Medicare program; changes to the inpatient hospital prospective payment system and fiscal year 1991 rates--HCFA....

We are revising the Medicare inpatient hospital prospective payment system to implement necessary changes arising from legislation and our continuing experience with the system. In addition, in the Addendum to this final rule, we are describing changes in the amounts and factors necessary to determine prospective payment rates for Medicare inpatient hospital services. In general, these changes are applicable to discharges occurring on or after October 1, 1990. We also set forth rate-of-increase limits for hospitals and hospital units excluded from the prospective payment system. This final rule also responds to comments received concerning changes to hospital payments made in an April 20, 1990 final rule with comment. These changes include mid-year changes to the inpatient hospital prospective payment system that implemented provisions of the Omnibus Budget Reconciliation Act of 1989; and adjustments applicable to prospective payment hospitals and to the target amounts of hospitals and units excluded from the prospective payment system due to the elimination of the day limitation on covered inpatient hospital days made by the Medicare Catastrophic Coverage Act of 1988 and later repealed by provisions in the Medicare Catastrophic Repeal Act of 1989. The April 20, 1990 final rule with comment also incorporated changes to these provisions made by the Family Support Act of 1988, which clarified the criteria for adjusting the target amounts and implementation date. In addition, this final rule clarifies the documentation requirements necessary to support the cost allocation of teaching physicians and the allowability of costs for rotating residents in determining payment for the direct costs of an approved graduate medical education program. This clarification is being made as a result of a September 29, 1989 final rule that made changes in Medicare policy concerning payment for the direct graduate medical education costs of providers associated with approved residency programs in medicine, osteopathy, dentistry, and podiatry.