ICD-9-CM diagnosis code (retired)
363.42 — Diffuse secondary atrophy of choroid
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 363.42
363.42 is an ICD-9-CM diagnosis code for diffuse secondary atrophy of choroid. 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, H31.129 (Diffuse secondary atrophy of choroid, unspecified eye). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- H31.129Diffuse secondary atrophy of choroid, unspecified eyeapproximate
Common questions about 363.42
What is the ICD-10 code for ICD-9 363.42?
- The GEMs map 363.42 to ICD-10-CM H31.129.
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.