ICD-10-CM category
C79: Secondary malignant neoplasm of other and unspecified sites
Codes under C79 (Secondary malignant neoplasm of other and unspecified sites). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C79.0 | Secondary malignant neoplasm of kidney and renal pelvis | — |
| C79.00 | Secondary malignant neoplasm of unspecified kidney and renal pelvis | ✓ |
| C79.01 | Secondary malignant neoplasm of right kidney and renal pelvis | ✓ |
| C79.1 | Secondary malignant neoplasm of bladder and other and unspecified urinary organs | — |
| C79.02 | Secondary malignant neoplasm of left kidney and renal pelvis | ✓ |
| C79.2 | Secondary malignant neoplasm of skin | ✓ |
| C79.3 | Secondary malignant neoplasm of brain and cerebral meninges | — |
| C79.4 | Secondary malignant neoplasm of other and unspecified parts of nervous system | — |
| C79.5 | Secondary malignant neoplasm of bone and bone marrow | — |
| C79.6 | Secondary malignant neoplasm of ovary | — |
| C79.7 | Secondary malignant neoplasm of adrenal gland | — |
| C79.8 | Secondary malignant neoplasm of other specified sites | — |
| C79.9 | Secondary malignant neoplasm of unspecified site | ✓ |
| C79.10 | Secondary malignant neoplasm of unspecified urinary organs | ✓ |
| C79.11 | Secondary malignant neoplasm of bladder | ✓ |
| C79.19 | Secondary malignant neoplasm of other urinary organs | ✓ |
| C79.31 | Secondary malignant neoplasm of brain | ✓ |
| C79.32 | Secondary malignant neoplasm of cerebral meninges | ✓ |
| C79.40 | Secondary malignant neoplasm of unspecified part of nervous system | ✓ |
| C79.49 | Secondary malignant neoplasm of other parts of nervous system | ✓ |
| C79.51 | Secondary malignant neoplasm of bone | ✓ |
| C79.52 | Secondary malignant neoplasm of bone marrow | ✓ |
| C79.60 | Secondary malignant neoplasm of unspecified ovary | ✓ |
| C79.61 | Secondary malignant neoplasm of right ovary | ✓ |
| C79.62 | Secondary malignant neoplasm of left ovary | ✓ |
| C79.63 | Secondary malignant neoplasm of bilateral ovaries | ✓ |
| C79.70 | Secondary malignant neoplasm of unspecified adrenal gland | ✓ |
| C79.71 | Secondary malignant neoplasm of right adrenal gland | ✓ |
| C79.72 | Secondary malignant neoplasm of left adrenal gland | ✓ |
| C79.81 | Secondary malignant neoplasm of breast | ✓ |
| C79.82 | Secondary malignant neoplasm of genital organs | ✓ |
| C79.89 | Secondary malignant neoplasm of other specified sites | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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