ICD-9-CM diagnosis code (retired)
394.1 — Rheumatic mitral insufficiency
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 394.1
394.1 is an ICD-9-CM diagnosis code for rheumatic mitral insufficiency. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, I05.1 (Rheumatic mitral insufficiency). The match is exact.
ICD-10-CM equivalents
- I05.1Rheumatic mitral insufficiencyexact match
Common questions about 394.1
What is the ICD-10 code for ICD-9 394.1?
- The GEMs map 394.1 to ICD-10-CM I05.1.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.