We account for revenue from contracts with customers in accordance with Accounting Standards Codification ("ASC") 606, Revenue from Contracts with Customers, and as such, we recognize revenue in the period in which we satisfy our performance obligations under our contracts by transferring our promised services to our customers in amounts that reflect the consideration to which we expect to be entitled in exchange for providing patient care, which are the transaction prices allocated to the distinct services. Our cost of obtaining contracts is not material.

Revenues are recognized as performance obligations are satisfied, which varies based on the nature of the services provided. Our performance obligation is the delivery of patient care services in accordance with the nature and frequency of services outlined in physicians' orders, which are determined by a physician based on a patient's specific goals.

Our performance obligations relate to contracts with a duration of less than one year; therefore, we have elected to apply the optional exemption provided by ASC 606 and are not required to disclose the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied or partially unsatisfied as of the end of the reporting period. The unsatisfied or partially unsatisfied performance obligations are generally completed when the patients are discharged, which generally occurs within days or weeks of the end of the reporting period.

We determine the transaction price based on gross charges for services provided, reduced by estimates for contractual and non-contractual revenue adjustments. Contractual revenue adjustments are recorded for the difference between our standard rates and the contracted rates to be realized from patients, third-party payors and others for services provided. Non-contractual revenue adjustments include discounts provided to self-pay, uninsured patients or other payors, adjustments resulting from payment reviews and adjustments arising from our inability to obtain appropriate billing documentation, authorizations or face-to-face documentation. Subsequent changes to the estimate of the transaction price are recorded as adjustments to net service revenue in the period of change.

Non-contractual revenue adjustments are recorded for self-pay, uninsured patients and other payors by major payor class based on our historical collection experience, aged accounts receivable by payor and current economic conditions. The non-contractual revenue adjustments represent the difference between amounts billed and amounts we expect to collect based on our collection history with similar payors. We assess our ability to collect for the healthcare services provided at the time of patient admission based on our verification of the patient's insurance coverage under Medicare, Medicaid, and other commercial or managed care insurance programs. Medicare represented approximately 75% of our consolidated net service revenue for the three-month periods ended March 31, 2022 and 2021.

Amounts due from third-party payors, primarily commercial health insurers and government programs (Medicare and Medicaid), include variable consideration for retroactive revenue adjustments due to settlements of audits and payment reviews. We determine our estimates for non-contractual revenue adjustments related to audits and payment reviews based on our historical experience and success rates in the claim appeals and adjudication process.

We determine our estimates for non-contractual revenue adjustments related to our inability to obtain appropriate billing documentation, authorizations, or face-to-face documentation based on our historical experience which primarily includes a historical collection rate of over 99% on Medicare claims. Revenue is recorded at amounts we estimate to be realizable for services provided.

Revenue by payor class as a percentage of total net service revenue is as follows:


	For the Three-Month Periods Ended March 31,
	2022		2021
Home Health:
Medicare	41	%	41	%
Non-Medicare - Episodic-based	8	%	7	%
Non-Medicare - Non-episodic based	12	%	13	%
Hospice:
Medicare	34	%	34	%
Non-Medicare	2	%	2	%
Personal Care	3	%	3	%
High Acuity Care (1)	< 1%		—	%
	100	%	100	%

Effective January 1, 2020, the Centers for Medicare and Medicaid Services ("CMS") implemented a revised case-mix adjustment methodology, the Patient-Driven Groupings Model ("PDGM"), to better align payment with patient care needs and ensure that clinically complex and ill beneficiaries have adequate access to home health care. PDGM uses 30-day periods of care rather than 60-day episodes of care as the unit of payment, eliminates the use of the number of therapy visits provided in determining payment and relies more heavily on clinical characteristics and other patient information.

All Medicare contracts are required to have a signed plan of care which represents a single performance obligation, comprised of the delivery of a series of distinct services that are substantially similar and have a similar pattern of transfer to the customer. Accordingly, we account for the series of services ("episode") as a single performance obligation satisfied over time, as the customer simultaneously receives and consumes the benefits of the goods and services provided. An episode starts the first day a billable visit is performed and ends 60 days later or upon discharge, if earlier, with multiple continuous episodes allowed. Each 60-day episode includes two 30-day payment periods.

