Editorial Note on Part 413
Editorial Note: Nomenclature changes to part 413 appear at 76 FR 50537, August 22, 2014.

§ 413.13 Amount of payment if customary charges for services furnished are less than reasonable costs. ( a ) *Definitions.* As used in this section— *Customary charges* means the regular rates that providers charge both beneficiaries and other paying patients for the services furnished to them.
*Fair compensation* means the reasonable cost of covered services.
*Nominal charge* means a charge equal to 60 percent or less of the reasonable cost of a service.
*Public provider* means a provider operated by a Federal, State, county, city, or other local government agency or instrumentality.
*Reasonable cost* means cost actually incurred, to the extent that cost is necessary for the efficient delivery of the service, and subject to the exclusions specified in paragraph (d) of this section.
( b ) *Application of the lesser of costs or charges (LCC) principle* — ( 1 ) *General rule.* Except as provided in paragraph (c) of this section, CMS pays providers the lesser of the reasonable cost or the customary charges for services furnished to Medicare beneficiaries. Reasonable cost and customary charges are compared separately for Part A services and Part B services.
( 2 ) *Example.* ( i ) A provider's reasonable cost for covered services furnished to Medicare beneficiaries during a cost reporting period is $125,000.
( ii ) The provider's customary charges for those services is $110,000.
( iii ) CMS pays the provider $110,000 less the deductible and coinsurance amounts for which the beneficiaries are responsible.
( c ) *Exceptions to the LCC principle* — ( 1 ) *Providers not subject to the LCC principle.* CMS pays the following providers the fair compensation for the services they furnish: ( i ) CORFs.
( ii ) Public providers that furnish services free of charge or at a nominal charge.
( iii ) Any provider that requests payment of fair compensation and can demonstrate to its contractor that a significant portion of its patients are low income and that its charges are less than costs because its customary practice is to charge patients on the basis of their ability to pay.
( 2 ) *Services not subject to the LCC principle.* The following services are not subject to the LCC principle: ( i ) *Part A inpatient hospital services.* Inpatient hospital services are not subject to the LCC principle if they are subject to either of the following: ( A ) The prospective payment system under part 412 of this chapter.
( B ) The rate of increase limits set forth in § 413.40.
( ii ) *Facility services related to ambulatory surgical procedures performed in outpatient hospital departments.* Facility services related to ambulatory surgical procedures performed in hospital outpatient departments are subject to the payment methodology set forth in § 413.118.
( iii ) *Services furnished by a critical access hospital (CAH).* Inpatient and outpatient services furnished by a CAH are subject to the payment methodology set forth in § 413.70.
( iv ) *Hospital outpatient radiology services.* Hospital outpatient radiology services are subject to the payment methodology set forth in § 413.122.
( v ) *Other diagnostic procedures performed by a hospital on an outpatient basis.* Other outpatient diagnostic procedures are subject to the payment methodology set forth in § 413.122.
( vi ) *Skilled nursing facility services.* Skilled nursing facility services subject to the payment methodology set forth in §§ 413.330 et seq.
( vii ) Services furnished by a rural emergency hospital (REH). Services furnished by a rural emergency hospital are subject to the payment methodology set forth in part 419, subpart J, of this chapter.
( d ) *Exclusions from reasonable cost.* For purposes of comparison with customary charges under this section, reasonable cost does not include the following: ( 1 ) Payments made to a provider as reimbursement for bad debts arising from noncollection of Medicare deductible and coinsurance amounts, as provided in § 413.89.
( 2 ) Amounts that represent the recovery of excess depreciation resulting from termination from the Medicare program or a decrease in Medicare utilization applicable to prior cost reporting periods, as provided in § 413.134.
( 3 ) Amounts that result from disposition of depreciable assets, applicable to prior cost reporting periods, as provided in § 413.134.
( 4 ) Payments to funds for the donated services of teaching physicians, as provided in § 413.85.
( 5 ) Except as provided in paragraph (f)(2)(iii) of this section for making nominal charge determinations in special situations, graduate medical education costs.
( e ) *Reductions in customary charges.* Customary charges are reduced in proportion to the ratio of the aggregate amount actually collected from charge-paying non-Medicare patients to the amount that would have been realized had customary charges been paid, if the provider— ( 1 ) Did not actually impose charges on most of the patients liable for payment for its services on a charge basis; or
( 2 ) Failed to make a reasonable effort to collect those charges.
( f ) *Nominal charge determinations.* In determining whether a provider's customary charges equal 60 percent or less of its reasonable costs, the following rules apply: ( 1 ) *General rule.* The determination is based on charges actually billed to charge-paying, non-Medicare patients, and (except for clinical diagnostic laboratory tests that are paid under section 1833(h) of the Act) is made separately for Part A services and Part B services.
( 2 ) *Determination in special situations.* ( i ) *Charges based on ability to pay.* For providers that have a sliding scale or discounted charges based on patients' ability to pay, the determination— ( A ) Is based on charges billed to all charge-paying patients;
( B ) Uses the ratio of the sliding scale charges to the provider's full customary charges; and
( C ) Applies the ratio to the discounted charges to equate those charges to customary charges.
( ii ) *HHA services.* In determining nominal charges for HHAs, all Part A and Part B services, with the exception of DME, are considered together.
( iii ) *Graduate medical education.* When making the nominal charge determination, graduate medical education payments (or the provider's reasonable costs for that education, if supported by appropriate data) are included in reasonable costs.
[65 FR 8661, Feb. 22, 2000, as amended at 70 FR 47487, Aug. 12, 2005; 87 FR 72287, Nov. 23, 2022]