ICD-9-CM diagnosis code (retired)
380.50 — Acquired stenosis of external ear canal, unspecified as to cause
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 380.50
380.50 is an ICD-9-CM diagnosis code for acquired stenosis of external ear canal, unspecified as to cause. 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 2 ICD-10-CM codes, such as H61.309 (Acquired stenosis of external ear canal, unspecified, unspecified ear) and H61.399 (Other acquired stenosis of external ear canal, unspecified ear). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 380.50
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.