Other noninflammatory disorders of vulva and perineum (N90) ICD-10-CM
The N90 code range covers other noninflammatory disorders of vulva and perineum with 20 ICD-10-CM diagnosis codes. 16 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the N90 Range 20 codes · 16 billable
- N90 Other noninflammatory disorders of vulva and perineumNon-billable
- N90.0 Mild vulvar dysplasia
- N90.1 Moderate vulvar dysplasia
- N90.3 Dysplasia of vulva, unspecified
- N90.4 Leukoplakia of vulva
- N90.5 Atrophy of vulva
- N90.6 Hypertrophy of vulvaNon-billable
- N90.60 Unspecified hypertrophy of vulva
- N90.61 Childhood asymmetric labium majus enlargement
- N90.69 Other specified hypertrophy of vulva
- N90.7 Vulvar cyst
- N90.8 Other specified noninflammatory disorders of vulva and perineumNon-billable
- N90.81 Female genital mutilation statusNon-billable
- N90.810 Female genital mutilation status, unspecified
- N90.811 Female genital mutilation Type I status
- N90.812 Female genital mutilation Type II status
- N90.813 Female genital mutilation Type III status
- N90.818 Other female genital mutilation status
- N90.89 Other specified noninflammatory disorders of vulva and perineum
- N90.9 Noninflammatory disorder of vulva and perineum, unspecified
About the N90 Code Range
These noninflammatory disorders affect the vulva or perineum. The subdivisions distinguish named conditions, female genital mutilation status, and disorders not specified more closely.
Vulvar dysplasia is separated into mild, moderate, and unspecified categories under N90.0, N90.1, and N90.3. Other subdivisions identify leukoplakia, atrophy, enlargement, and cysts of the vulva. The enlargement codes distinguish childhood asymmetric enlargement of a labium majus from other specified or unspecified enlargement.
N90.81 separates female genital mutilation status by Type I, II, or III, with other and unspecified options. N90.8 identifies other specified disorders, while N90.9 identifies an unspecified disorder.
Questions About This Page
How many billable codes are in the N90 range?
Of the 20 codes in this range, 16 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the N90 range classify?
The range classifies other noninflammatory disorders of vulva and perineum. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
