ICD-9-CM diagnosis code (retired)
363.50 — Hereditary choroidal dystrophy or atrophy, unspecified
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 363.50
363.50 is an ICD-9-CM diagnosis code for hereditary choroidal dystrophy or atrophy, unspecified. 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, H31.20 (Hereditary choroidal dystrophy, unspecified). The match is exact.
ICD-10-CM equivalents
- H31.20Hereditary choroidal dystrophy, unspecifiedexact match
Common questions about 363.50
What is the ICD-10 code for ICD-9 363.50?
- The GEMs map 363.50 to ICD-10-CM H31.20.
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.