ICD-9-CM diagnosis code (retired)
955.6 — Injury to digital nerve, upper limb
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 955.6
955.6 is an ICD-9-CM diagnosis code for injury to digital nerve, upper limb. 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 S64.30XA (Injury of digital nerve of unspecified thumb, initial encounter) and S64.40XA (Injury of digital nerve of unspecified finger, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 955.6
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.