General Equivalence Mappings: Frequently Asked Questions
This document was released in June of 2015 by the Centers for Medicare & Medicaid Services (CMS) provides information on General Equivalence Mappings (GEMs). This information includes the use of external cause and unspecified codes in International Classification of Diseases, 10th Edition, Clinical Modification (ICD-10-CM), background information on GEMs, and frequently asked questions about GEMs . . .
