ICD-9-CM diagnosis code (retired)
943.23 — Blisters, epidermal loss [second degree] of upper arm
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 943.23
943.23 is an ICD-9-CM diagnosis code for Blisters, epidermal loss [second degree] of upper arm. 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 T22.239A (Burn of second degree of unspecified upper arm, initial encounter) and T22.639A (Corrosion of second degree of unspecified upper arm, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 943.23
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.