HCFA told to revise exceptions to better differentiate atypical costs.
D014487:Centers for Medicare and Medicaid Services, U.S.; D002568:Certification; D006077:Government Agencies; D017408:Guidelines as Topic; D006278:Medicare / Q000331:legislation & jurisprudence*; D012866:Skilled Nursing Facilities / Q000191:economics* / Q000592:standards / Q000706:statistics & numerical data; D019467:Subacute Care / Q000145:classification; D014481:United States