C77
⚠ Non-billable (Header)Secondary and unspecified malignant neoplasm of lymph nodes
Neoplasms (C00-D49)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
directCannot be coded with C77
- • malignant neoplasm of lymph nodes, specified as primary (C81-C86, C88, C96.-)
- • mesentery metastasis of carcinoid tumor (C7B.04)
- • secondary carcinoid tumors of distant lymph nodes (C7B.01)
Child Codes (8)
C77.0Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neckC77.1Secondary and unspecified malignant neoplasm of intrathoracic lymph nodesC77.2Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodesC77.3Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodesC77.4Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodesC77.5Secondary and unspecified malignant neoplasm of intrapelvic lymph nodesC77.8Secondary and unspecified malignant neoplasm of lymph nodes of multiple regionsC77.9Secondary and unspecified malignant neoplasm of lymph node, unspecified
🧪 Validate Combinations
Add C77 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
CodeC77
BillableNo — Header code
CategoryNeoplasms (C00-D49)
Excludes13 rule(s)
Excludes20 note(s)
Child codes8
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)