdings	$	151.9		$	153.3		$	299.2		$	314.9

18

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FORWARD-LOOKING STATEMENTS

The Company has made in this report, and from time to time may otherwise make in its public filings, press releases and discussions by Company management, forward-looking statements concerning the Company’s operations, performance and financial condition, as well as its strategic objectives.  Some of these forward-looking statements can be identified by the use of forward-looking words such as “believes”, “expects”, “may”, “will”, “should”, “seeks”, “approximately”, “intends”, “plans”, “estimates”, or “anticipates” or the negative of those words or other comparable terminology. Such forward-looking statements are subject to various risks and uncertainties and the Company claims the protection afforded by the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Actual results could differ materially from those currently anticipated due to a number of factors in addition to those discussed elsewhere herein and in the Company’s other public filings, press releases and discussions with Company management, including:

1. changes in federal, state, local and third party payer regulations or policies or other future reforms in the health care system (or in the interpretation of current regulations), new insurance or payment systems, including state or regional insurance cooperatives (Health Insurance Exchanges), new public insurance programs or a single-payer system, affecting governmental and third-party coverage or reimbursement for clinical laboratory testing;

2. adverse results from investigations, audits, regulatory examinations, information requests, and other inquiries by the government, which may include significant monetary damages, fines, penalties, assessments, refunds, repayments, and/or exclusion from the Medicare and Medicaid programs;

3. loss or suspension of a license or imposition of a fine or penalties under, or future changes in, or interpretations of, the law or regulations of the Clinical Laboratory Improvement Act of 1967, and the Clinical Laboratory Improvement Amendments of 1988, or those of Medicare, Medicaid, the False Claims Act or other federal, state or local agencies;

4. failure to comply with the Federal Occupational Safety and Health Administration requirements and the Needlestick Safety and Prevention Act, which may result in penalties and loss of licensure;

5. failure to comply with HIPAA, including changes to federal and state privacy and security obligations and changes to HIPAA, including those changes included within HITECH and any subsequent amendments, which could result in increased costs, denial of claims and/or significant penalties;

6. failure to maintain the security of business information or systems or protect against cyber security attacks could damage the Company's reputation, cause it to incur substantial additional costs and to become subject to litigation;

7. failure of the Company, third party payers or physicians to comply with the ICD-10-CM Code Set by the compliance date of October 1, 2014, could negatively impact the Company's reimbursement, cash collections, DSO and profitability;

8. increased competition, including competition from companies that do not comply with existing laws or regulations or otherwise disregard compliance standards in the industry;

9. increased price competition, competitive bidding for laboratory tests and/or changes or reductions to fee schedules;

10. changes in payer mix, including an increase in capitated reimbursement mechanisms or the impact of a shift to consumer driven health plans and adverse changes in payer reimbursement or payer coverage policies related to specific testing procedures or categories of testing;

11. failure to obtain and retain new customers or a reduction in tests ordered or specimens submitted by existing customers;

12. failure to retain or attract managed care business as a result of changes in business models, including new risk based or network approaches, or other changes in strategy or business models by managed care companies;

13. failure to effectively integrate and/or manage newly acquired businesses and the cost related to such integrations;

14. adverse results in litigation matters;

15. inability to attract and retain experienced and qualified personnel;

16. business interruption, increased costs, and other adverse effects on the Company's operations due to the unionization of employees, union strikes, work stoppages, or general labor unrest;

17. failure to maintain the Company's days sales outstanding and/or bad debt expense levels;

18. decrease in the Company's credit ratings by Standard & Poor's and/or Moody's;

19

19. discontinuation or recalls of existing testing products;

20. failure to develop or acquire licenses for new or improved technologies, or if customers use new technologies to perform their own tests;

21. inability to commercialize newly licensed tests or technologies or to obtain appropriate coverage or reimbursement for such tests, which could result in impairment in the value of certain capitalized licensing costs;

22. failure to identify and successfully close and integrate strategic acquisition targets;

23. changes in government regulations or policies, including regulations and policies of the Food and Drug Administration, affecting the approval, availability of, and the selling and marketing of diagnostic tests;

24. inability to obtain and maintain adequate patent and other proprietary rights for protection of the Company's products and services and successfully enforce the Company's proprietary rights;

25. the scope, validity and enforceability of patents and other proprietary rights held by third parties which might have an impact on the Company's ability to develop, perform, or market the Company's tests or operate its business;

26. failure in the Company's information technology systems resulting in an increase in testing turnaround time or billing processes or the failure to meet future regulatory or customer information technology, data security and connectivity requirements;

27. failure of the Company's financial information systems resulting in failure to meet required financial reporting deadlines;

28. failure of the Company's disaster recovery plans to provide adequate protection against the interruption of business and/or to permit the recovery of business operations;

29. business interruption or other impact on the business due to adverse weather (including hurricanes), fires and/or other natural disasters, terrorism or other criminal acts, and/or widespread outbreak of influenza or other pandemic illness;

30. liabilities that result from the inability to comply with corporate governance requirements;

31. significant deterioration in the economy or financial markets which could negatively impact the Company's testing volumes, cash collections and the availability of credit for general liquidity or other financing needs;

32. changes in reimbursement by foreign governments and foreign currency fluctuations; and

33. expenses and risks associated with international operations, including but not limited to compliance with the Foreign Corrupt Practices Act, the U.K. Bribery Act, as well as laws and regulations that differ from those of the United States, and economic, political, legal and other operational risks associated with foreign markets.

20

GENERAL (dollars in millions, except per share data)

During the second quarter of 2013, the Company grew its revenue in a challenging economic environment. Net sales for the three months ended June 30, 2013 increased 3.1% in comparison to the same period in 2012, on a 5.0% increase in volume and a 1.8% decrease in revenue per requisition. The Company's acquisition of MedTox Scientific, Inc. ("MedTox") on July 31, 2012, increased revenue and volume by 2.6% and 3.6%, respectively, in the second quarter of 2013 compared to 2012.

Changes in governmental regulations have had, and are expected to continue to have, a significant impact on the Company's operations in 2013. The Affordable Care Act Baseline for the 2013 update to the Clinical Lab Fee Schedule was negative 0.95% and the Middle Class Tax Relief and Job Creation Act rebaselined the fee schedule an additional 2% lower. These fee schedule reductions became effective on January 1, 2013.  As a result of mandatory sequestration, there was an additional 2% reduction to the Clinical Lab Fee Schedule and a separate 2% reduction to the Physician Fee Schedule effective April 1, 2013. In addition, the Company has experienced delays in the pricing and implementation of new molecular pathology codes among various payers, including Medicaid, Medicare and commercial carriers.  While some delays were expected, several non-commercial payers have still not priced key molecular codes and a number of these payers, mostly government entities, have indicated that they will no longer pay for tests that they have previously covered.  Further, several payers are requiring additional information to process claims or have implemented prior authorization policies. Many commercial payers are only now becoming aware of the impact of their claim edits which impede access to services which previously have been covered and reimbursed. These delays had an impact on 2013 revenue, revenue per requisition, margins and cash flows and until resolved could have continuing impact.

The Company manages its operations through two reportable segments: the Clinical diagnostics laboratory segment, which includes routine testing as well as genomic and esoteric testing, and the Other segment which consists of the portion of the Company's non-United States clinical diagnostic laboratory operations which are reviewed separately by corporate management for the purposes of allocation of resources. As mentioned above, the Clinical diagnostics laboratory segment results of operations have been negatively impacted by the reductions in payments for laboratory services, primarily from Federal and State government entities. Operating results for the Other segment have declined slightly from the prior year primarily due to the expansion of that segment through acquisitions not fully integrated, as well as the impact of the stronger United States dollar in 2013 as compared with 2012.

RESULTS OF OPERATIONS (amounts in millions except Revenue Per Requisition info)

Three months ended June 30, 2013 compared with three months ended June 30, 2012

Net Sales

	Three Months Ended June 30,
	2013		2012		Change
Net sales
Clinical diagnostics laboratory:
Routine Testing	$	873.1	$	814.4	7.2	%
Genomic and Esoteric Testing	508.5		525.2		(3.2	)%
Other	86.6		83.8		3.3	%
Total	$	1,468.2	$	1,423.4	3.1	%

21

	Three Months Ended June 30,
	2013	2012	Change
Volume (Number of Requisitions)
Clinical diagnostics laboratory:
Routine Testing	22.4	21.2	5.9	%
Genomic and Esoteric Testing	7.9	7.6	3.5	%
Other	2.6	2.6	2.4	%
Total	32.9	31.4	5.0	%

	Three Months Ended June 30,
	2013		2012		Change
Revenue Per Requisition
Clinical diagnostics laboratory:
Routine Testing	$	38.88	$	38.42	1.2	%
Genomic and Esoteric Testing	64.66		69.10		(6.4	)%
Other	32.99		32.70		0.9	%
Total	$	44.57	$	45.39	(1.8	)%

The increase in net sales for the three months ended June 30, 2013 as compared with the corresponding 2012 period was driven primarily by the MedTox acquisition along with growth in the Company's drugs of abuse testing and sales in the Other segment. The decline in revenue per requisition in genomic and esoteric testing is a result of a lower mix of genetic and histology testing during the quarter. Histology revenue per requisition was also impacted by payment reductions on the Medicare physician fee schedule, as well as the expiration of the Company's ability to directly bill Medicare for the technical component of pathology services furnished to hospitals for in-patient Medicare beneficiaries. Revenue per requisition also decreased due to delays in payments and denials of coverage for existing tests by some payers after implementation of recently-adopted molecular pathology codes and the implementation of sequestration on April 1, 2013. Net sales of the Other segment were $86.6 for the three months ended June 30, 2013 compared to $83.8 in the corresponding 2012 period, an increase of $2.8, or 3.3%. Net sales in this segment were negatively impacted by a stronger U.S. dollar in 2013 as compared with 2012. In local currency, net sales of the Other segment increased by 4.7%.

Cost of Sales	Three Months Ended June 30,
	2013			2012			Change
Cost of sales	$	890.9		$	843.9		5.6	%
Cost of sales as a % of sales	60.7		%	59.3		%

Cost of sales (primarily laboratory and distribution costs) increased 5.6% in the 2013 period as compared with the 2012 period primarily due to lower margins resulting from the Medicare fee cuts, the impact of delays and denials of coverage of molecular pathology codes and sequestration in 2013, as mentioned above. As a percentage of net sales, cost of sales increased to 60.7% in 2013 from 59.3% in 2012. Cost of sales of the Other segment contributed $1.5 or 0.2% of the increase in cost of sales for the three months ended June 30, 2013. These increases were due to continued growth in the business.

Selling, General and Administrative Expenses

	Three Months Ended June 30,
	2013			2012			Change
Selling, general and administrative expenses	$	280.9		$	279.5		0.5	%
Selling, general and administrative expenses as a % of sales	19.1		%	19.6		%

Selling, general and administrative expenses as a percentage of net sales decreased to 19.1% in the second quarter of 2013 as compared to 19.6% in 2012. Expense management and efficiencies from acquired operations that are being integrated into the Company's cost structure contributed to the decrease in selling, general and administrative expenses as a percentage of net sales.

22

Additionally, bad debt expense decreased to 4.3% of net sales in the second quarter of 2013 as compared with 4.4% in 2012 primarily due to increased collections resulting from process improvement programs within the Company's billing department and field operations. Selling, general and administrative expenses of the Other segment increased $3.4 or 1.2% over the prior year total for the three months ended June 30, 2013. These increases were due to continued growth in the business.

Amortization of Intangibles and Other Assets

	Three Months Ended June 30,
	2013		2012		Change
Amortization of intangibles and other assets	$	20.5	$	20.6	(0.5	)%

During the three months ended June 30, 2013, amortization expense remained consistent as compared to the three months ended June 30, 2012.

Restructuring and Other Special Charges

	Three Months Ended June 30,
	2013		2012		Change
Restructuring and other special charges	$	6.6	$	3.4	94.1	%

During the second quarter of 2013, the Company recorded net restructuring charges of $6.6, primarily within the Clinical diagnostics laboratory segment. These charges were comprised of $2.5 in severance and other personnel costs along with $4.5 in costs associated with facility closures and general integration initiatives. These charges were partially offset by the reversal of previously established reserves of $0.4 in unused facility related costs.

From time to time, the Company implements cost savings initiatives. These initiatives result from the integration of recently acquired businesses and from reducing the number of facilities and employees in an effort to balance the Company's cost of operations with current test volume trends while maintaining the high quality of its services that the marketplace demands. It is difficult to determine the nature, timing and extent of these activities until adequate planning has been completed and reviewed. The continuing economic downturn being experienced in the United States and globally has had an impact on the Company's volume. The Company believes that any restructuring costs which may be incurred in 2013 will be more than offset by subsequent savings realized from these potential actions and that any related restructuring charges will not have a material impact on the Company's operations or liquidity.

