International Classification of Diseases - 9th revision - Clinical Modification (ICD-9-CM) (ICD-9-CM)

ICD-9-CM stands for the "International Classification of Diseases - 9th revision - Clinical Modification."" All diagnoses (or conditions) and all procedures that patients receive in the hospital are assigned an ICD-9-CM code. Codes for diagnoses can be up to 5 digits long and codes for procedures can be up to 4 digits long. There are about 12