The International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM), Volumes I, II (diagnoses) and III (procedures) describes the classification of morbidity and mortality information for statistical purposes and for the indexing of healthcare records by diseases and procedures. The ICD-9-CM codes can be used as the value of the Act.cd attribute.
OCD/Classifications and Public Health Data Standards; National Center for Health StatisticsCenters for Disease Control and Prevention3311 Toledo RoadHyattsville, MD 20782
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