N90.4 Leukoplakia of vulva

Billable ICD-10-CM code, FY2026.

Applicable to

• Dystrophy of vulva
• Kraurosis of vulva
• Lichen sclerosus of external female genital organs

Applies from N90 Other noninflammatory disorders of vulva and perineum

Excludes1 (never code together)

• anogenital (venereal) warts (A63.0)
• carcinoma in situ of vulva (D07.1)
• condyloma acuminatum (A63.0)
• current obstetric trauma (O70.-, O71.7-O71.8)
• inflammation of vulva (N76.-)
• severe dysplasia of vulva (D07.1)
• vulvar intraepithelial neoplasm III [VIN III] (D07.1)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 624.09 Other dystrophy of vulva (approximate)

Code annotations containing back-references to N90.4

Back-references to N90.4

• Type 2 Excludes: L90.0 Lichen sclerosus et atrophicus ("lichen sclerosus of external female genital organs (N90.4)")

Diagnosis Index entries for N90.4

• Breisky's disease
• Disease, diseased › white-spot, meaning lichen sclerosus et atrophicus › vulva
• Dystrophy, dystrophia › vulva
• Hyperkeratosis › vulva
• Kraurosis › vulva
• Leukokraurosis vulva (e)
• Leukoplakia › vulva
• Lichen › albus › vulva
• Lichen › atrophicus › vulva
• Lichen › sclerosus (et atrophicus) › vulva
• Vulvitis (acute) (allergic) (atrophic) (hypertrophic) (intertriginous) (senile) › leukoplakic

Nearby codes

• N90 Other noninflammatory disorders of vulva and perineum
• N90.0 Mild vulvar dysplasia
• N90.1 Moderate vulvar dysplasia
• N90.3 Dysplasia of vulva, unspecified
• N90.4 Leukoplakia of vulva (this code)
• N90.5 Atrophy of vulva
• N90.6 Hypertrophy of vulva
• N90.60 Unspecified hypertrophy of vulva
• N90.61 Childhood asymmetric labium majus enlargement
• N90.69 Other specified hypertrophy of vulva