Convert ICD-9 Codes to ICD-10

This tool allows you to convert ICD-9-CM codes to ICD-10-CM codes using the General Equivalence Mappings (GEMS). The conversion tool offers acceptable translation alternatives wherever possible.

The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
GEM Definitions: