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Medicare program; changes to the inpatient rehabilitation facility prospective payment system and fiscal year 2004 rates. Final rule.

In this final rule, we are establishing the prospective payment rates for inpatient hospital services furnished under Medicare by inpatient rehabilitation facilities (IRFs) for Federal fiscal year (FY) 2004, as required under section 1886(j)(3)(C) of the Social Security Act (the Act). As required by law and regulations, we are specifying the classification and weighting factors for the IRF case- mix groups and providing a description of the methodology and data used in computing the prospective payment rates for FY 2004. These rates are applicable to discharges occurring on or after October 1, 2003 and before October 1, 2004. In addition, we are revising and clarifying policies governing the payment for inpatient hospital services furnished by IRFs under the IRF PPS.