C79.83BillableCCNew for FY2027

Secondary malignant neoplasm of oral cavity

Neoplasms·Secondary malignant neoplasm of other specified sites·subcategory·FY 2027

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Instructional notes

Also applies, from C79: Secondary malignant neoplasm of other and unspecified sites

These notes sit on C79 and apply to every code under it, including C79.83.

Excludes1: not coded here, use a different code

  • secondary carcinoid tumors (C7B.-)
  • secondary neuroendocrine tumors (C7B.-)

Code history

  • FY 2026: replaced C79.89 (Secondary malignant neoplasm of other specified sites)