N77.0: Ulceration of vulva in diseases classified elsewhere

Clinical notes

Code first

This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.

underlying disease, such as:
Behçet's disease (M35.2)

Excludes1 (not coded here)

An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).

ulceration of vulva in gonococcal infection (A54.02)
ulceration of vulva in herpesviral [herpes simplex] infection (A60.04)
ulceration of vulva in syphilis (A51.0)
ulceration of vulva in tuberculosis (A18.18)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
•This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

N77.1Vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere
N77.0Ulceration of vulva in diseases classified elsewhere

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

61651

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

N77.0 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.