Interest Expense	Three Months Ended June 30,
	2013		2012		Change
Interest expense	$	23.1	$	21.3	8.5	%

The increase in interest expense for 2013 as compared with 2012 is primarily due to the issuance of $1,000.0 of senior notes in August 2012. The net proceeds from the senior notes were used to repay outstanding amounts on the Company's Revolving Credit Facility. The senior notes have an effective weighted-average interest rate of 3.0%, compared to the effective rate of 1.22% on the Company's Revolving Credit Facility outstanding during the second quarter of 2012.

Equity Method Income

	Three Months Ended June 30,
	2013		2012		Change
Equity method income	$	4.4	$	8.0	(45.0	)%

23

Equity method income represents the Company's ownership share in joint venture partnerships along with equity investments in other companies in the healthcare industry. In conjunction with the liquidation of one of its joint ventures, the Company recorded a $2.9 increase in equity method income during the second quarter of 2012.

Income Tax Expense	Three Months Ended June 30,
	2013			2012			Change
Income tax expense	$	97.7		$	102.4		(4.6	)%
Income tax expense as a % of income before tax	39.1		%	40.0		%

The decrease in the effective tax rate for 2013 compared with 2012 is the result of a lower effective state income tax rate.

Six months ended June 30, 2013 compared with six months ended June 30, 2012

Net Sales

	Six Months Ended June 30,
	2013		2012		Change
Net sales
Clinical diagnostics laboratory:
Routine Testing	$	1,699.9	$	1,610.6	5.5	%
Genomic and Esoteric Testing	1,035.7		1,069.5		(3.2	)%
Other	173.5		166.6		4.2	%
Total	$	2,909.1	$	2,846.7	2.2	%

	Number of Requisitions Six Months Ended June 30,
	2013	2012	Change
Volume
Clinical diagnostics laboratory:
Routine Testing	44.5	42.8	3.8	%
Genomic and Esoteric Testing	15.4	15.2	1.8	%
Other	5.0	5.0	0.3	%
Total	64.9	63.0	3.0	%

	Six Months Ended June 30,
	2013		2012		Change
Revenue Per Requisition
Clinical diagnostics laboratory:
Routine Testing	$	38.22	$	37.58	1.7	%
Genomic and Esoteric Testing	67.07		70.54		(4.9	)%
Other	34.70		33.40		3.9	%
Total	$	44.81	$	45.18	(0.8	)%

The increase in net sales for the six months ended June 30, 2013 as compared with the corresponding 2012 period was driven primarily by the MedTox acquisition along with growth in the Company's drugs of abuse testing and sales in the Other segment. The decline in revenue per requisition in genomic and esoteric testing is a result of a lower mix of genetic and histology testing during the quarter. Histology revenue per requisition was also impacted by payment reductions on the Medicare physician fee schedule, as well as the expiration of the Company's ability to directly bill Medicare for the technical component of pathology services furnished to hospitals for in-patient Medicare beneficiaries. Revenue per requisition decreased due to delays in payments

24

and denials of coverage for existing tests by some payers after implementation of recently-adopted molecular pathology codes and the implementation of sequestration on April 1, 2013. Net sales of the Other segment were $173.5 for the six months ended June 30, 2013 compared to $166.6 in the corresponding 2012 period, an increase of $6.9, or 4.1%. Net sales in this segment were negatively impacted by a stronger U.S. dollar in 2013 as compared with 2012. In local currency, net sales of the Other segment increased by 5.2%.

Cost of Sales	Six Months Ended June 30,
	2013			2012			Change
Cost of sales	$	1,759.6		$	1,691.1		4.1	%
Cost of sales as a % of sales	60.5		%	59.4		%

Cost of sales (primarily laboratory and distribution costs) increased 4.1% in the 2013 period as compared with the 2012 period primarily due to lower margins resulting from the Medicare fee reductions, the impact of delays and denials of coverage of molecular pathology codes and sequestration in 2013, as mentioned above. As a percentage of net sales, cost of sales increased to 60.5% in 2013 from 59.4% in 2012. Cost of sales of the Other segment contributed $3.1 or 0.2% of the increase in cost of sales for the six months ended June 30, 2013. These increases were due to continued growth in the business.

Selling, General and Administrative Expenses

	Six Months Ended June 30,
	2013			2012			Change
Selling, general and administrative expenses	$	564.1		$	550.7		2.4	%
Selling, general and administrative expenses as a % of sales	19.4		%	19.3		%

Selling, general and administrative expenses as a percentage of net sales increased to 19.4% in the six month period of 2013 compared to 19.3% in 2012. The increase in selling, general and administrative expenses as a percentage of net sales is primarily due to increases in personnel costs relating to recent acquisitions that have not yet been fully integrated. Additionally, bad debt expense decreased to 4.3% of net sales in 2013 as compared with 4.4% in 2012 primarily due to increased collections resulting from process improvement programs within the Company's billing department and field operations. Selling, general and administrative expenses of the Other segment increased $5.3 or 0.9% over the prior year total for the six months ended June 30, 2013. These increases were due to continued growth in the business.

Amortization of Intangibles and Other Assets

	Six Months Ended June 30,
	2013		2012		Change
Amortization of intangibles and other assets	$	40.0	$	42.0	(4.8	)%

The decrease in amortization of intangibles and other assets primarily reflects certain intangible assets that became fully amortized during 2013, partially offset by an increase from certain acquisitions that closed during the first six months of 2013 and during the year 2012.

Restructuring and Other Special Charges

	Six Months Ended June 30,
	2013		2012			Change
Restructuring and other special charges	$	14.1	$	(0.2	)	N/A

During the first six months of 2013, the Company recorded net restructuring charges of $12.0 within the Clinical diagnostics laboratory segment and $2.1 within the Other segment. The charges were comprised of $10.1 in severance and other personnel costs along with $6.3 in costs associated with facility closures and general integration initiatives. These charges were offset by the reversal of previously established reserves of $0.6 in unused severance and $1.7 in unused facility-related costs.

25

During the first six months of 2012, the Company recorded net credit of $0.2 in restructuring and other special charges within the Clinical diagnostics laboratory segment. The Company reversed previously established reserves of $4.8 in unused severance and $2.9 in unused facility related costs. This net credit also includes charges of $6.2 related to severance and other personnel costs, and $1.3 primarily related to facility-related costs primarily related to ongoing integration activities for Clearstone Central Laboratories, Orchid and the Integrated Genetics Division and costs associated with the previously announced termination of an executive vice president.

Interest Expense	Six Months Ended June 30,
	2013		2012		Change
Interest expense	$	47.6	$	42.8	11.2	%

The increase in interest expense for 2013 as compared with 2012 is primarily due to the issuance of $1,000.0 of senior notes in August 2012. The net proceeds from the senior notes were used to repay outstanding amounts on the Company's Revolving Credit Facility. The senior notes have an effective weighted-average interest rate of 3.0%, compared to the effective rate of 1.22% on the Company's Revolving Credit Facility outstanding during the second quarter of 2012.

Equity Method Income

	Six Months Ended June 30,
	2013		2012		Change
Equity method income	$	8.7	$	12.3	(29.3	)%

Equity method income represents the Company's ownership share in joint venture partnerships along with equity investments in other companies in the healthcare industry. In conjunction with the liquidation of one its joint ventures, the Company recorded a $2.9 million increase in equity method income during the second quarter of 2012.

Income Tax Expense	Six Months Ended June 30,
	2013			2012			Change
Income tax expense	$	191.4		$	210.0		(8.9	)%
Income tax expense as a % of income before tax	39.0		%	39.9		%

The decrease in the effective tax rate for 2013 compared with 2012 is the result of a lower effective state income tax rate.

LIQUIDITY AND CAPITAL RESOURCES (dollars and shares in millions)

The Company's strong cash-generating capability and financial condition typically have provided ready access to capital markets. The Company's principal source of liquidity is operating cash flow, supplemented by proceeds from debt offerings. This cash-generating capability is one of the Company's fundamental strengths and provides substantial financial flexibility in meeting operating, investing and financing needs. The Company's senior unsecured Revolving Credit Facility is further discussed in "Note 6 to Unaudited Condensed Consolidated Financial Statements."

On July 31, 2012, the Company completed its acquisition of MedTox for $236.4 in cash, excluding transaction fees. The acquisition was financed through borrowings from the Company’s Revolving Credit Facility and cash on hand.

On August 23, 2012, the Company issued $1,000.0 in new senior notes pursuant to the Company's effective shelf registration statement on Form S-3. The new senior notes consisted of $500.0 aggregate principal amount of 2.20% Senior Notes due 2017 and $500.0 aggregate principal amount of 3.75% Senior Notes due 2022. The net proceeds were used to repay $625.0 of the outstanding borrowings under the Company's Revolving Credit Facility. The remaining proceeds were available for other general corporate purposes.

In February, 2013, the Company repaid its 5 1/2% $350.0 Senior Notes due 2013 with cash on hand and $30.0 of borrowings on its Revolving Credit Facility.

26

The Company believes that its cash from operations, in combination with cash on hand and borrowing capacity, will be sufficient to satisfy its obligations in 2013 and beyond. The Company has discussed its intention to increase its ratio of total debt to consolidated EBITDA over time from 2.0 to 1.0 as of December 2012 to 2.5 to 1.0. As of June 30, 2013, the ratio of total debt to consolidated EBITDA was 1.95 to 1.0. The Company believes that it can achieve this through the use of its Revolving Credit Facility and its ready access to debt capital markets. In the event that the Company needs additional liquidity, it believes it can readily access the debt capital markets.

Operating Activities

During the six months ended June 30, 2013 and 2012, the Company's operations provided $335.8 and $383.4 of cash, respectively, reflecting the Company's solid business results. The decrease in cash provided from operations in 2013 as compared with the corresponding 2012 period is primarily attributable to the delays and denials of coverage for existing tests by some payers after implementation of recently-adopted molecular pathology codes. The Company continues to focus on efforts to increase cash collections from all payers and to generate on-going improvements to the claim submission processes.

Investing Activities

Capital expenditures were $90.5 and $68.3 for the six months ended June 30, 2013 and 2012, respectively. The Company expects capital expenditures of approximately $220.0 in 2013. The Company's projected capital expenditures are higher than historical levels due to near-term investments in facility consolidation and replacement of a major testing platform. The Company will continue to make important investments in its business, including information technology. Such expenditures are expected to be funded by cash flow from operations, as well as borrowings under the Company's revolving credit facility as needed.

Financing Activities

On December 21, 2011, the Company entered into a Credit Agreement (the "Credit Agreement") providing for a five-year $1,000.0 senior unsecured revolving credit facility (the “Revolving Credit Facility”) with Bank of America, N.A., acting as Administrative Agent, Barclays Capital as Syndication Agent, and a group of financial institutions as lending parties. The balances outstanding on the Company's Revolving Credit Facility at June 30, 2013 and December 31, 2012 were $225.0 and $0.0, respectively. The Revolving Credit Facility bears interest at varying rates based upon a base rate or LIBOR plus (in each case) a percentage based on the Company's debt rating with Standard & Poor's and Moody's Ratings Services.

The Revolving Credit Facility is available for general corporate purposes, including working capital, capital expenditures, acquisitions, funding of share repurchases and other restricted payments permitted under the Credit Agreement. The Credit Agreement also contains limitations on aggregate subsidiary indebtedness and a debt covenant that requires that the Company maintain on the last day of any period for four consecutive fiscal quarters, in each case taken as one accounting period, a ratio of total debt to consolidated EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) of not more than 3.0 to 1.0. The Company was in compliance with all covenants in the Credit Agreement at June 30, 2013. As of June 30, 2013, the ratio of total debt to consolidated EBITDA was 1.95 to 1.0.

In February, 2013, the Company repaid its 5 1/2% $350.0 Senior Notes due 2013 with cash on hand and $30.0 of borrowings on its Revolving Credit Facility. During the six months endedJune 30, 2013, the Company settled notices to convert $25.3 aggregate principal amount at maturity of its zero-coupon subordinated notes with a conversion value of $31.6. The total cash used for these settlements was $21.3.

As of June 30, 2013, the effective interest rate on the Revolving Credit Facility was 1.24%.

As of December 31, 2012, the Company had outstanding authorization from the Board of Directors to purchase $74.0 of Company common stock based on settled trades as of that date. On February 8, 2013, the Company announced the Board of Directors authorized the purchase of $1,000.0 of additional shares of the Company's common stock. During the six months ended June 30, 2013, the Company repurchased $479.2 of stock representing 5.0 shares. As of June 30, 2013, the Company had outstanding authorization from the Board of Directors to purchase $594.8 of Company common stock based on settled trades as of that date.

As of June 30, 2013, the Company provided letters of credit aggregating $38.0, primarily in connection with certain insurance programs. Letters of credit provided by the Company are secured by the Company's senior credit facilities and are renewed annually, around mid-year.

