ICD-9-CM procedure code (retired)
77.91 — Total ostectomy, scapula, clavicle, and thorax [ribs and sternum]
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 77.91
77.91 is an ICD-9-CM procedure code for total ostectomy, scapula, clavicle, and thorax [ribs and sternum]. 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 7 ICD-10-PCS codes, such as 0PT00ZZ (Resection of Sternum, Open Approach), 0PT10ZZ (Resection of 1 to 2 Ribs, Open Approach) and 0PT20ZZ (Resection of 3 or More Ribs, Open Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0PT00ZZResection of Sternum, Open Approachapproximate
- 0PT10ZZResection of 1 to 2 Ribs, Open Approachapproximate
- 0PT20ZZResection of 3 or More Ribs, Open Approachapproximate
- 0PT50ZZResection of Right Scapula, Open Approachapproximate
- 0PT60ZZResection of Left Scapula, Open Approachapproximate
- 0PT90ZZResection of Right Clavicle, Open Approachapproximate
- 0PTB0ZZResection of Left Clavicle, Open Approachapproximate
Common questions about 77.91
What is the ICD-10 code for ICD-9 77.91?
- The GEMs map 77.91 to ICD-10-PCS 0PT00ZZ, 0PT10ZZ, 0PT20ZZ, 0PT50ZZ, 0PT60ZZ, 0PT90ZZ and 1 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.