ICD-9-CM diagnosis code (retired)
372.21 — Angular blepharoconjunctivitis
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 372.21
372.21 is an ICD-9-CM diagnosis code for Angular blepharoconjunctivitis. 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, H10.529 (Angular blepharoconjunctivitis, unspecified eye). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- H10.529Angular blepharoconjunctivitis, unspecified eyeapproximate
Common questions about 372.21
What is the ICD-10 code for ICD-9 372.21?
- The GEMs map 372.21 to ICD-10-CM H10.529.
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.