27

The Company had a $37.8 and $36.4 reserve for unrecognized income tax benefits, including interest and penalties as of June 30, 2013 and December 31, 2012, respectively. Substantially all of these tax reserves are classified in other long-term liabilities in the Company's Condensed Consolidated Balance Sheets at June 30, 2013 and December 31, 2012.

Zero-coupon Subordinated Notes

On March 11, 2013, the Company announced that for the period of March 12, 2013 to September 11, 2013, the zero-coupon subordinated notes will accrue contingent cash interest at a rate of no less than 0.125% of the average market price of a zero-coupon subordinated note for the five trading days ended March 6, 2013, in addition to the continued accrual of the original issue discount.

On July 1, 2013, the Company announced that its zero-coupon subordinated notes may be converted into cash and common stock at the conversion rate of 13.4108 per $1,000 principal amount at maturity of the notes, subject to the terms of the zero-coupon subordinated notes and the Indenture, dated as of October 24, 2006 between the Company and The Bank of New York Mellon, as trustee and conversion agent. In order to exercise the option to convert all or a portion of the zero-coupon subordinated notes, holders are required to validly surrender their zero-coupon subordinated notes at any time during the calendar quarter beginning July 1, 2013, through the close of business on the last business day of the calendar quarter, which is 5:00 p.m., New York City time, on Monday, September 30, 2013. If notices of conversion are received, the Company plans to settle the cash portion of the conversion obligation with cash on hand and/or borrowings under the Revolving Credit Facility.

Credit Ratings

The Company's debt ratings of Baa2 from Moody's and BBB from Standard & Poor's contribute to its ability to access capital markets.

ITEM 3. Quantitative and Qualitative Disclosures about Market Risk

The Company addresses its exposure to market risks, principally the market risk associated with changes in interest rates, through a controlled program of risk management that includes, from time to time, the use of derivative financial instruments such as interest rate swap agreements. Although, as set forth below, the Company's zero-coupon subordinated notes contain features that are considered to be embedded derivative instruments, the Company does not hold or issue derivative financial instruments for trading purposes. The Company does not believe that its exposure to market risk is material to the Company's financial position or results of operations.

The Company's zero-coupon subordinated notes contain the following two features that are considered to be embedded derivative instruments under authoritative guidance in connection with accounting for derivative instruments and hedging activities:

1) The Company will pay contingent cash interest on the zero-coupon subordinated notes after September 11, 2006, if the average market price of the notes equals 120% or more of the sum of the issue price, accrued original issue discount and contingent additional principal, if any, for a specified measurement period.

2) Holders may surrender zero-coupon subordinated notes for conversion during any period in which the rating assigned to the zero-coupon subordinated notes by Standard & Poor's Ratings Services is BB- or lower.

Borrowings under the Company's Revolving Credit Facility are subject to variable interest rates, unless fixed through interest rate swaps or other agreements.

The Company's Ontario, Canada consolidated joint venture operates in Canada and, accordingly, the earnings and cash flows generated from the Ontario operations are subject to foreign currency exchange risk.

The Company's wholly-owned subsidiary, Clearstone Central Laboratories, has operations in China, Hong Kong and Singapore, and, accordingly the earnings and cash flows generated from these operations are subject to foreign currency risk.

The Company's wholly-owned subsidiary, Orchid, has operations in the United Kingdom and, accordingly the earnings and cash flows generated from Orchid's United Kingdom operation are subject to foreign currency risk.

The Alberta, Canada joint venture partnership operates in Canada and remits the Company's share of partnership income in Canadian dollars. Accordingly, the cash flow received from this affiliate is subject to foreign currency exchange risk.

28

ITEM 4. Controls and Procedures

As of the end of the period covered by the Form 10-Q, the Company carried out, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Rules13-a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934). Based on the foregoing, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of June 30, 2013.

There were no changes in the Company’s internal control over financial reporting that occurred during the quarter ended June 30, 2013 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

29

LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

See Note 9 to the Company’s Unaudited Condensed Consolidated Financial Statements for the three and six months ended June 30, 2013, which is incorporated by reference.

Item 1A. Risk Factors

There have been no material changes in the risk factors that appear in Part I - Item 1A of the Company's Annual Report on Form 10-K for the year ended December 31, 2012.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds (Shares and dollars in millions, except per share data)

The following table sets forth information with respect to purchases of shares of the Company’s common stock based on settled trades made during the three months ended June 30, 2013, by or on behalf of the Company:

	Total Number of Shares Repurchased	Average Price Paid Per Share		Total Number of Shares Repurchased as Part of Publicly Announced Program	Maximum Dollar Value of Shares that May Yet Be Repurchased Under the Program
April 1 – April 30	0.1	$	91.02	0.1	$	947.4
May 1 – May 31	2.0	99.28		2.0	745.9
June 1 – June 30	1.6	98.26		1.6	594.8
	3.7	$	98.55	3.7

The Board of Directors has authorized the repurchase of specified amounts of the Company's common stock since 2007. As of December 31, 2012, the Company had outstanding authorization from the Board of Directors to purchase up to $74.0 of Company common stock based on settled trades as of that date. On February 8, 2013, the Company announced the Board of Directors authorized the purchase of up to $1,000.0 of additional shares of the Company's common stock. As of June 30, 2013, the Company had outstanding authorization from the Board of Directors to purchase $594.8 of Company common stock based on settled trades as of that date. The repurchase authorization has no expiration date.

30

Item 6. Exhibits

(a)	Exhibits
12.1*	Ratio of earnings to fixed charges
31.1*	Certification by the Chief Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a)
31.2*	Certification by the Chief Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a)
32*	Written Statement of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)
101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase
101.DEF*	XBRL Taxonomy Extension Definition Linkbase
101.LAB*	XBRL Taxonomy Extension Label Linkbase
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase

* filed herewith

31

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

LABORATORY CORPORATION OF AMERICA HOLDINGS

Registrant

By:	/s/ DAVID P. KING
	David P. King
	Chairman of the Board, President
	and Chief Executive Officer

By:	/s/ WILLIAM B. HAYES
	William B. Hayes
	Executive Vice President,
	Chief Financial Officer and Treasurer

July 30 , 2013

32

EX-12.1

					EXHIBIT 12.1
STATEMENT OF COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
(dollars in millions, except ratio information)
	Fiscal Years Ended December 31,					Six Months Ended
	2008	2009	2010	2011	2012	June 30, 2013
Income from continuing operations
before income taxes	785.7	884.6	915.6	866.1	944.2	491.4
Fixed Charges:
Interest on long-term and
short-term debt including
amortization of debt expense	72.0	62.9	70.0	87.5	94.5	47.6
Portion of rental expense as can be
demonstrated to be representative
of the interest factor	58.4	61.0	67.4	73.4	75.3	39.2
Total fixed charges	130.4	123.9	137.4	160.9	169.8	86.8
Earnings before income taxes and
fixed charges	916.1	1,008.5	1,053.0	1,027.0	1,114.0	578.2
Ratio of earnings to fixed charges	7.03	8.14	7.66	6.38	6.56	6.66

EX-31.1

Exhibit 31.1

Certification

I, David P. King, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Laboratory Corporation of America Holdings;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: July 30, 2013
	By:	/s/ DAVID P. KING
		David P. King
		Chief Executive Officer
		(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification

I, William B. Hayes, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Laboratory Corporation of America Holdings;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: July 30, 2013
	By:	/s/ WILLIAM B. HAYES
		William B. Hayes
		Chief Financial Officer
		(Principal Financial Officer)

EX-32

Exhibit 32

Written Statement of

Chief Executive Officer and Chief Financial Officer

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

The undersigned, the Chief Executive Officer and the Chief Financial Officer of Laboratory Corporation of America Holdings (the “Company”), each hereby certifies that, to his knowledge on the date hereof:

(a) the Form 10-Q of the Company for the Period Ended June 30, 2013 filed on the date hereof with the Securities and Exchange Commission (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b) information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ DAVID P. KING
	David P. King
	Chief Executive Officer
	July 30, 2013

By:	/s/ WILLIAM B. HAYES
	William B. Hayes
	Chief Financial Officer
	July 30, 2013

XML

PENSION AND POSTRETIREMENT PLANS

6 Months Ended

Jun. 30, 2013

Postemployment Benefits [Abstract]

Pension And Postretirement Plans

PENSION AND POSTRETIREMENT PLANS

The Company’s defined contribution retirement plan (the “401K Plan”) covers substantially all employees. All employees eligible for the 401K Plan receive a minimum 3% non-elective contribution concurrent with each payroll period. The 401K Plan also permits discretionary contributions by the Company of 1% to 3% of pay for eligible employees based on years of service with the Company. The cost of this plan was $12.2 and $11.8 for the three months endedJune 30, 2013 and 2012, respectively, and $25.1 and $24.3 for the six months endedJune 30, 2013 and 2012, respectively.

The Company also maintains a frozen defined benefit retirement plan (the “Company Plan”), that as of December 31, 2009, covered substantially all employees. The benefits to be paid under the Company Plan are based on years of credited service through December 31, 2009 and ongoing interest credits. Effective January 1, 2010, the Company Plan was closed to new participants. The Company’s policy is to fund the Company Plan with at least the minimum amount required by applicable regulations.

The Company maintains a second unfunded, non-contributory, non-qualified defined benefit retirement plan (the “PEP”), that as of December 31, 2009, covered substantially all of its senior management group. The PEP supplements the Company Plan and was closed to new participants effective January 1, 2010.

The effect on operations for the Company Plan and the PEP is summarized as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Service cost for benefits earned	$	0.6		$	0.6		$	1.2		$	1.2
Interest cost on benefit obligation	3.7			3.7			7.4			7.4
Expected return on plan assets	(4.3		)	(4.2		)	(8.6		)	(8.6		)
Net amortization and deferral	3.0			2.9			6.0			6.0
Defined benefit plan costs	$	3.0		$	3.0		$	6.0		$	6.0

During the six months endedJune 30, 2013, the Company contributed $1.8 to its defined benefit retirement plan.

The Company assumed obligations under a subsidiary’s post-retirement medical plan. Coverage under this plan is restricted to a limited number of existing employees of the subsidiary. This plan is unfunded and the Company’s policy is to fund benefits as claims are incurred. The effect on operations of the post-retirement medical plan is shown in the following table:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Service cost for benefits earned	$	0.1	$	0.1	$	0.2	$	0.2
Interest cost on benefit obligation	0.7		0.6		1.3		1.2
Net amortization and deferral	0.3		—		0.5		—
Postretirement medical plan costs	$	1.1	$	0.7	$	2.0	$	1.4

XML

SUPPLEMENTAL CASH FLOW INFORMATION (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash paid during period for:
Interest	$ 54.6	$ 39.8
Income taxes, net of refunds	164.3	163.7
Stock Issued During Period, Value, Conversion of Convertible Securities	$ 10.3	$ 0

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Net sales	$ 1,468.2	$ 1,423.4	$ 2,909.1	$ 2,846.7
Cost of sales	890.9	843.9	1,759.6	1,691.1
Gross profit	577.3	579.5	1,149.5	1,155.6
Selling, general and administrative expenses	280.9	279.5	564.1	550.7
Amortization of intangibles and other assets	20.5	20.6	40.0	42.0
Restructuring and other special charges	6.6	3.4	14.1	(0.2)
Operating income	269.3	276.0	531.3	563.1
Other income (expenses):
Interest expense	(23.1)	(21.3)	(47.6)	(42.8)
Equity method income, net	4.4	8.0	8.7	12.3
Investment income	0.2	0.2	0.4	0.4
Other, net	(0.8)	(6.7)	(1.4)	(7.2)
Earnings before income taxes	250.0	256.2	491.4	525.8
Provision for income taxes	97.7	102.4	191.4	210.0
Net earnings	152.3	153.8	300.0	315.8
Less: Net earnings attributable to the noncontrolling interest	(0.4)	(0.5)	(0.8)	(0.9)
Net earnings attributable to Laboratory Corporation of America Holdings	$ 151.9	$ 153.3	$ 299.2	$ 314.9
Basic earnings per common share (in dollars per share)	$ 1.65	$ 1.59	$ 3.24	$ 3.25
Diluted earnings per common share (in dollars per share)	$ 1.62	$ 1.56	$ 3.18	$ 3.19

XML

RESTRUCTURING AND OTHER SPECIAL CHARGES

6 Months Ended

Jun. 30, 2013

Restructuring and Related Activities [Abstract]

Restructuring and Other Special Charges

RESTRUCTURING AND OTHER SPECIAL CHARGES

During the first six months of 2013, the Company recorded net restructuring charges of $14.1. The charges were comprised of $10.1 in severance and other personnel costs along with $6.3 in costs associated with facility closures and general integration initiatives. These charges were offset by the reversal of previously established reserves of $0.6 in unused severance and $1.7 in unused facility-related costs.

