C80: Malignant neoplasm without specification of site
Codes under C80 (Malignant neoplasm without specification of site). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C80.0 | Disseminated malignant neoplasm, unspecified | ✓ |
| C80.0 | Disseminated malignant neoplasm, unspecified | ✓ |
| C80.1 | Malignant (primary) neoplasm, unspecified | ✓ |
| C80.1 | Malignant (primary) neoplasm, unspecified | ✓ |
| C80.2 | Malignant neoplasm associated with transplanted organ | ✓ |
| C80.2 | Malignant neoplasm associated with transplanted organ | ✓ |
Frequently asked questions
What is ICD-10-CM code C80?
C80 is an ICD-10-CM category covering Malignant neoplasm without specification of site. It contains 6 more specific diagnosis codes, 6 of which are billable.
Is C80 a billable code?
No — C80 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example C80.0 — Disseminated malignant neoplasm, unspecified). 6 of the 6 codes under C80 are billable.
What codes fall under C80?
C80 includes C80.0, C80.0, C80.1, C80.1, C80.2, plus 1 more. See the full list with descriptions and billable status above.
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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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