C79.5
Non-billableSecondary malignant neoplasm of bone and bone marrow
C79.5 is the ICD-10-CM code for Secondary malignant neoplasm of bone and bone marrow. It is a non-billable category code — use a more specific child code such as C79.51 for billing.
C00-D49 Neoplasms
What this means — in plain language
MedlinePlus · NIHCancer that starts in a bone is uncommon. Cancer that has spread to the bone from another part of the body is more common. There are three types of bone cancer: Osteosarcoma - occurs most often between ages 10 and 19. It is more common in the knee and upper arm. Chondrosarcoma - starts in cartilage, usually after age 40 Ewing's sarcoma - occurs most often in children and teens under 19. It is more common in boys…
Read more about Bone Cancer at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •secondary carcinoid tumors of bone (C7B.03)
Frequently asked questions
- What is ICD-10 code C79.5?
- C79.5 is the ICD-10-CM code for "Secondary malignant neoplasm of bone and bone marrow". It falls under C00-D49 Neoplasms.
- Is C79.5 a billable code?
- No — C79.5 is a non-billable header code. Use a more specific child code (such as C79.51) for billing.
- What is excluded from C79.5?
- Excludes1 (not coded here): secondary carcinoid tumors of bone (C7B.03).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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