C51 — Malignant neoplasm of vulva
Is C51 billable?
No — C51 is a non-billable header code. C51 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 5 billable codes beneath C51.
C51 at a glance
| Code | C51 |
|---|---|
| Description | Malignant neoplasm of vulva |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with C51 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- carcinoma in situ of vulva (D07.1)
What codes fall under C51? (5)
How long has C51 existed?
C51 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with C51?
ICD-10-CM declares these codes mutually exclusive with C51 — exactly one of each pair can be correct for a given encounter.