During the first six months of 2012, the Company recorded a net credit of $0.2 in restructuring and other special charges. The Company reversed previously established reserves of $4.8 in unused severance and $2.9 in unused facility related costs. This net credit also includes charges of $6.2 related to severance and other personnel costs, and $1.3 primarily related to facility-related costs primarily related to ongoing integration activities for Clearstone Central Laboratories, Orchid Cellmark Inc. ("Orchid") and the Integrated Genetics Division (formerly Genzyme Genetics*) and costs associated with the previously announced termination of an executive vice president.

As part of the Clearstone integration, the Company also recorded a $6.9 loss on the disposal of one its European subsidiaries in Other, net under Other income (expenses) during the three months ended June 30, 2012.

* Genzyme Genetics and its logo are trademarks of Genzyme Corporation and used by Esoterix Genetic Laboratories, LLC, a wholly-owned subsidiary of LabCorp, under license. Esoterix Genetic Laboratories and LabCorp are operated independently from Genzyme Corporation.

XML

RESTRUCTURING RESERVES (Tables)

6 Months Ended

Jun. 30, 2013

Restructuring Reserve [Abstract]

Company's Restructuring Activities

The following represents the Company’s restructuring activities for the period indicated:

	Severance and Other Employee Costs			Lease and Other Facility Costs			Total
Balance as of December 31, 2012	$	1.4		$	26.2		$	27.6
Restructuring charges	10.1			6.3			16.4
Reduction of prior restructuring accruals	(0.6		)	(1.7		)	(2.3		)
Cash payments and other adjustments	(9.6		)	(4.7		)	(14.3		)
Balance as of June 30, 2013	$	1.3		$	26.1		$	27.4
Current							$	8.7
Non-current							18.7
							$	27.4

XML

BUSINESS SEGMENT INFORMATION Business Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Total net revenues	$ 1,468.2		$ 1,423.4		$ 2,909.1	$ 2,846.7
Total operating income	269.3		276.0		531.3	563.1
Non-operating expenses, net	19.3		19.8		39.9	37.3
Earnings before income taxes	250.0		256.2		491.4	525.8
Provision for income taxes	97.7		102.4		191.4	210.0
Net earnings	152.3		153.8		300.0	315.8
Less income attributable to noncontrolling interests	(0.4)		(0.5)		(0.8)	(0.9)
Net income attributable to Laboratory Corporation of America Holdings	151.9	151.9	153.3	153.3	299.2	314.9
Clinical diagnostics laboratory [Member]
Segment Reporting Information [Line Items]
Total net revenues	1,381.6		1,339.6		2,735.6	2,680.1
Total operating income	380.1		380.5		754.3	767.6
General corporate expenses [Member]
Segment Reporting Information [Line Items]
Total operating income	(134.0)		(130.3)		(270.7)	(256.3)
Other [Member]
Segment Reporting Information [Line Items]
Total net revenues	86.6		83.8		173.5	166.6
Total operating income	$ 23.2		$ 25.8		$ 47.7	$ 51.8

XML

FAIR VALUE MEASUREMENTS

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

The Company’s population of financial assets and liabilities subject to fair value measurements as of June 30, 2013 and December 31, 2012 is as follows:

			Fair Value Measurements as of
	Fair Value as of		June 30, 2013
			Using Fair Value Hierarchy
	June 30, 2013		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.4	$	—	$	20.4	$	—

			Fair Value Measurements as of
	Fair Value as of		December 31, 2012
			Using Fair Value Hierarchy
	December 31, 2012		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.7	$	—	$	20.7	$	—

The Company has a noncontrolling interest put related to its Ontario subsidiary. The contractual value of the remaining put, in excess of the current noncontrolling interest of $4.9, totals $15.5 at June 30, 2013 and has been classified as mezzanine equity in the Company’s condensed consolidated balance sheet. The noncontrolling interest put is valued at its contractually determined value, which approximates fair value.

The carrying amounts of cash and cash equivalents, accounts receivable, income taxes receivable, and accounts payable are considered to be representative of their respective fair values due to their short-term nature. The fair market value of the zero-coupon subordinated notes, based on market pricing, was approximately $167.7 and $179.1 as of June 30, 2013 and December 31, 2012, respectively. The fair market value of the senior notes, based on market pricing, was approximately $2,221.6 and $2,720.5 as of June 30, 2013 and December 31, 2012, respectively. The Company's note and debt instruments are considered level 2 instruments, as the fair market values of these instruments are determined using other observable inputs.

XML

COMMITMENTS AND CONTINGENCIES (Details) (USD $)	3 Months Ended					57 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Jun. 30, 2013	Aug. 24, 2012 Recipients	Jun. 30, 2011 Tri-State Clinical Laboratory Services, LLC [Member]	Sep. 30, 2012 Medicaid Billing [Member] Pending Litigation [Member] Subpoenas
Loss Contingencies [Line Items]
Litigation settlement expense in connection with the California False Claims Act lawsuit		$ 34,500,000
Previously recorded litigation reserve in connection with the California False Claims Act lawsuit		15,000,000
Litigation Settlement, Gross	49.5
Number of subpoenas received						3
Ownership interest percentage, parent					50.00%
Number of Recipients				39
Proposed damages per violation				0.0005
Letters of credit, amount			$ 38,000,000

XML

GOODWILL AND INTANGIBLE ASSETS (Components of identifiable intangible assets) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,302.5	$ 2,320.2
Accumulated Amortization	(696.2)	(652.5)
Intangible Assets, Net (Excluding Goodwill)	1,606.3	1,667.7
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,314.1	1,296.1
Accumulated Amortization	(514.2)	(483.3)
Intangible Assets, Net (Excluding Goodwill)	799.9	812.8
Patents, Licenses And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	117.2	117.2
Accumulated Amortization	(81.4)	(76.2)
Intangible Assets, Net (Excluding Goodwill)	35.8	41.0
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	38.8	32.3
Accumulated Amortization	(22.4)	(19.6)
Intangible Assets, Net (Excluding Goodwill)	16.4	12.7
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	131.0	131.3
Accumulated Amortization	(78.2)	(73.4)
Intangible Assets, Net (Excluding Goodwill)	52.8	57.9
Canadian licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	701.4	743.3
Accumulated Amortization	0	0
Intangible Assets, Net (Excluding Goodwill)	$ 701.4	$ 743.3

XML

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2013

Stockholders' Equity Note [Abstract]

Changes in common shares issued and held in treasury

The changes in common shares issued and held in treasury are summarized below:

	Issued		Held in Treasury		Outstanding
Common shares at December 31, 2012	115.8		(22.3	)	93.5
Common stock issued under employee stock plans	2.0		—		2.0
Common stock issued upon conversion of zero-coupon subordinated notes	0.1		—		0.1
Surrender of restricted stock and performance share awards	—		(0.1	)	(0.1	)
Retirement of common stock	(5.0	)	—		(5.0	)
Common shares at June 30, 2013	112.9		(22.4	)	90.5

XML

DEBT (Tables)

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Short-term borrowings and current portion of long-term debt

Short-term borrowings and the current portion of long-term debt at June 30, 2013 and December 31, 2012 consisted of the following:

	June 30, 2013		December 31, 2012
Zero-coupon convertible subordinated notes	$	109.9	$	130.0
Revolving credit facility	10.0		—
Senior notes due 2013	—		350.0
Total short-term borrowings and current portion of long-term debt	$	119.9	$	480.0

Long-term debt

Long-term debt at June 30, 2013 and December 31, 2012 consisted of the following:

	June 30, 2013		December 31, 2012
5 5/8% senior notes due 2015	$	250.0	$	250.0
3 1/8% senior notes due 2016	325.0		325.0
2 1/5% senior notes due 2017	500.0		500.0
4 5/8% senior notes due 2020	600.0		600.0
3 3/4% senior notes due 2022	500.0		500.0
Revolving credit facility	215.0		—
Total long-term debt	$	2,390.0	$	2,175.0

XML

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY - Accumulated Other Comprehensive Earnings (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Accumulated Other Comprehensive Earnings [Roll Forward]
Foreign Currency Translation Adjustments, Beginning balance			$ 162.9
Other comprehensive income before reclassifications			(59.1)
Tax effect of adjustments			22.4
Foreign Currency Translation Adjustments, Ending balance	126.2		126.2
Net Benefit Plan Adjustments, Beginning balance			(93.5)
Amounts reclassified from accumulated other comprehensive income	3.3	0	6.5	[1]	0
Tax effect of adjustments			(2.5)
Net Benefit Plan Adjustments, Ending balance	(89.5)		(89.5)
Accumulated Other Comprehensive Earnings, Beginning balance			69.4
Other comprehensive income before reclassifications			(59.1)
Amounts reclassified from accumulated other comprehensive income	3.3	0	6.5	[1]	0
Tax effect of adjustments	11.0	6.8	19.9		(2.5)
Accumulated Other Comprehensive Earnings, Ending balance	$ 36.7		$ 36.7

[1] The amortization of prior service cost is included in the computation of net periodic benefit cost. Refer to Note 10 Pension and Postretirement Plans for additional information regarding the Company's net periodic benefit cost.

XML

NONCONTROLLING INTEREST PUTS (Details) (Ontario Joint Venture Business Acquisition [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Ontario Joint Venture Business Acquisition [Member]
Noncontrolling Interest [Line Items]
Value of noncontrolling interest put	$ 4.9
Combined contractual value of noncontrolling interest puts	$ 15.5

XML

DEBT (Short-term borrowings and current portion of long-term debt) (Table) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Short-term Debt [Line Items]
Total short-term borrowings and current portion of long-term debt	$ 119.9	$ 480.0
Zero-coupon convertible subordinated notes [Member]
Short-term Debt [Line Items]
Total short-term borrowings and current portion of long-term debt	109.9	130.0
Senior Notes [Member]
Short-term Debt [Line Items]
Total short-term borrowings and current portion of long-term debt	$ 0	$ 350.0

XML

PENSION AND POSTRETIREMENT PLANS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Sep. 30, 2012 Defined Benefit Plans [Member]	Mar. 31, 2012 Defined Benefit Plans [Member]	Jun. 30, 2013 Defined Benefit Plans [Member]	Jun. 30, 2012 Defined Benefit Plans [Member]	Sep. 30, 2012 Post-Retirement Medical Plan [Member]	Mar. 31, 2012 Post-Retirement Medical Plan [Member]	Jun. 30, 2013 Post-Retirement Medical Plan [Member]	Jun. 30, 2012 Post-Retirement Medical Plan [Member]
Defined Benefit Plan Disclosures [Line Items]
Pension Contributions			$ 0
Minimum non-elective contribution (NEC) % for the 401(K) plan (in hundredths)			3.00%
Discretionary contribution % for the 401(K) plan, range mininum			1.00%
Discretionary contribution % for the 401(K) plan, range maximum			3.00%
Defined contribution retirement plan cost	12.2	11.8	25.1	24.3
Defined Benefit Plan and Postretirement Plan Disclosure
Service cost for benefits earned					0.6	0.6	1.2	1.2	0.1	0.1	0.2	0.2
Interest cost on benefit obligation					3.7	3.7	7.4	7.4	0.7	0.6	1.3	1.2
Expected return on plan assets					(4.3)	(4.2)	(8.6)	(8.6)
Net amortization and deferral					3.0	2.9	6.0	6.0	0.3	0	0.5	0
Defined benefit/postretirement plan costs					$ 3.0	$ 3.0	$ 6.0	$ 6.0	$ 1.1	$ 0.7	$ 2.0	$ 1.4

XML

BASIS OF FINANCIAL STATEMENT PRESENTATION (Details)	6 Months Ended
	Jun. 30, 2013
Accounting Policies [Abstract]
Ownership percentage below which investments are generally accounted for on the cost method (in thousandths)	20.00%

XML

DEBT (Convertible Subordinated Notes) (Details) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Zero Coupon Convertible Subordinated Notes [Line Items]
Payments on zero-coupon subordinated notes	$ (21,300,000)	$ (2,500,000)
Common stock issued upon conversion of zero-coupon subordinated notes (in shares)	100,000
Zero-coupon convertible subordinated notes [Member]
Zero Coupon Convertible Subordinated Notes [Line Items]
Principal amount at maturity of zero coupon subordinated notes converted	25,300,000
Value of cash and common stock in connection with conversions of zero coupon subordinated notes settled in current period	31,600,000
Payments on zero-coupon subordinated notes	(21,300,000)
Minimum contingent cash interest rate on zero-coupon subordinated notes (in hundredths)	0.125%
Number of trading days used to establish contingent cash interest rate on zero-coupon subordinated notes (in days)	5
Stock conversion rate for zero-coupon subordinated notes (per thousand)	13.4108
Principal amount of zero-coupon subordinated notes	$ 1,000
Date of the terms for the zero-coupon subordinated notes and indenture	Oct. 24, 2006

XML

GOODWILL AND INTANGIBLE ASSETS (Tables)

6 Months Ended

Jun. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the six month period ended June 30, 2013 and for the year ended December 31, 2012 are as follows:

	June 30, 2013			December 31, 2012
Balance as of January 1	$	2,901.7		$	2,681.8
Goodwill acquired during the period	85.6			224.5
Adjustments to goodwill	(0.7		)	(4.6		)
Balance at end of period	$	2,986.6		$	2,901.7