Net service revenue is recorded based on the established Federal Medicare home health payment rate for a 30-day period of care. ASC 606 notes that if an entity has a right to consideration from a customer in an amount that corresponds directly with the value of the entity’s performance completed to date, the entity may recognize revenue in the amount to which the entity has a right to invoice. We have elected to apply the "right to invoice" practical expedient and therefore, our revenue recognition is based on the reimbursement we are entitled to for each 30-day payment period. We utilize our historical average length of stay for each 30-day period of care as the measure of progress towards the satisfaction of our performance obligation.

PDGM uses timing, admission source, functional impairment levels and principal and other diagnoses to case-mix adjust payments. The case-mix adjusted payment for a 30-day period of care is subject to additional adjustments based on certain variables, including, but not limited to (a) an outlier payment if our patient's care was unusually costly (capped at 10% of total reimbursement per provider number); (b) a low utilization payment adjustment (“LUPA”) if the number of visits provided was less than the established threshold, which ranges from two to six visits and varies for every case-mix group; (c) a partial payment if a patient is transferred to another provider or from another provider before completing the 30-day period of care; and (d) the applicable geographic wage index. Payments for routine and non-routine supplies are included in the 30-day payment rate.

Medicare can also make various adjustments to payments received if we are unable to produce appropriate billing documentation or acceptable authorizations. We estimate the impact of such adjustments based on our historical experience, which primarily includes a historical collection rate of over 99% on Medicare claims, and record this estimate during the period in which services are rendered to revenue with a corresponding reduction to patient accounts receivable.

Amounts due from Medicare include variable consideration for retroactive revenue adjustments due to settlements of audits and payment reviews. We determine our estimates for non-contractual revenue adjustments related to audits and payment reviews based on our historical experience and success rates in the claim appeals and adjudication process.

The Medicare home health benefit requires that beneficiaries be homebound (meaning that the beneficiary is unable to leave his/her home without a considerable and taxing effort), require intermittent skilled nursing, physical therapy or speech therapy services, and receive treatment under a plan of care established and periodically reviewed by a physician. In order to provide greater flexibility during the novel coronavirus pandemic ("COVID-19"), CMS relaxed the definition of homebound status through the duration of the public health emergency. During the pandemic, a beneficiary is considered homebound if they have been instructed by a physician not to leave their home because of a confirmed or suspected COVID-19 diagnosis or if the patient has a condition that makes them more susceptible to contracting COVID-19. Therefore, if a beneficiary is homebound due to COVID-19 and requires skilled services, the services will be covered under the Medicare home health benefit.

Episodic-based Revenue. We recognize revenue in a similar manner as we recognize Medicare revenue for amounts that are paid by other insurance carriers, including Medicare Advantage programs; however, these amounts can vary based upon the negotiated terms, the majority of which range from 95% to 100% of Medicare rates.

Non-episodic based Revenue. Gross revenue is recorded on an accrual basis based upon the date of service at amounts equal to our established or estimated per-visit rates. Contractual revenue adjustments are recorded for the difference between our standard rates and the contracted rates to be realized from patients, third parties and others for services provided and are deducted from gross revenue to determine net service revenue. We also make non-contractual revenue adjustments to non-episodic revenue based on our historical experience to reflect the estimated transaction price. We receive a minimal amount of our net service revenue from patients who are either self-insured or are obligated for an insurance co-payment.

Gross revenue is recorded on an accrual basis based upon the date of service at amounts equal to the estimated payment rates. The estimated payment rates are predetermined daily or hourly rates for each of the four levels of care we deliver. The four levels of care are routine care, general inpatient care, continuous home care and respite care. Routine care accounted for 97% of our total Medicare hospice service revenue for the three-month periods ended March 31, 2022 and March 31, 2021. There are two separate payment rates for routine care: payments for the first 60 days of care and care beyond 60 days. In addition to the two routine rates, we may also receive a service intensity add-on (“SIA”). The SIA is based on visits made in the last seven days of life by a registered nurse or medical social worker for patients in a routine level of care.

We make adjustments to Medicare revenue for non-contractual revenue adjustments, which include our inability to obtain appropriate billing documentation or acceptable authorizations and other reasons unrelated to credit risk. We estimate the impact of these non-contractual revenue adjustments based on our historical experience, which primarily includes a historical collection rate of over 99% on Medicare claims, and record it during the period services are rendered.

