A/B MAC (A) - Swing-bed - Inpatient Ancillary Claims -

100.4.2 - A/B MAC (A) - Swing-bed - Inpatient Ancillary Claims - Medicare Part B - Payment Policy (Rev. 1511; Issued: 05-23-08; Effective Date: 01-01-08; Implementation Date: 06- 23-08) The IHS providers are paid for covered inpatient Medicare Part B ancillary services based upon an all inclusive inpatient ancillary per diem rate (AIR). The AIR is established by CMS and IHS based upon a review of yearly cost reports prepared by IHS’s contractor. Upon completion of the review, IHS submits the agreed upon rate to the OMB for approval. Upon approval by OMB, IHS publishes the approved rate in the Federal Register. The AIR is established for each calendar year. The approved AIR is issued periodically in a Recurring Update Notification. Medicare Part B coinsurance is applied to IHS hospital Medicare Part B inpatient ancillary bills, but waived by the IHS. See §100.3.4 of this chapter for more information on the all-inclusive inpatient ancillary per diem rate.