Components of identifiable intangible assets

The components of identifiable intangible assets are as follows:

	June 30, 2013							December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships	$	1,314.1	$	(514.2	)	$	799.9	$	1,296.1	$	(483.3	)	$	812.8
Patents, licenses and technology	117.2		(81.4		)	35.8		117.2		(76.2		)	41.0
Non-compete agreements	38.8		(22.4		)	16.4		32.3		(19.6		)	12.7
Trade names	131.0		(78.2		)	52.8		131.3		(73.4		)	57.9
Canadian licenses	701.4		—			701.4		743.3		—			743.3
	$	2,302.5	$	(696.2	)	$	1,606.3	$	2,320.2	$	(652.5	)	$	1,667.7

XML

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (USD $) In Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]
BALANCE at Dec. 31, 2011	$ 2,503.5	$ 11.7	$ 0	$ 3,387.2	$ (940.9)	$ 45.5
Net earnings attributable to Laboratory Corporation of America Holdings	314.9			314.9
Other comprehensive earnings, net of tax	3.9					3.9
Issuance of common stock under employee stock plans	43.5	0.1	43.4
Surrender of restricted stock and performance share awards	(10.9)				(10.9)
Conversion of zero-coupon convertible debt	0	0	0
Stock compensation	23.7		23.7
Income tax benefit from stock options exercised	5.8		5.8
Purchase of common stock	(252.6)	(0.3)	(72.9)	(179.4)
BALANCE at Jun. 30, 2012	2,631.8	11.5	0	3,522.7	(951.8)	49.4
BALANCE at Dec. 31, 2012	2,717.4	11.3	0	3,588.5	(951.8)	69.4
Net earnings attributable to Laboratory Corporation of America Holdings	299.2			299.2
Other comprehensive earnings, net of tax	(32.7)					(32.7)
Issuance of common stock under employee stock plans	131.1	0.2	130.9
Surrender of restricted stock and performance share awards	(7.1)				(7.1)
Conversion of zero-coupon convertible debt	4.7
Stock compensation	22.1		22.1
Income tax benefit from stock options exercised	7.9		7.9
Purchase of common stock	(479.2)	(0.5)	(165.6)	(313.1)
BALANCE at Jun. 30, 2013	$ 2,663.4	$ 11.0	$ 0	$ 3,574.6	$ (958.9)	$ 36.7

XML

BASIS OF FINANCIAL STATEMENT PRESENTATION

6 Months Ended

Jun. 30, 2013

Accounting Policies [Abstract]

Basis of Financial Statement Presentation

BASIS OF FINANCIAL STATEMENT PRESENTATION

The consolidated financial statements include the accounts of Laboratory Corporation of America Holdings (the “Company”) and its majority-owned subsidiaries for which it exercises control. Long-term investments in affiliated companies in which the Company exercises significant influence, but which it does not control, are accounted for using the equity method. Investments in which the Company does not exercise significant influence (generally, when the Company has an investment of less than 20.0% and no representation on the investee’s board of directors) are accounted for using the cost method. All significant inter-company transactions and accounts have been eliminated. The Company does not have any variable interest entities or special purpose entities whose financial results are not included in the condensed consolidated financial statements.

The financial statements of the Company’s foreign subsidiaries are measured using the local currency as the functional currency. Assets and liabilities are translated at exchange rates as of the balance sheet date. Revenues and expenses are translated at average monthly exchange rates prevailing during the period. Resulting translation adjustments are included in “Accumulated other comprehensive income.”

The accompanying condensed consolidated financial statements of the Company are unaudited. In the opinion of management, all adjustments necessary for a fair statement of results of operations, cash flows and financial position have been made. Except as otherwise disclosed, all such adjustments are of a normal recurring nature. Interim results are not necessarily indicative of results for a full year. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by generally accepted accounting principles.

The financial statements and notes are presented in accordance with the rules and regulations of the Securities and Exchange Commission and do not contain certain information included in the Company’s 2012 Annual Report on Form 10-K. Therefore, the interim statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report.

New Accounting Pronouncements:

In February 2013, the FASB issued an amendment to existing guidance regarding the reporting of amounts reclassified out of accumulated other comprehensive income. The amendment requires an entity to present information about reclassification adjustments from accumulated other comprehensive income in its annual financial statements in a single note or on the face of the financial statements. The amendment is effective prospectively for reporting periods beginning after December 15, 2012. See Note 7 for presentation of reclassification adjustments from accumulated other comprehensive income.

XML

RESTRUCTURING RESERVES

6 Months Ended

Jun. 30, 2013

Restructuring Reserve [Abstract]

Restructuring Reserves

RESTRUCTURING RESERVES

The following represents the Company’s restructuring activities for the period indicated:

	Severance and Other Employee Costs			Lease and Other Facility Costs			Total
Balance as of December 31, 2012	$	1.4		$	26.2		$	27.6
Restructuring charges	10.1			6.3			16.4
Reduction of prior restructuring accruals	(0.6		)	(1.7		)	(2.3		)
Cash payments and other adjustments	(9.6		)	(4.7		)	(14.3		)
Balance as of June 30, 2013	$	1.3		$	26.1		$	27.4
Current							$	8.7
Non-current							18.7
							$	27.4

XML

EARNINGS PER SHARE

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

Basic earnings per share is computed by dividing net earnings attributable to Laboratory Corporation of America Holdings by the weighted average number of common shares outstanding. Diluted earnings per share is computed by dividing net earnings including the impact of dilutive adjustments by the weighted average number of common shares outstanding plus potentially dilutive shares, as if they had been issued at the earlier of the date of issuance or the beginning of the period presented. Potentially dilutive common shares result primarily from the Company’s outstanding stock options, restricted stock awards, restricted stock units, performance share awards, and shares issuable upon conversion of zero-coupon subordinated notes.

The following represents a reconciliation of basic earnings per share to diluted earnings per share:

	Three Months Ended June 30,										Six Months Ended June 30,
	2013					2012					2013					2012
	Income		Shares	Per Share Amount		Income		Shares	Per Share Amount		Income		Shares	Per Share Amount		Income		Shares	Per Share Amount
Basic earnings per share:
Net earnings	$	151.9	92.0	$	1.65	$	153.3	96.3	$	1.59	$	299.2	92.5	$	3.24	$	314.9	96.8	$	3.25
Dilutive effect of employee  stock options and awards	—		1.1			—		1.0			—		1.0			—		1.1
Effect of convertible debt	—		0.6			—		0.7			—		0.6			—		0.7
Diluted earnings per share:
Net earnings including impact of dilutive adjustments	$	151.9	93.7	$	1.62	$	153.3	98.0	$	1.56	$	299.2	94.1	$	3.18	$	314.9	98.6	$	3.19

The following table summarizes the potential common shares not included in the computation of diluted earnings per share because their impact would have been antidilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2013	2012	2013	2012
Stock options	0.3	2.2	0.5	1.8

XML

DEBT (Long-term debt) (Table) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Jun. 30, 2013 Revolving credit facility [Member]	Jun. 30, 2013 Senior notes due 2013 [Member]	Jun. 30, 2013 Senior notes due 2015 [Member]	Dec. 31, 2012 Senior notes due 2015 [Member]	Jun. 30, 2013 Senior notes due 2016 [Member]	Dec. 31, 2012 Senior notes due 2016 [Member]	Jun. 30, 2013 Senior notes due 2017 [Member]	Dec. 31, 2012 Senior notes due 2017 [Member]	Aug. 23, 2012 Senior notes due 2017 [Member]	Jun. 30, 2013 Senior notes due 2020 [Member]	Dec. 31, 2012 Senior notes due 2020 [Member]	Jun. 30, 2013 Senior notes due 2022 [Member]	Dec. 31, 2012 Senior notes due 2022 [Member]	Aug. 23, 2012 Senior notes due 2022 [Member]
Debt Instrument [Line Items]
Debt to EBITDA (Leverage) Ratio	1.95
Total long-term debt	$ 2,390.0	$ 2,175.0				$ 250.0	$ 250.0	$ 325.0	$ 325.0	$ 500.0	$ 500.0		$ 600.0	$ 600.0	$ 500.0	$ 500.0
Long-term Line of Credit			$ 0	$ 215.0
Stated interest rate percentage					5.50%	5.625%		3.125%		2.20%		2.20%	4.625%		3.75%		3.75%

XML

PENSION AND POSTRETIREMENT PLANS (Tables)

6 Months Ended

Jun. 30, 2013

Postemployment Benefits [Abstract]

Schedule of Pensions and Postretirement Plans

The effect on operations of the post-retirement medical plan is shown in the following table:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Service cost for benefits earned	$	0.1	$	0.1	$	0.2	$	0.2
Interest cost on benefit obligation	0.7		0.6		1.3		1.2
Net amortization and deferral	0.3		—		0.5		—
Postretirement medical plan costs	$	1.1	$	0.7	$	2.0	$	1.4

The effect on operations for the Company Plan and the PEP is summarized as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Service cost for benefits earned	$	0.6		$	0.6		$	1.2		$	1.2
Interest cost on benefit obligation	3.7			3.7			7.4			7.4
Expected return on plan assets	(4.3		)	(4.2		)	(8.6		)	(8.6		)
Net amortization and deferral	3.0			2.9			6.0			6.0
Defined benefit plan costs	$	3.0		$	3.0		$	6.0		$	6.0

XML

EARNINGS PER SHARE (Reconciliation of Basic Earnings Per Share to Diluted Earnings Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2013	Jun. 30, 2012
Income [Abstract]
Net earnings, basic	$ 151.9	$ 151.9	$ 153.3	$ 153.3	$ 299.2	$ 314.9
Net earnings including impact of dilutive adjustments		$ 151.9		$ 153.3	$ 299.2	$ 314.9
Shares [Abstract]
Net earnings, basic (in shares)		92.0		96.3	92.5	96.8
Dilutive effect of employee stock options and awards, (in shares)		1.1		1.0	1.0	1.1
Effect of convertible debt, net of tax, (in shares)		0.6		0.7	0.6	0.7
Net earnings including impact of dilutive adjustments, (in shares)		93.7		98.0	94.1	98.6
Per Share Amount [Abstract]
Basic earnings per common share (in dollars per share)	$ 1.65	$ 1.65	$ 1.59	$ 1.59	$ 3.24	$ 3.25
Diluted earnings per common share (in dollars per share)	$ 1.62	$ 1.62	$ 1.56	$ 1.56	$ 3.18	$ 3.19

XML

GOODWILL AND INTANGIBLE ASSETS (Changes in Carrying Amount of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Goodwill [Roll Forward]
Balance as of January 1	$ 2,901.7	$ 2,681.8
Goodwill acquired during the period	85.6	224.5
Adjustments to goodwill	(0.7)	(4.6)
Balance at end of period	$ 2,986.6	$ 2,901.7

XML

BUSINESS ACQUISITIONS Business Acquisitions in the Aggregate (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	$ 104.2	$ 25.2
Finite-lived Intangible Assets Acquired	24.2
Goodwill, Acquired During Period	$ 85.6		$ 224.5

XML

PENSION AND POSTRETIREMENT PLANS Defined Contribution Plans (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 12.2	$ 11.8	$ 25.1	$ 24.3

XML

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Feb. 08, 2013
Stockholders' Equity Attributable to Parent [Abstract]
Common stock, shares authorized	265.0
Common stock, par value per share (in dollars per share)	$ 0.10
Preferred stock, shares authorized	30.0
Preferred stock, par value per share (in dollars per share)	$ 0.10
Preferred stock, shares outstanding	0
Rollforward of common shares issued
Common shares issued, beginning balance (in shares)	115.8
Common stock issued under employee stock plans (in shares)	2.0
Common stock issued upon conversion of zero-coupon subordinated notes (in shares)	0.1
Retirement of common stock (in shares)	(5.0)
Common shares issued, ending balance (in shares)	112.9
Rollforward of common shares held in treasury
Common shares held in Treasury, beginning balance (in shares)	(22.3)
Common stock issued upon conversion of zero-coupon subordinated notes (in shares)	0.1
Surrender of restricted stock and performance share awards (in shares)	(0.1)
Common shares held in Treasury, ending balance (in shares)	(22.4)
Rollforward of common shares outstanding
Common shares outstanding, beginning balance (in shares)	93.5
Common stock issued under employee stock plans (in shares)	2.0
Common stock issued upon conversion of zero-coupon subordinated notes (in shares)	0.1
Surrender of restricted stock and performance share awards (in shares)	(0.1)
Retirement of common stock (in shares)	(5.0)
Common shares outstanding, ending balance (in shares)	90.5
Rollforward of Share Repurchase Program
Outstanding common stock repurchase authorization, beginning balance	$ 74.0
Common stock repurchase authorization			1,000.0
Common stock repurchased (in shares)	(5.0)
Purchase of common stock	(479.2)	(252.6)
Outstanding common stock repurchase authorization, ending balance	$ 594.8

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current Assets:
Allowance for doubtful accounts	$ 205.1	$ 191.5
Shareholders' Equity:
Common stock, shares outstanding (in shares)	90.5	93.5

XML

PREFERRED STOCK AND COMMON SHAREHOLDERS' EQUITY

6 Months Ended

Jun. 30, 2013

Stockholders' Equity Note [Abstract]

Preferred Stock and Common Shareholders' Equity

. PREFERRED STOCK AND COMMON SHAREHOLDERS’ EQUITY

The Company is authorized to issue up to 265.0 shares of common stock, par value $0.10 per share. The Company’s treasury shares are recorded at aggregate cost. The Company is authorized to issue up to 30.0 shares of preferred stock, par value $0.10 per share. There were no preferred shares outstanding as of June 30, 2013.

