ICD-9-CM diagnosis code (retired)
824.6 — Trimalleolar fracture, closed
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 824.6
824.6 is an ICD-9-CM diagnosis code for trimalleolar fracture, closed. 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 S82.853A (Displaced trimalleolar fracture of unspecified lower leg, initial encounter for closed fracture) and S82.856A (Nondisplaced trimalleolar fracture of unspecified lower leg, initial encounter for closed fracture). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 824.6
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.