Additionally, our hospice service revenue is subject to certain limitations on payments from Medicare which are considered variable consideration. We are subject to an inpatient cap limit and an overall Medicare payment cap for each provider number. We monitor these caps on a provider-by-provider basis and estimate amounts due back to Medicare if we estimate a cap has been exceeded. We record these adjustments as a reduction to revenue and an increase in accrued expenses within our condensed consolidated balance sheets. Providers are required to self-report and pay their estimated cap liability by February 28th of the following year. As of March 31, 2022, we have recorded $4.3 million for estimated amounts due back to Medicare in accrued expenses for the Federal cap years ended October 31, 2016 through September 30, 2022. As of December 31, 2021, we had recorded $4.5 million for estimated amounts due back to Medicare in accrued expenses for the Federal cap years ended October 31, 2016 through September 30, 2022.

Gross revenue is recorded on an accrual basis based upon the date of service at amounts equal to our established rates or estimated per day rates, as applicable. Contractual revenue adjustments are recorded for the difference between our standard rates and the contractual rates to be realized from patients, third-party payors and others for services provided and are deducted from gross revenue to determine our net service revenue. We also make non-contractual adjustments to non-Medicare revenue based on our historical experience to reflect the estimated transaction price.

We generate net service revenues by providing our services directly to patients based on authorized hours, visits or units determined by the relevant agency, at a rate that is either contractual or fixed by legislation. Net service revenue is recognized at the time services are rendered based on gross charges for the services provided, reduced by estimates for contractual and non-contractual revenue adjustments. We receive payment for providing such services from payors, including state and local governmental agencies, managed care organizations, commercial insurers and private consumers. Payors include the following elder service agencies: Aging Services Access Points ("ASAPs"), Senior Care Options ("SCOs"), Program of All-Inclusive Care for the Elderly ("PACE") and the Veterans Administration ("VA").

Our revenues are derived from contracts with (1) health insurance plans for the coordination and provision of home recovery care services to clinically-eligible patients who are enrolled members in those insurance plans and (2) health system partners for the coordination and provision of home recovery care services to clinically-eligible patients who are discharged early from a health system facility to complete their inpatient stay at home.

Under our health insurance plan contracts, we provide home recovery care services, which include hospital-equivalent ("H@H") and skilled nursing facility ("SNF") equivalent services ("SNF@H"), for high acuity care patients on a full risk basis whereby we assume the financial risk for the coordination and payment of all hospital or SNF replacement medical services necessary to treat the medical condition for which the patient was diagnosed in a home-based setting for a 30-day (H@H) or 60-day (SNF@H) episode of care in exchange for a fixed contracted bundled rate. For H@H programs, the fixed rate is based on the assigned diagnosis related group ("DRG") and the 30-day post-discharge related spend. For SNF@H programs, the fixed rate is based on the 60-day post-discharge related spend. Our performance obligation is the coordination and provision of patient care in accordance with physicians’ orders over either a 30-day or 60-day episode of care. The majority of our care coordination services and direct patient care is provided in the first five to seven days of the episode period (the "acute phase"). Monitoring services and follow-up direct patient care, as deemed necessary by the treating physician, are provided throughout the remainder of the episode. Since the majority of our services are provided during the acute phase, we recognize net service revenues over the acute phase based on gross charges for the services provided per the applicable managed care contract rates, reduced by estimates for revenue adjustments.

Under our contracts with health system partners, we provide home recovery care services for high acuity patients on a limited risk basis whereby we assume the risk for certain healthcare services during the remainder of an inpatient acute stay serviced at the patient’s home in exchange for a contracted per diem rate. The performance obligation is the coordination and provision of required medical services, as determined by the treating physician, for each day the patient receives inpatient-equivalent care at home. As such, revenues are recognized as services are administered and as our performance obligations are satisfied on a per diem basis, reduced by estimates for revenue adjustments.

We recognize adjustments to revenue during the period in which changes to estimates of assigned patient diagnoses or episode terminations become known, in accordance with the applicable managed care contracts. For certain health insurance plans, revenue is reduced by amounts owed by enrollees to healthcare providers under deductible, coinsurance or copay provisions of health insurance plan policies, since those amounts are repaid to the health insurance plans by us as part of a retrospective reconciliation process.

