An abbreviated reference to the American Medical Association guide to diagnosis codes, the International Classification of Diseases, 9th edition, Clinical Modification manual. Diagnosis codes are sometimes referred to as ICD-9-CM codes.

Refers to the International Classification of Diseases, 9th Revision, Clinical Modification. A standardized system of describing diagnoses and procedures. The coding and terminology provide a uniform language that will accurately designate primary and secondary diagnosis and provide for reliable, consistent communication on claim forms.

International Classification of Diseases, Ninth Revision, Clinical Modification