C51: Malignant neoplasm of vulva
Codes under C51 (Malignant neoplasm of vulva). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| C51.0 | Malignant neoplasm of labium majus | ✓ |
| C51.0 | Malignant neoplasm of labium majus | ✓ |
| C51.1 | Malignant neoplasm of labium minus | ✓ |
| C51.1 | Malignant neoplasm of labium minus | ✓ |
| C51.2 | Malignant neoplasm of clitoris | ✓ |
| C51.2 | Malignant neoplasm of clitoris | ✓ |
| C51.8 | Malignant neoplasm of overlapping sites of vulva | ✓ |
| C51.8 | Malignant neoplasm of overlapping sites of vulva | ✓ |
| C51.9 | Malignant neoplasm of vulva, unspecified | ✓ |
| C51.9 | Malignant neoplasm of vulva, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code C51?
C51 is an ICD-10-CM category covering Malignant neoplasm of vulva. It contains 10 more specific diagnosis codes, 10 of which are billable.
Is C51 a billable code?
No — C51 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 C51.0 — Malignant neoplasm of labium majus). 10 of the 10 codes under C51 are billable.
What codes fall under C51?
C51 includes C51.0, C51.0, C51.1, C51.1, C51.2, plus 5 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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