N77 — Vulvovaginal ulceration and inflammation in diseases classified elsewhere
Is N77 billable?
No — N77 is a non-billable header code. N77 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 2 billable codes beneath N77.
N77 at a glance
| Code | N77 |
|---|---|
| Description | Vulvovaginal ulceration and inflammation in diseases classified elsewhere |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from N70-N77
The conditions below can never be reported together with N77 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N77, but a patient may have both at the same time. When documentation supports it, N77 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Code also — inherited from N70-N77
Two codes may be needed to describe the condition fully. Whether N77 is sequenced first depends on the reason for the encounter.
- , if applicable, pelvic abscess (K6A.0-)
What codes fall under N77? (2)
How long has N77 existed?
N77 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.