Convert ICD-10 C12 to ICD-9

ICD-10 code C12, Malignant neoplasm of pyriform sinus, crosswalked to ICD-9 with the official CMS General Equivalence Mappings. Convert another code below.

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Official CMS General Equivalence Mappings Final GEMs release (FY 2018) Maps in both directions

1 ICD-9 mapping for ICD-10 C12

From the official CMS General Equivalence Mappings. Review each mapping's flags before selecting the final code. Convert another code

ICD-10 code C12, "Malignant neoplasm of pyriform sinus", maps to ICD-9 code 148.1, "Mal neo pyriform sinus". This mapping carries no qualifying flags, so it is considered an exact equivalent. The crosswalk comes from the official CMS General Equivalence Mappings.

ICD‑10 Code

C12

Malignant neoplasm of pyriform sinus

ICD‑9 Code

148.1

Mal neo pyriform sinus

– This is a direct match with no additional mapping qualifiers.

See everything about the source code, including its category, synonyms, and history: open the C12 code page → Or run the reverse crosswalk: convert 148.1 back to ICD-10 →