The changes in common shares issued and held in treasury are summarized below:

	Issued		Held in Treasury		Outstanding
Common shares at December 31, 2012	115.8		(22.3	)	93.5
Common stock issued under employee stock plans	2.0		—		2.0
Common stock issued upon conversion of zero-coupon subordinated notes	0.1		—		0.1
Surrender of restricted stock and performance share awards	—		(0.1	)	(0.1	)
Retirement of common stock	(5.0	)	—		(5.0	)
Common shares at June 30, 2013	112.9		(22.4	)	90.5

Share Repurchase Program

As of December 31, 2012, the Company had outstanding authorization from the Board of Directors to purchase approximately $74.0 of Company common stock based on settled trades as of that date. On February 8, 2013, the Company announced the Board of Directors authorized the purchase of $1,000.0 of additional shares of the Company’s common stock. During the six months endedJune 30, 2013, the Company purchased 5.0 shares of its common stock at a total cost of $479.2. As of June 30, 2013, the Company had outstanding authorization from the Board of Directors to purchase $594.8 of Company common stock based on settled trades as of that date.

Accumulated Other Comprehensive Earnings

The components of accumulated other comprehensive earnings are as follows:

	Foreign Currency Translation Adjustments			Net Benefit Plan Adjustments			Accumulated Other Comprehensive Earnings
Balance at December 31, 2012	$	162.9		$	(93.5	)	$	69.4
Other comprehensive income before reclassifications	(59.1		)	—			(59.1		)
Amounts reclassified from accumulated other comprehensive income (a)	—			6.5			6.5
Tax effect of adjustments	22.4			(2.5		)	19.9
Balance at June 30, 2013	$	126.2		$	(89.5	)	$	36.7

(a) The amortization of prior service cost is included in the computation of net periodic benefit cost. Refer to Note 10 Pension and Postretirement Plans for additional information regarding the Company's net periodic benefit cost.

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net earnings	$ 152.3	$ 153.8	$ 300.0		$ 315.8
Other Comprehensive Earnings, Net of Tax
Foreign currency translation adjustments	(31.4)	(17.3)	(59.1)		6.4
Net benefit plan adjustments	3.3	0	6.5	[1]	0
Other comprehensive earnings (loss) before tax	(28.1)	(17.3)	(52.6)		6.4
Provision for income tax related to items of comprehensive earnings	(11.0)	(6.8)	(19.9)		2.5
Other comprehensive earnings (loss), net of tax	(17.1)	(10.5)	(32.7)		3.9
Comprehensive earnings	135.2	143.3	267.3		319.7
Less: Net earnings attributable to the noncontrolling interest	(0.4)	(0.5)	(0.8)		(0.9)
Comprehensive earnings attributable to Laboratory Corporation of America Holdings	$ 134.8	$ 142.8	$ 266.5		$ 318.8

[1] The amortization of prior service cost is included in the computation of net periodic benefit cost. Refer to Note 10 Pension and Postretirement Plans for additional information regarding the Company's net periodic benefit cost.

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 111.3	$ 466.8
Accounts receivable, net of allowance for doubtful accounts of $198.4 and $191.5 at March 31, 2013 and December 31, 2012, respectively	815.7	718.5
Supplies inventories	126.4	121.0
Prepaid expenses and other	75.3	74.6
Deferred income taxes	19.3	10.9
Total current assets	1,148.0	1,391.8
Property, plant and equipment, net	646.9	630.8
Goodwill, net	2,986.6	2,901.7
Intangible assets, net	1,606.3	1,667.7
Joint venture partnerships and equity method investments	87.5	78.1
Other assets, net	116.6	124.9
Total assets	6,591.9	6,795.0
Current liabilities:
Accounts payable	253.4	236.9
Accrued expenses and other	281.8	311.6
Short-term borrowings and current portion of long-term debt	119.9	480.0
Liabilities, Current	655.1	1,028.5
Long-term debt, less current portion	2,390.0	2,175.0
Deferred income taxes and other tax liabilities	559.1	546.0
Other liabilities	303.9	307.4
Total liabilities	3,908.1	4,056.9
Commitments and contingent liabilities
Noncontrolling interest	20.4	20.7
Shareholders' equity:
Common stock, 92.8 and 93.5 shares outstanding at March 31, 2013 and December 31, 2012, respectively	11.0	11.3
Additional paid-in capital	0	0
Retained earnings	3,574.6	3,588.5
Less common stock held in treasury	(958.9)	(951.8)
Accumulated other comprehensive income	36.7	69.4
Total shareholders' equity	2,663.4	2,717.4
Total liabilities and shareholders' equity	$ 6,591.9	$ 6,795.0

XML

FAIR VALUE MEASUREMENTS (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	$ 20.4	$ 20.7
Fair market value of zero-coupon subordinated notes	167.7	179.1
Fair market value of senior notes	2,221.6	2,720.5
Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0	0
Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	20.4	20.7
Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	$ 0	$ 0

XML

FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Company's population of financial assets and liabilities subject to fair value measurements

The Company’s population of financial assets and liabilities subject to fair value measurements as of June 30, 2013 and December 31, 2012 is as follows:

			Fair Value Measurements as of
	Fair Value as of		June 30, 2013
			Using Fair Value Hierarchy
	June 30, 2013		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.4	$	—	$	20.4	$	—

			Fair Value Measurements as of
	Fair Value as of		December 31, 2012
			Using Fair Value Hierarchy
	December 31, 2012		Level 1		Level 2		Level 3
Noncontrolling interest put	$	20.7	$	—	$	20.7	$	—

XML

EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Reconciliation of Basic earnings per Share to Diluted Earnings per Share

The following represents a reconciliation of basic earnings per share to diluted earnings per share:

	Three Months Ended June 30,										Six Months Ended June 30,
	2013					2012					2013					2012
	Income		Shares	Per Share Amount		Income		Shares	Per Share Amount		Income		Shares	Per Share Amount		Income		Shares	Per Share Amount
Basic earnings per share:
Net earnings	$	151.9	92.0	$	1.65	$	153.3	96.3	$	1.59	$	299.2	92.5	$	3.24	$	314.9	96.8	$	3.25
Dilutive effect of employee  stock options and awards	—		1.1			—		1.0			—		1.0			—		1.1
Effect of convertible debt	—		0.6			—		0.7			—		0.6			—		0.7
Diluted earnings per share:
Net earnings including impact of dilutive adjustments	$	151.9	93.7	$	1.62	$	153.3	98.0	$	1.56	$	299.2	94.1	$	3.18	$	314.9	98.6	$	3.19

Potential common shares not included in computation of diluted earnings per share

The following table summarizes the potential common shares not included in the computation of diluted earnings per share because their impact would have been antidilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2013	2012	2013	2012
Stock options	0.3	2.2	0.5	1.8

XML

DEBT (Credit Facilities) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013 Quarters	Jun. 30, 2013 Revolving Credit Facility [Member]	Jun. 30, 2013 Unsecured Debt [Member] Revolving Credit Facility [Member]	Dec. 21, 2011 Unsecured Debt [Member] Revolving Credit Facility [Member]	Jun. 30, 2013 Revolving Credit Facility [Member]	Dec. 31, 2012 Revolving Credit Facility [Member]	Jun. 30, 2013 Debt Covenant Requirement [Member]	Jun. 30, 2013 Scenario, Actual [Member]
Line of Credit Facility [Line Items]
Term for Revolving Credit Facility			5 years
Revolving Credit Facility, maximum borrowing capacity				$ 1,000.0
Line of Credit Facility, Amount Outstanding	225.0
Revolving Credit Facility, outstanding balance					$ 10.0	$ 0
Revolving Credit Facility, covenant terms		The Credit Agreement also contains limitations on aggregate subsidiary indebtedness and a debt covenant that requires that the Company maintain on the last day of any period of four consecutive fiscal quarters, in each case taken as one accounting period, a ratio of total debt to consolidated EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) of not more than 3.0 to 1.0.
Revolving Credit Facility, covenant compliance	The Company was in compliance with all covenants in the Credit Agreement at June 30, 2013.
Debt covenant, requirement for number of consecutive fiscal quarters	4
Debt to EBITDA (leverage) ratio	1.95						3	0
Revolving Credit Facility, interest rate at period end		1.24%

XML

BUSINESS ACQUISITIONS (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Goodwill	$ 2,986.6		$ 2,901.7	$ 2,681.8
Cash payments for laboratory-related assets	$ 90.5	$ 68.3

XML

GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 20.5	$ 20.6	$ 40.0	$ 42.0
Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense, 2012	44.5		44.5
Estimated amortization expense, 2013	80.7		80.7
Estimated amortization expense, 2014	77.2		77.2
Estimated amortization expense, 2015	71.9		71.9
Estimated amortization expense, 2016	64.5		64.5
Estimated amortization expense, Thereafter	530.1		530.1
Canadian licenses, value	$ 701.4		$ 701.4		$ 743.3

XML

RESTRUCTURING AND OTHER SPECIAL CHARGES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Net restructuring charges		$ 14.1	$ 0.2
Reduction in prior employee severance benefits related restructuring accruals		0.6	4.8
Reduction in prior facility related restructuring accruals		1.7	2.9
Restructuring charges related to severance and other employee costs		10.1	6.2
Restructuring charges related to contractual obligations associated with leased facilities and other facility related costs		6.3	1.3
Reduction in total prior restructuring accruals		(2.3)
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 6.9

XML

RESTRUCTURING RESERVES (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	$ 27.6
Restructuring charges	16.4
Reduction of prior restructuring accruals	(2.3)
Cash payments and other adjustments	(14.3)
Balance, end of period	27.4
Current	8.7
Non-current	18.7
Total Restructuring Reserve	27.4
Severance and Other Employee Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	1.4
Restructuring charges	10.1
Reduction of prior restructuring accruals	(0.6)
Cash payments and other adjustments	(9.6)
Balance, end of period	1.3
Total Restructuring Reserve	1.3
Lease and Other Facility Costs [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	26.2
Restructuring charges	6.3
Reduction of prior restructuring accruals	(1.7)
Cash payments and other adjustments	(4.7)
Balance, end of period	26.1
Total Restructuring Reserve	$ 26.1

XML

DEBT

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Debt

DEBT

Short-term borrowings and the current portion of long-term debt at June 30, 2013 and December 31, 2012 consisted of the following:

	June 30, 2013		December 31, 2012
Zero-coupon convertible subordinated notes	$	109.9	$	130.0
Revolving credit facility	10.0		—
Senior notes due 2013	—		350.0
Total short-term borrowings and current portion of long-term debt	$	119.9	$	480.0

Long-term debt at June 30, 2013 and December 31, 2012 consisted of the following:

	June 30, 2013		December 31, 2012
5 5/8% senior notes due 2015	$	250.0	$	250.0
3 1/8% senior notes due 2016	325.0		325.0
2 1/5% senior notes due 2017	500.0		500.0
4 5/8% senior notes due 2020	600.0		600.0
3 3/4% senior notes due 2022	500.0		500.0
Revolving credit facility	215.0		—
Total long-term debt	$	2,390.0	$	2,175.0

Senior Notes

On August 23, 2012, the Company issued $1,000.0 in new senior notes pursuant to the Company's effective shelf registration statement on Form S-3. The new senior notes consisted of $500.0 aggregate principal amount of 2.20% Senior Notes due 2017 and $500.0 aggregate principal amount of 3.75% Senior Notes due 2022. The net proceeds were used to repay $625.0 of the outstanding borrowings under the Company's Revolving Credit Facility (as defined below). The remaining proceeds were available for other general corporate purposes.

The Senior Notes due 2017 and Senior Notes due 2022 bear interest at the rate of 2.20% per annum and 3.75% per annum, respectively, payable semi-annually on February 23 and August 23 of each year, commencing February 23, 2013.

Zero-coupon Subordinated Notes

During the six months endedJune 30, 2013, the Company settled notices to convert $25.3 aggregate principal amount at maturity of its zero-coupon subordinated notes with a conversion value of $31.6. The total cash used for these settlements was $21.3 and the Company also issued 0.1 additional shares of common stock.

