C77 — Secondary and unspecified malignant neoplasm of lymph nodes
Not billable
Is C77 billable?
No — C77 is a non-billable header code. C77 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 8 billable codes beneath C77.
Billable codes under this header
- C77.0Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck
- C77.1Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes
- C77.2Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes
- C77.3Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes
- C77.4Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodes
- C77.5Secondary and unspecified malignant neoplasm of intrapelvic lymph nodes
- C77.8Secondary and unspecified malignant neoplasm of lymph nodes of multiple regions
- C77.9Secondary and unspecified malignant neoplasm of lymph node, unspecified
C77 at a glance
| Code | C77 |
|---|---|
| Description | Secondary and unspecified malignant neoplasm of lymph nodes |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with C77 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
What codes fall under C77? (8)
- C77.0Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck
- C77.1Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes
- C77.2Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes
- C77.3Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes
- C77.4Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodes
- C77.5Secondary and unspecified malignant neoplasm of intrapelvic lymph nodes
- C77.8Secondary and unspecified malignant neoplasm of lymph nodes of multiple regions
- C77.9Secondary and unspecified malignant neoplasm of lymph node, unspecified
How long has C77 existed?
C77 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.