2026
ICD-10-CM
Diagnosis
Code

C79 Secondary malignant neoplasm of other and unspecified sites

  • Non-billable
  • 2016–2026

C79 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Secondary malignant neoplasm of other and unspecified sites.

Type 1 excludes

  • Secondary carcinoid tumors (C7B.-)

  • Secondary neuroendocrine tumors (C7B.-)

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