On March 11, 2013, the Company announced that for the period of March 12, 2013 to September 11, 2013, the zero-coupon subordinated notes will accrue contingent cash interest at a rate of no less than 0.125% of the average market price of a zero-coupon subordinated note for the five trading days ended March 6, 2013, in addition to the continued accrual of the original issue discount.

On July 1, 2013, the Company announced that its zero-coupon subordinated notes may be converted into cash and common stock at the conversion rate of 13.4108 per $1,000 principal amount at maturity of the notes, subject to the terms of the zero-coupon subordinated notes and the Indenture, dated as of October 24, 2006 between the Company and The Bank of New York Mellon, as trustee and conversion agent. In order to exercise the option to convert all or a portion of the zero-coupon subordinated notes, holders are required to validly surrender their zero-coupon subordinated notes at any time during the calendar quarter beginning July 1, 2013, through the close of business on the last business day of the calendar quarter, which is 5:00 p.m., New York City time, on Monday, September 30, 2013. If notices of conversion are received, the Company plans to settle the cash portion of the conversion obligation with cash on hand and/or borrowings under the revolving credit facility (as defined below).

Credit Facilities

On December 21, 2011, the Company entered into a Credit Agreement (the "Credit Agreement") providing for a five-year $1,000.0 senior unsecured revolving credit facility (the “Revolving Credit Facility”) with Bank of America, N.A., acting as Administrative Agent, Barclays Capital as Syndication Agent, and a group of financial institutions as lending parties. The balances outstanding on the Company's Revolving Credit Facility at June 30, 2013 and December 31, 2012 were $225.0 and $0.0, respectively. The Revolving Credit Facility bears interest at varying rates based upon a base rate or LIBOR plus (in each case) a percentage based on the Company's debt rating with Standard & Poor's and Moody's Ratings Services.

The Revolving Credit Facility is available for general corporate purposes, including working capital, capital expenditures, acquisitions, funding of share repurchases and other restricted payments permitted under the Credit Agreement. The Credit Agreement also contains limitations on aggregate subsidiary indebtedness and a debt covenant that requires that the Company maintain on the last day of any period of four consecutive fiscal quarters, in each case taken as one accounting period, a ratio of total debt to consolidated EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) of not more than 3.0 to 1.0.The Company was in compliance with all covenants in the Credit Agreement at June 30, 2013. As of June 30, 2013, the ratio of total debt to consolidated EBITDA was 1.95 to 1.0.

    As of June 30, 2013, the effective interest rate on the Revolving Credit Facility was 1.24%.

XML

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

6 Months Ended

Jun. 30, 2013

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

	Six Months Ended June 30,
	2013		2012
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	54.6	$	39.8
Income taxes, net of refunds	164.3		163.7
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	$	10.3	$	—

XML

DEBT (Senior Notes) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Aug. 23, 2012
Debt Instrument [Line Items]
Senior notes, noncurrent		$ 1,000.0
Senior notes due 2022 [Member]
Debt Instrument [Line Items]
Senior notes, noncurrent		500.0
Stated interest rate percentage	3.75%	3.75%
Senior notes due 2017 [Member]
Debt Instrument [Line Items]
Senior notes, noncurrent		500.0
Stated interest rate percentage	2.20%	2.20%
Proceeds used to repay revolving credit facility [Member]
Debt Instrument [Line Items]
Senior notes, noncurrent		$ 625.0

XML

COMMITMENTS AND CONTINGENCIES

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

The Company is involved from time to time in various claims and legal actions, including arbitrations, class actions, and other litigation (including those described in more detail below), arising in the ordinary course of business. Some of these actions involve claims that are substantial in amount. These matters include, but are not limited to, intellectual property disputes, professional liability, employee related matters, and inquiries, including subpoenas and other civil investigative demands, from governmental agencies and Medicare or Medicaid payers and managed care payers reviewing billing practices or requesting comment on allegations of billing irregularities that are brought to their attention through billing audits or third parties. The Company receives civil investigative demands or other inquiries from various governmental bodies in the ordinary course of its business. Such inquiries can relate to the Company or other healthcare providers. The Company works cooperatively to respond to appropriate requests for information.

The Company is also named from time to time in suits brought under the qui tam provisions of the False Claims Act and comparable state laws. These suits typically allege that the Company has made false statements and/or certifications in connection with claims for payment from federal or state health care programs. They may remain under seal (hence, unknown to the Company) for some time while the government decides whether to intervene on behalf of the qui tam plaintiff. Such claims are an inevitable part of doing business in the health care field today.

The Company believes that it is in compliance in all material respects with all statutes, regulations and other requirements applicable to its clinical laboratory operations. The clinical laboratory testing industry is, however, subject to extensive regulation, and the courts have not interpreted many of these statutes and regulations. There can be no assurance, therefore, that those applicable statutes and regulations will not be interpreted or applied by a prosecutorial, regulatory or judicial authority in a manner that would adversely affect the Company. Potential sanctions for violation of these statutes and regulations include significant fines and the loss of various licenses, certificates and authorizations.

Many of the claims and legal actions against the Company are at preliminary stages, and many of these cases seek an indeterminate amount of damages. The Company records an aggregate legal reserve, which is determined using actuarial calculations around historical loss rates and assessment of trends experienced in settlements and defense costs. In accordance with ASC 450 “Contingencies”, the Company establishes reserves for judicial, regulatory, and arbitration matters outside the aggregate legal reserve if and when those matters present loss contingencies that are both probable and estimable and would exceed the aggregate legal reserve. When loss contingencies are not both probable and estimable, the Company does not establish separate reserves.

The Company is unable to estimate a range of reasonably probable loss for cases described in more detail below in which damages either have not been specified or, in the Company's judgment, are unsupported and/or exaggerated and (i) the proceedings are in early stages; (ii) there is uncertainty as to the outcome of pending appeals or motions; (iii) there are significant factual issues to be resolved; and/or (iv) there are novel legal issues to be presented. For these cases, however, the Company does not believe, based on currently available information, that the outcomes of these proceedings will have a material adverse effect on the Company's financial condition, though the outcomes could be material to the Company's operating results for any particular period, depending, in part, upon the operating results for such period.

As previously reported, the Company reached a settlement in the previously disclosed lawsuit, California ex rel. HunterLaboratories, LLC et al. v. Quest Diagnostics Incorporated, et al. ("Hunter Labs Settlement Agreement"), to avoid the uncertainty and costs associated with prolonged litigation. Pursuant to the executed settlement agreement, the Company recorded a litigation settlement expense of $34.5 in the second quarter of 2011 (net of a previously recorded reserve of $15.0) and paid the settlement amount of $49.5 in the third quarter of 2011. The Company also agreed to certain reporting obligations regarding its pricing for a limited time period and, at the option of the Company in lieu of such reporting obligations, to provide Medi-Cal with a discount from Medi-Cal's otherwise applicable maximum reimbursement rate from November 1, 2011 through October 31, 2012. In June of 2012, the California legislature enacted Assembly Bill No. 1494, Section 9 of which directs the Department of Health Care Services ("DHCS") to establish new reimbursement rates for Medi-Cal clinical laboratory services that will be based on payments made to California clinical laboratories for similar services by other third-party payers. With stakeholder input, DHCS established data elements and a format for laboratories to report payment data from comparable third-party payers. After reviewing the submitted data, DHCS will propose new reimbursement rates and solicit stakeholder input before their implementation. The bill provides that until the new rates are set through this process, Medi-Cal payments for clinical laboratory services will be reduced (in addition to a 10% payment reduction imposed by statute in 2011) by “up to 10 percent” for tests with dates of service on or after July 1, 2012, with a cap on payments set at 80% of the lowest maximum allowance established under the federal Medicare program. Under the terms of the Hunter Labs Settlement Agreement, the enactment of this new California legislation terminates the Company's reporting obligations (or obligation to provide a discount in lieu of reporting) under that agreement. Taken together, these changes are not expected to have a material impact on the Company's consolidated revenues or results of operations.

As previously reported, the Company responded to an October 2007 subpoena from the United States Department of Health & Human Services Office of Inspector General's regional office in New York. On August 17, 2011, the Southern District of New York unsealed a False Claims Act lawsuit, United States of America ex rel. NPT Associates v. Laboratory Corporation of America Holdings, which alleges that the Company offered UnitedHealthcare kickbacks in the form of discounts in return for Medicare business. The Plaintiff's third amended complaint further alleges that the Company's billing practices violated False Claims Acts in fourteen states and the District of Columbia. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. Neither the United States government nor any state government has intervened in the lawsuit. The Company will vigorously defend the lawsuit.

In addition, the Company has received three other subpoenas since 2007 related to Medicaid billing. In February 2009, the Company received a subpoena from the Commonwealth of Virginia Office of the Attorney General requesting documents related to its billing to Virginia Medicaid. In April of 2013, the Commonwealth of Virginia Office of the Attorney General closed its investigation. In October 2009, the Company received a subpoena from the State of Michigan Department of Attorney General seeking documents related to its billing to Michigan Medicaid. In June 2010, the Company received a subpoena from the State of Florida Office of the Attorney General requesting documents related to its billing to Florida Medicaid. The Company is cooperating with these requests.

On May 2, 2013 the Company was served with a False Claims Act lawsuit, State of Georgia ex rel. Hunter Laboratories, LLC and Chris Reidel v. Quest Diagnostics Incorporated, et al., filed in the State Court of Fulton County, Georgia. The lawsuit, filed by a competitor laboratory, alleges that the Company overcharged Georgia's Medicaid program. The case has been removed to the United States District Court for the Northern District of Georgia. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. The government filed a notice declining to intervene in the case. The Company will vigorously defend the lawsuit.

In October 2011, a putative stockholder of the Company made a letter demand through his counsel for inspection of documents related to policies and procedures concerning the Company's Board of Directors' oversight and monitoring of the Company's billing and claim submission process. The letter also seeks documents prepared for or by the Board regarding allegations from the California ex rel. Hunter Laboratories, LLC et al. v. Quest Diagnostics Incorporated, et al., lawsuit and documents reviewed and relied upon by the Board in connection with the settlement of that lawsuit. The Company is responding to the request pursuant to Delaware law.

On November 18, 2011, the Company received a letter from United States Senators Baucus and Grassley requesting information regarding the Company's relationships with its largest managed care customers. The letter requests information about the Company's contracts and financial data regarding its managed care customers. Company representatives met with Senate Finance Committee staff after receiving the request and subsequently produced documents in response. The Company continues to cooperate with the request for information.

On February 27, 2012, the Company was served with a False Claims Act lawsuit, United States ex rel. Margaret Brown v. Laboratory Corporation of America Holdings and Tri-State Clinical Laboratory Services, LLC, filed in the United States District Court for the Southern District of Ohio, Western Division. The lawsuit alleges that the defendants submitted false claims for payment for laboratory testing services performed as a result of financial relationships that violated the federal Stark and anti-kickback laws. The Company owned 50% of Tri-State Clinical Laboratory Services, LLC, which was dissolved in June of 2011. The lawsuit seeks actual and treble damages and civil penalties for each alleged false claim, as well as recovery of costs, attorney's fees, and legal expenses. The United States government has not intervened in the lawsuit. The Company will vigorously defend the lawsuit.

On June 7, 2012, the Company was served with a putative class action lawsuit, Yvonne Jansky v. Laboratory Corporation of America, et al., filed in the Superior Court of the State of California, County of San Francisco. The lawsuit alleges that the defendants committed unlawful and unfair business practices, and violated various other state laws by changing screening codes to diagnostic codes on laboratory test orders, thereby resulting in customers being responsible for co-payments and other debts. The lawsuit seeks injunctive relief, actual and punitive damages, as well as recovery of attorney's fees, and legal expenses. The Company will vigorously defend the lawsuit.

On June 7, 2012, the Company was served with a putative class action lawsuit, Ann Baker Pepe v. Genzyme Corporation and Laboratory Corporation of America Holdings, filed in the United States District Court for the District of Massachusetts. The lawsuit alleges that the defendants failed to preserve DNA samples allegedly entrusted to the defendants and thereby breached a written agreement with plaintiff and violated state laws. The lawsuit seeks injunctive relief, actual, double and treble damages, as well as recovery of attorney's fees and legal expenses. The Company will vigorously defend the lawsuit.

On August 24, 2012, the Company was served with a putative class action lawsuit, Sandusky Wellness Center, LLC, et al. v. MEDTOX Scientific, Inc., et al., filed in the United States District Court for the District of Minnesota. The lawsuit alleges that on or about February 21, 2012, the defendants violated the federal Telephone Consumer Protection Act by sending unsolicited facsimiles to Plaintiff and more than 39 other recipients without the recipients' prior express invitation or permission. The lawsuit seeks actual damages or the sum of $0.0005 for each violation, whichever is greater, and injunctive relief. The Company will vigorously defend the lawsuit.

