Skip to content
Dx

ICD-9-CM procedure code (retired)

79.77 — Closed reduction of dislocation of ankle

ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.

About ICD-9-CM 79.77

79.77 is an ICD-9-CM procedure code for closed reduction of dislocation of ankle. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.

The CMS General Equivalence Mappings translate it to 18 ICD-10-PCS codes, such as 0SSF34Z (Reposition Right Ankle Joint with Internal Fixation Device, Percutaneous Approach), 0SSF35Z (Reposition Right Ankle Joint with External Fixation Device, Percutaneous Approach) and 0SSF3ZZ (Reposition Right Ankle Joint, Percutaneous Approach). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 79.77

What is the ICD-10 code for ICD-9 79.77?

The GEMs map 79.77 to ICD-10-PCS 0SSF34Z, 0SSF35Z, 0SSF3ZZ, 0SSF44Z, 0SSF45Z, 0SSF4ZZ and 12 more.

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.