C77: Secondary and unspecified malignant neoplasm of lymph nodes

Codes under C77 (Secondary and unspecified malignant neoplasm of lymph nodes). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
C77.0	Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck	✓
C77.1	Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes	✓
C77.2	Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes	✓
C77.3	Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes	✓
C77.4	Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodes	✓
C77.5	Secondary and unspecified malignant neoplasm of intrapelvic lymph nodes	✓
C77.8	Secondary and unspecified malignant neoplasm of lymph nodes of multiple regions	✓
C77.9	Secondary and unspecified malignant neoplasm of lymph node, unspecified	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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