N90.1 Moderate vulvar dysplasia

Billable ICD-10-CM code, FY2026.

Applicable to

• Vulvar intraepithelial neoplasia [VIN], grade II

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)

• 624.02 Vulvar intraepithelial neoplasia II [VIN II]

Code annotations containing back-references to N90.1

Back-references to N90.1

• Type 1 Excludes: D07.1 Carcinoma in situ of vulva ("moderate dysplasia of vulva (N90.1)")
• Type 1 Excludes: D07.1 Carcinoma in situ of vulva ("vulvar intraepithelial neoplasia II [VIN II] (N90.1)")
• Type 1 Excludes: R87.69 Abnormal cytological findings in specimens from other female genital organs ("dysplasia of vulva (histologically confirmed) (N90.0-N90.3)")

Diagnosis Index entries for N90.1

• Dysplasia › vulva › moderate
• Neoplasia › intraepithelial (histologically confirmed) › vulva (histologically confirmed) (VIN) › grade II

Nearby codes

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