ICD-9-CM diagnosis code (retired)
341.0 — Neuromyelitis optica
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 341.0
341.0 is an ICD-9-CM diagnosis code for Neuromyelitis optica. 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, G36.0 (Neuromyelitis optica [Devic]). The match is exact.
ICD-10-CM equivalents
- G36.0Neuromyelitis optica [Devic]exact match
Common questions about 341.0
What is the ICD-10 code for ICD-9 341.0?
- The GEMs map 341.0 to ICD-10-CM G36.0.
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.