ICD-9-CM coding and reporting official guidelines. American Hospital Association, American Medical Record Association, Health Care Financing Administration, National Center for Health Statistics.
D000043:Abstracting and Indexing / Q000592:standards*; D004194:Disease / Q000145:classification*; D006801:Humans; D008499:Medical Records / Q000592:standards*; D016134:Organizational Policy; D014481:United States