Glossary of Health Care and Medical Terms

In many cases,
You can click on the healthcare related term below to get a more in-depth description of that glossary term. On the extended definition page, you will be shown the longer description, plus a list of articles related to that term or topic.


ICD-9 is International Classification of Diseases, Ninth Revision. It is a procedure and diagnosis coding system.

Claims for all services and hospital inpatient procedures provided before the ICD-10 compliance date must use ICD-9 / ICD-9-CM codes.
Also see: ICD, ICD-10, ICD-9-CM

International Classification of Diseases, Ninth Revision, Clinical Modification.

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