Maintenance and change process for ICD-9-CM.
D000043:Abstracting and Indexing / Q000592:standards*; D014487:Centers for Medicare and Medicaid Services, U.S.; D004194:Disease / Q000145:classification*; D006801:Humans; D008499:Medical Records / Q000592:standards*; D009309:National Center for Health Statistics, U.S.; D014481:United States