C77.1
C77.1: Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes
Billable / specific codeICD-10-CM
C77.1 is a billable, specific ICD-10-CM code for secondary and unspecified malignant neoplasm of intrathoracic lymph nodes. It is valid for submission on a claim.
Check C77.1 with the rest of the claim: free scrubberExcludes1 inherited from the categories above C77.1
A category’s note binds every code beneath it.
Risk adjustment
C77.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 17 Cancer Metastatic to Lung, Liver, Brain, and Other Organs; Acute Myeloid Leukemia Except Promyelocytic4.209 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
C77.1 is named in 42 Medicare coverage policies: 42 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
- A52986Billing and Coding: Biomarkers for Oncology
- A53101Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID® Update
- A54188Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID®
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under C77
- C77.0Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck
- 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