N77: Vulvovaginal ulceration and inflammation in diseases classified elsewhere
N77.0: Ulceration of vulva in diseases classified elsewhere

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

excludes1
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)

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