C79.2

C79.2: Secondary malignant neoplasm of skin

Billable / specific codeICD-10-CM

C79.2 is a billable, specific ICD-10-CM code for secondary malignant neoplasm of skin. It is valid for submission on a claim.

Check C79.2 with the rest of the claim: free scrubber

Excludes1: never code together

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

secondary Merkel cell carcinoma (C7B.1)

Excludes1 inherited from the categories above C79.2

A category’s note binds every code beneath it.

Written on C79: Secondary malignant neoplasm of other and unspecified sites

secondary carcinoid tumors (C7B.-)
secondary neuroendocrine tumors (C7B.-)

Risk adjustment

C79.2 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 18 Cancer Metastatic to Bone, Other and Unspecified Metastatic Cancer; Acute Leukemia Except Myeloid2.341 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

C79.2 is named in 54 Medicare coverage policies: 54 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52453Billing and Coding: Luteinizing Hormone-Releasing Hormone (LHRH) Analogs
A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
A52849Billing and Coding: Breast Imaging: Breast Echography (Sonography)/Breast MRI/Ductography
A52986Billing and Coding: Biomarkers for Oncology

Code history

Unchanged in every release from FY2024 to FY2027.