8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

September 13, 2011

(Date of earliest event reported)

LABORATORY CORPORATION OF

AMERICA HOLDINGS

(Exact Name of Registrant as Specified in its Charter)

Delaware	1-11353	13-3757370
(State or other jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

358 South Main Street,
Burlington, North Carolina	27215	336-229-1127
(Address of principal executive offices)	(Zip Code)	(Registrant’s telephone number including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[  ]	Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[  ]	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
[  ]	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
[  ]	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01 Regulation FD Disclosure

On September 13, 2011, Laboratory Corporation of America® Holdings (LabCorp®) (NYSE: LH) announced that for the period of September 12, 2011 to March 11, 2012, its Zero Coupon Convertible Subordinated Notes due 2021 (Zero Coupon Notes) will, subject to the terms of the Zero Coupon Notes, accrue contingent cash interest at a rate of no less than 0.125% of the average market price of a Zero Coupon Note for the five trading days ended September 7, 2011, in addition to the continued accrual of the original issue discount. Contingent cash interest, which the Company has determined to be approximately $1.38 per Note, will be payable to holders of the Zero Coupon Notes as of the record date, which is February 24, 2012. The payment of contingent cash interest is expected to be made on March 11, 2012.

Exhibits

99.1 Press Release dated September 13, 2011

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 hereunto duly authorized.

LABORATORY CORPORATION OF AMERICA HOLDINGS

Registrant

By:	/s/ F. SAMUEL EBERTS III
	F. Samuel Eberts III
	Chief Legal Officer and Secretary

September 13, 2011

EX-99.1

Exhibit 99.1

	FOR IMMEDIATE RELEASE
Laboratory Corporation of America	Investor/Media Contact:
358 South Main Street	Stephen Anderson – 336-436-5274
Burlington, NC 27215	Company Information:  www.labcorp.com
Telephone:  (336) 584-5171

LABCORP'S ZERO COUPON CONVERTIBLE SUBORDINATED NOTES DUE 2021 TO

ACCRUE CONTINGENT INTEREST

Burlington, NC, September 13, 2011 -- Laboratory Corporation of America® Holdings (LabCorp®) (NYSE: LH) announced today that for the period of September 12, 2011 to March 11, 2012, its Zero Coupon Convertible Subordinated Notes due 2021 (Zero Coupon Notes) will, subject to the terms of the Zero Coupon Notes, accrue contingent cash interest at a rate of no less than 0.125% of the average market price of a Zero Coupon Note for the five trading days ended September 7, 2011, in addition to the continued accrual of the original issue discount. Contingent cash interest, which the Company has determined to be approximately $1.38 per Note, will be payable to holders of the Zero Coupon Notes as of the record date, which is February 24, 2012. The payment of contingent cash interest is expected to be made on March 11, 2012.

About LabCorp®

Laboratory Corporation of America® Holdings, an S&P 500 company, is a pioneer in commercializing new diagnostic technologies and the first in its industry to embrace genomic testing.  With annual revenues of $5.0 billion in 2010, over 31,000 employees worldwide, and more than 220,000 clients, LabCorp offers a broad test menu ranging from routine blood analyses to reproductive genetics to DNA sequencing. LabCorp furthers its scientific expertise and innovative clinical testing technology with its Centers of Excellence: The Center for Molecular Biology and Pathology, National Genetics Institute, ViroMed Laboratories, Inc., The Center for Esoteric Testing, Litholink Corporation, Genzyme GeneticsSM*, DIANON Systems, Inc., US LABS, Monogram Biosciences, Inc., and Esoterix and its Colorado Coagulation, Endocrine Sciences, and Cytometry Associates laboratories. LabCorp conducts clinical trials testing through its Esoterix Clinical Trials Services division. LabCorp clients include physicians, government agencies, managed care organizations, hospitals, clinical labs, and pharmaceutical companies. To learn more about our organization, visit our Web site at: www.labcorp.com.

*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.

This press release contains forward-looking statements. Each of the forward-looking statements is subject to change based on various important factors, including without limitation, competitive actions in the marketplace and adverse actions of governmental and other third-party payors.  Actual results could differ materially from those suggested by these forward-looking statements. Further information on potential factors that could affect LabCorp’s financial results is included in the Company’s Form 10-K for the year ended December 31, 2010, and subsequent SEC filings.

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