C77

C77: Secondary and unspecified malignant neoplasm of lymph nodes

Non-billable headerICD-10-CM

C77 is a non-billable header ICD-10-CM code for secondary and unspecified malignant neoplasm of lymph nodes. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead C77

8 child codes. Green means billable.

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