Medicare program; changes to the criteria for being classified as an inpatient rehabilitation facility. Final rule.

This final rule responds to public comments on the September 9, 2003 proposed rule, and revises the classification criterion, commonly known as the "75 percent rule," used to classify a hospital as an inpatient rehabilitation facility (IRF). This final rule also modifies and expands the medical conditions listed in the regulatory requirements as well as temporarily lowers the percentage of patients required to fall within one of the specified list of medical conditions.