ICD-9-CM diagnosis code (retired)
447.9 — Unspecified disorders of arteries and arterioles
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 447.9
447.9 is an ICD-9-CM diagnosis code for unspecified disorders of arteries and arterioles. 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, I77.9 (Disorder of arteries and arterioles, unspecified). The match is exact.
ICD-10-CM equivalents
- I77.9Disorder of arteries and arterioles, unspecifiedexact match
Common questions about 447.9
What is the ICD-10 code for ICD-9 447.9?
- The GEMs map 447.9 to ICD-10-CM I77.9.
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.