ICD-9-CM diagnosis code (retired)
378.18 — Alternating exotropia with other noncomitancies
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 378.18
378.18 is an ICD-9-CM diagnosis code for alternating exotropia with other noncomitancies. 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, H50.18 (Alternating exotropia with other noncomitancies). The match is exact.
ICD-10-CM equivalents
- H50.18Alternating exotropia with other noncomitanciesexact match
Common questions about 378.18
What is the ICD-10 code for ICD-9 378.18?
- The GEMs map 378.18 to ICD-10-CM H50.18.
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.