C79
Non-billableSecondary malignant neoplasm of other and unspecified sites
C79 is the ICD-10-CM code for Secondary malignant neoplasm of other and unspecified sites. It is a non-billable category code — use a more specific child code such as C79.0 for billing.
- Status
- Header (non-billable)
- Chapter
- C00-D49
- Subcodes
- 10
- Edition
- FY2026
C00-D49 Neoplasms
What this means — in plain language
MedlinePlus · NIHWhat is cancer? Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your body forms new cells as needed, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or…
Read more about Cancer at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
Medications indicated for this condition
FDA labeling- HydrocortisoneCorticosteroid [EPC]›
- Doxorubicin›
- DactinomycinActinomycin [EPC]›
- Pamidronate›
- Prednisolone OralCorticosteroid [EPC]›
- Radium›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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