ICD-9-CM diagnosis code (retired)
146.8 — Malignant neoplasm of other specified sites of oropharynx
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 146.8
146.8 is an ICD-9-CM diagnosis code for malignant neoplasm of other specified sites of oropharynx. 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 C10.4 (Malignant neoplasm of branchial cleft) and C10.8 (Malignant neoplasm of overlapping sites of oropharynx). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 146.8
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.