We account for government grants in accordance with Accounting Standards Update ("ASU") 2021-10, Government Assistance (Topic 832), by applying the grant model in accordance with International Accounting Standard ("IAS") 20, Accounting for Government Grants and Disclosure of Government Assistance, and as such, we recognize grant income on a systematic basis in line with the recognition of expenses or the loss of revenues for which the grants are intended to compensate. We recognize grants once both of the following conditions are met: (1) we are able to comply with the relevant conditions of the grant and (2) the grant will be received. See Note 3 - Novel Coronavirus Pandemic ("COVID-19") for additional information on our accounting for government funds received under the Coronavirus Aid, Relief and Economic Security Act ("CARES Act").

Cash and cash equivalents include certificates of deposit and all highly liquid debt instruments with maturities of three months or less when purchased. Restricted cash includes cash that is not available for ordinary business use. As of March 31, 2022 and December 31, 2021, we had $3.1 million of restricted cash that was placed into escrow accounts related to the indemnity and closing payment adjustment provisions within the purchase agreements for various acquisitions.

We report accounts receivable from services rendered at their estimated transaction price, which includes contractual and non-contractual revenue adjustments based on the amounts expected to be due from payors. Our patient accounts receivable are uncollateralized and consist of amounts due from Medicare, Medicaid, other third-party payors and patients. Our non-Medicare third-party payor base is comprised of a diverse group of payors that are geographically dispersed across the country. As of March 31, 2022, there is no single payor, other than Medicare, that accounts for more than 10% of our total outstanding patient receivables. Thus, we believe there are no other significant concentrations of receivables that would subject us to any significant credit risk in the collection of our patient accounts receivable. We write off accounts on a monthly basis once we have exhausted our collection efforts and deem an account to be uncollectible. We believe the collectability risk associated with our Medicare accounts, which represent 69% and 68% of our patient accounts receivable at March 31, 2022 and December 31, 2021, respectively, is limited due to our historical collection rate of over 99% from Medicare and the fact that Medicare is a U.S. government payor.

For our home health patients, our pre-billing process includes verifying that we are eligible for payment from Medicare for the services that we provide to our patients. Our Medicare billing begins with a process to ensure that our billings are accurate through the utilization of an electronic Medicare claim review. We bill Medicare following the end of each 30-day period of care or upon discharge, if earlier, for the services provided to the patient.

For our hospice patients, our pre-billing process includes verifying that we are eligible for payment from Medicare for the services that we provide to our patients. Our Medicare billing begins with a process to ensure that our billings are accurate through the utilization of an electronic Medicare claim review. We bill Medicare on a monthly basis for the services provided to the patient.

For our non-Medicare patients, our pre-billing process primarily begins with verifying a patient’s eligibility for services with the applicable payor. Once the patient has been confirmed for eligibility, we will provide services to the patient and bill the applicable payor. Our review and evaluation of non-Medicare accounts receivable includes a detailed review of outstanding balances and special consideration to concentrations of receivables from particular payors or groups of payors with similar characteristics that would subject us to any significant credit risk.

We account for acquisitions using the acquisition method of accounting in accordance with ASC 805, Business Combinations. Acquisitions are accounted for as purchases and are included in our condensed consolidated financial statements from their respective acquisition dates. Assets acquired, liabilities assumed and noncontrolling interests, if any, are measured at fair value on the acquisition date using the appropriate valuation method. Goodwill generated from acquisitions is recognized for the excess of the purchase price over tangible and identifiable intangible assets. In determining the fair value of identifiable intangible assets and noncontrolling interests, we use various valuation techniques including the income approach, the cost approach and the market approach. These valuation methods require us to make estimates and assumptions surrounding projected revenues and costs, growth rates and discount rates.

•Level 2 – Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Our deferred compensation plan assets are recorded at fair value and are considered a level 2 measurement. For our other financial instruments, including our cash and cash equivalents, patient accounts receivable, accounts payable, payroll and employee benefits and accrued expenses, we estimate the carrying amounts approximate fair value.

Net income per share attributable to Amedisys, Inc. common stockholders, calculated on the treasury stock method, is based on the weighted average number of shares outstanding during the period. The following table sets forth, for the periods indicated, shares used in our computation of weighted-average shares outstanding, which are used to calculate our basic and diluted net income attributable to Amedisys, Inc. common stockholders (amounts in thousands):


	For the Three- Month Periods Ended March 31,
	2022	2021
Weighted average number of shares outstanding - basic	32,555	32,780
Effect of dilutive securities:
Stock options	65	151
Non-vested stock and stock units	146	259
Weighted average number of shares outstanding - diluted	32,766	33,190
Anti-dilutive securities	188	42