N77.1 Vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• candidal vulvovaginitis (B37.3-)
• chlamydial vulvovaginitis (A56.02)
• gonococcal vulvovaginitis (A54.02)
• herpesviral [herpes simplex] vulvovaginitis (A60.04)
• trichomonal vulvovaginitis (A59.01)
• tuberculous vulvovaginitis (A18.18)
• vulvovaginitis in early syphilis (A51.0)
• vulvovaginitis in late syphilis (A52.76)

Code first

• underlying disease, such as:
• pinworm (B80)

MS-DRG index

Defines the logic of DRG(s) 742-743 in MDC 13.

Approximate ICD-9-CM (GEMs)

• 616.11 Vaginitis and vulvovaginitis in diseases classified elsewhere (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Manifestation codes as principal diagnosis: Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and are not allowed as principal diagnosis.

Diagnosis Index entries for N77.1

• Vaginitis (acute) (circumscribed) (diffuse) (emphysematous) (nonvenereal) (ulcerative) › in (due to) › pinworm infection

Nearby codes

• N77 Vulvovaginal ulceration and inflammation in diseases classified elsewhere
• N77.0 Ulceration of vulva in diseases classified elsewhere
• N77.1 Vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere (this code)