The Company is a defendant in two putative class actions related to overtime pay. On July 8, 2013, a putative class action, Christine Bohlander v. Laboratory Corporation of America, et al., was filed against the Company in the Superior Court of the State of California for the County of Solano, alleging on behalf of similarly situated phlebotomists that the Company failed to pay overtime, failed to provide meal and rest breaks, and committed other violations of the California Labor Code. The complaint seeks monetary damages, civil penalties, costs, injunctive relief, and attorney's fees. On July 8, 2013, a putative class action, Jemuel Andres, et al. v. Laboratory Corporation of America Holdings, was filed against the Company in the Superior Court of California for the County of Los Angeles, alleging on behalf of similarly situated couriers that the Company failed to pay overtime, failed to provide meal and rest breaks, and committed other violations of the California Labor Code. The complaint seeks monetary damages, civil penalties, costs, injunctive relief, and attorney's fees. The Company intends to vigorously defend both cases.

Under the Company's present insurance programs, coverage is obtained for catastrophic exposure as well as those risks required to be insured by law or contract. The Company is responsible for the uninsured portion of losses related primarily to general, professional and vehicle liability, certain medical costs and workers' compensation. The self-insured retentions are on a per occurrence basis without any aggregate annual limit. Provisions for losses expected under these programs are recorded based upon the Company's estimates of the aggregated liability of claims incurred. As of June 30, 2013, the Company had provided letters of credit aggregating approximately $38.0, primarily in connection with certain insurance programs. The Company's availability under its Revolving Credit Facility is reduced by the amount of these letters of credit.

XML

GOODWILL AND INTANGIBLE ASSETS

6 Months Ended

Jun. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

GOODWILL AND INTANGIBLE ASSETS

The changes in the carrying amount of goodwill for the six month period ended June 30, 2013 and for the year ended December 31, 2012 are as follows:

	June 30, 2013			December 31, 2012
Balance as of January 1	$	2,901.7		$	2,681.8
Goodwill acquired during the period	85.6			224.5
Adjustments to goodwill	(0.7		)	(4.6		)
Balance at end of period	$	2,986.6		$	2,901.7

The components of identifiable intangible assets are as follows:

	June 30, 2013							December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships	$	1,314.1	$	(514.2	)	$	799.9	$	1,296.1	$	(483.3	)	$	812.8
Patents, licenses and technology	117.2		(81.4		)	35.8		117.2		(76.2		)	41.0
Non-compete agreements	38.8		(22.4		)	16.4		32.3		(19.6		)	12.7
Trade names	131.0		(78.2		)	52.8		131.3		(73.4		)	57.9
Canadian licenses	701.4		—			701.4		743.3		—			743.3
	$	2,302.5	$	(696.2	)	$	1,606.3	$	2,320.2	$	(652.5	)	$	1,667.7

Amortization of intangible assets for the three month periods endedJune 30, 2013 and 2012 was $20.5 and $20.6, respectively. Amortization expense for the net carrying amount of intangible assets is estimated to be $44.5 for the remainder of fiscal 2013, $80.7 in fiscal 2014, $77.2 in fiscal 2015, $71.9 in fiscal 2016, $64.5 in fiscal 2017 and $530.1 thereafter.

The Ontario operation had $701.4 and $743.3 of value assigned to the partnership’s indefinite lived Canadian licenses to conduct diagnostic testing services in the province as of June 30, 2013 and December 31, 2012, respectively.

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net earnings	$ 300.0	$ 315.8
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	112.4	112.8
Stock compensation	22.1	23.7
Loss on sale of assets	0.7	6.4
Accrued interest on zero-coupon subordinated notes	1.2	1.3
Cumulative earnings in excess of distributions from equity method investments	(3.7)	(3.3)
Deferred income taxes	28.3	33.3
Change in assets and liabilities (net of effects of acquisitions):
Increase in accounts receivable (net)	(99.7)	(35.0)
Increase in inventories	(5.7)	(3.3)
Decrease in prepaid expenses and other	(0.9)	11.5
Decrease in accounts payable	16.9	(23.3)
Increase (decrease) in accrued expenses and other	(35.8)	(56.5)
Net cash provided by operating activities	335.8	383.4
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(90.5)	(68.3)
Proceeds from sale of assets	0.4	1.5
Deferred payments on acquisitions	(2.0)	(2.7)
Acquisition of licensing technology	0	(2.0)
Investments in equity affiliates	(3.3)	(4.9)
Acquisition of businesses, net of cash acquired	(104.2)	(25.2)
Net cash used for investing activities	(199.6)	(101.6)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facilities	255.0	85.0
Payments on revolving credit facilities	(30.0)	(195.0)
Payments on zero-coupon subordinated notes	(21.3)	(2.5)
Payments on long-term debt	(350.0)	0
Noncontrolling interest distributions	(0.4)	(0.7)
Excess tax benefits from stock based compensation	7.9	5.7
Conversion of zero-coupon convertible debt	4.7	0
Net proceeds from issuance of stock to employees	131.1	43.4
Purchase of common stock	(479.2)	(252.6)
Net cash provided by (used for) financing activities	(486.9)	(316.7)
Effect of exchange rate changes on cash and cash equivalents	(4.8)	0
Net increase (decrease) in cash and cash equivalents	(355.5)	(34.9)
Cash and cash equivalents at beginning of period	466.8	159.3
Cash and cash equivalents at end of period	$ 111.3	$ 124.4

XML

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) (USD $)	6 Months Ended
	Jun. 30, 2013 Embedded_Derivative_Instruments	Jun. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Number of features considered to be embedded derivative instruments	2
Minimum percentage of market price to calculated value of zero-coupon subordinated debt at which the entity is subject to contingent cash interest	120.00%
Embedded derivative, fair value	$ 0
Embedded derivative, impact on condensed consolidated statements of operations	$ 0	$ 0

XML

INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Minimum threshold percentage required to recognize income tax benefit (in hundredths)	50.00%
Gross unrecognized income tax benefits	$ 37.8	$ 36.4
Unrecognized income tax benefits that would impact effective tax rate	37.4	37.1
Accrued interest and penalties related to unrecognized income tax benefits	11.1	9.8
Valuation allowance provided for deferred tax assets	$ 18.6	$ 18.4

XML

EARNINGS PER SHARE (Potential common shares not included in computation of diluted earnings per share) (Details) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Mar. 31, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Stock options (in shares)	0.3	2.2	0.5	1.8

XML

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

6 Months Ended

Jun. 30, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments And Hedging Activities

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

The Company addresses its exposure to market risks, principally the market risk associated with changes in interest rates, through a controlled program of risk management that includes, from time to time, the use of derivative financial instruments such as interest rate swap agreements (see Interest Rate Swap section below). Although the Company’s zero-coupon subordinated notes contain features that are considered to be embedded derivative instruments (see Embedded Derivative section below), the Company does not hold or issue derivative financial instruments for trading purposes. The Company does not believe that its exposure to market risk is material to the Company’s financial position or results of operations.

Embedded Derivatives Related to the Zero-Coupon Subordinated Notes

The Company’s zero-coupon subordinated notes contain the following two features that are considered to be embedded derivative instruments under authoritative guidance in connection with accounting for derivative instruments and hedging activities:

1) The Company will pay contingent cash interest on the zero-coupon subordinated notes after September 11, 2006, if the average market price of the notes equals 120% or more of the sum of the issue price, accrued original issue discount and contingent additional principal, if any, for a specified measurement period.

2) Holders may surrender zero-coupon subordinated notes for conversion during any period in which the rating assigned to the zero-coupon subordinated notes by Standard & Poor’s Ratings Services is BB- or lower.

The Company believes these embedded derivatives had no fair value at June 30, 2013 and December 31, 2012. These embedded derivatives also had no impact on the condensed consolidated statements of operations for the six months endedJune 30, 2013 and 2012.

XML

INCOME TAXES

6 Months Ended

Jun. 30, 2013

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The Company does not recognize a tax benefit, unless the Company concludes that it is more likely than not that the benefit will be sustained on audit by the taxing authority based solely on the technical merits of the associated tax position. If the recognition threshold is met, the Company recognizes a tax benefit measured at the largest amount of the tax benefit that the Company believes is greater than 50.0% likely to be realized.

The gross unrecognized income tax benefits were $37.8 and $36.4 at June 30, 2013 and December 31, 2012, respectively. It is anticipated that the amount of the unrecognized income tax benefits will change within the next twelve months; however, these changes are not expected to have a significant impact on the results of operations, cash flows or the financial position of the Company.

As of June 30, 2013 and December 31, 2012, $37.4 and $37.1, respectively, are the approximate amounts of unrecognized income tax benefits that, if recognized, would favorably affect the effective income tax rate in future periods.

The Company recognizes interest and penalties related to unrecognized income tax benefits in income tax expense. Accrued interest and penalties related to uncertain tax positions totaled $11.1 and $9.8 as of June 30, 2013 and December 31, 2012, respectively.

The valuation allowance provided as a reserve against certain deferred tax assets is $18.6 and $18.4 at June 30, 2013 and December 31, 2012, respectively.

The Company has substantially concluded all U.S. federal income tax matters for years through 2011. Substantially all material state and local, and foreign income tax matters have been concluded through 2007 and 2001, respectively.

The Internal Revenue Service concluded its examination of the Company's 2011 and 2010 federal income tax returns during the second quarter of 2013. The Company has various state income tax examinations ongoing throughout the year. In October 2011, Canada Revenue Agency initiated an examination of the Company's Canadian income tax returns for 2010 and 2009. Management believes adequate provisions have been recorded related to all open tax years.

XML

BUSINESS SEGMENT INFORMATION Business Segment information (Notes)

6 Months Ended

Jun. 30, 2013

Segment Reporting Information [Line Items]

Segment Reporting Disclosure [Text Block]

BUSINESS SEGMENT INFORMATION

The following table is a summary of segment information for the three and six months ended June 30, 2013 and 2012. Segment asset information is not presented because it is not used by the chief operating decision maker at the operating segment level. Operating earnings (loss) of each segment represents net revenues less directly identifiable expenses to arrive at operating income for the segment. General management and administrative corporate expenses are included in general corporate expenses below. The accounting policies of the segments are the same as those of the Company as set forth in Note 1 to the Consolidated Financial Statements contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2012 and Note 1 above to the interim consolidated financial statements.

Clinical diagnostics laboratory segment includes financial information related to the broad range of testing services that are reported primarily through the United States business operations. The other reportable segment includes the portion of the Company's non-United States clinical diagnostic laboratory operations which are reviewed separately by corporate management for the purposes of allocation of resources.

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
Net revenues:
Clinical diagnostics laboratory	$	1,381.6		$	1,339.6		$	2,735.6		$	2,680.1
Other	86.6			83.8			173.5			166.6
Total net revenues	$	1,468.2		$	1,423.4		$	2,909.1		$	2,846.7
Operating earnings (loss):
Clinical diagnostics laboratory	$	380.1		$	380.5		$	754.3		$	767.6
Other	23.2			25.8			47.7			51.8
General corporate expenses	(134.0		)	(130.3		)	(270.7		)	(256.3		)
Total operating income	269.3			276.0			531.3			563.1
Non-operating expenses, net	19.3			19.8			39.9			37.3
Earnings before income taxes	$	250.0		$	256.2		$	491.4		$	525.8
Provision for income taxes	97.7			102.4			191.4			210.0
Net earnings	152.3			153.8			300.0			315.8
Less income attributable to noncontrolling interests	(0.4		)	(0.5		)	(0.8		)	(0.9		)
Net income attributable to Laboratory Corporation of America Holdings	$	151.9		$	153.3		$	299.2		$	314.9

XML

SUPPLEMENTAL CASH FLOW INFORMATION

6 Months Ended

Jun. 30, 2013

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

SUPPLEMENTAL CASH FLOW INFORMATION

	Six Months Ended June 30,
	2013		2012
Supplemental schedule of cash flow information:
Cash paid during period for:
Interest	$	54.6	$	39.8
Income taxes, net of refunds	164.3		163.7
Disclosure of non-cash financing and investing activities:
Conversion of zero-coupon convertible debt	$	10.3	$	—

XML

Document and Entity Information Document In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jul. 26, 2013
Document Information [Line Items]
Entity Registrant Name	LABORATORY CORP OF AMERICA HOLDINGS
Entity Central Index Key	0000920148
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		90.1

XML

BUSINESS ACQUISITIONS

6 Months Ended

Jun. 30, 2013

Business Acquisitions [Abstract]

Business Combination Disclosure [Text Block]

14. BUSINESS ACQUISITIONS

During the six month period ended June 30, 2013, the Company acquired various laboratories and related assets for approximately $104.2 in cash (net of cash acquired). The purchase consideration for these acquisitions has been allocated to the estimated fair market value of the net assets acquired, including approximately $24.2 in identifiable intangible assets (primarily customer relationships and non-compete agreements) and a residual amount of goodwill of approximately $85.6. These acquisitions were made primarily to extend the Company's geographic reach in important market areas and/or enhance the Company's scientific differentiation and esoteric testing capabilities.