N90.6 – Hypertrophy of vulva

ICD-10-CM 2027 diagnosis code · Noninflammatory disorders of female genital tract

Non-billable header

ICD-10-CM code N90.6

Code: N90.6 (claims format: N906)
Description: Hypertrophy of vulva
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N80-N98 Noninflammatory disorders of female genital tract
Parent codes: N90

Billable codes under N90.6

N90.6 is a header code and cannot be used on claims. Choose the most specific code:

N90.60 – Unspecified hypertrophy of vulvaBillable
N90.61 – Childhood asymmetric labium majus enlargementBillable
N90.69 – Other specified hypertrophy of vulvaBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

N90 – Other noninflammatory disorders of vulva and perineum

Excludes1 (not coded here):

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)

Related codes in N90

N90.0 – Mild vulvar dysplasiaBillable
N90.1 – Moderate vulvar dysplasiaBillable
N90.3 – Dysplasia of vulva, unspecifiedBillable
N90.4 – Leukoplakia of vulvaBillable
N90.5 – Atrophy of vulvaBillable
N90.7 – Vulvar cystBillable
N90.8 – Other specified noninflammatory disorders of vulva and perineumHeader
N90.9 – Noninflammatory disorder of vulva and perineum, unspecifiedBillable

Frequently asked questions

What is ICD-10 code N90.6?

N90.6 is the ICD-10-CM code for hypertrophy of vulva, in the block N80-N98 (Noninflammatory disorders of female genital tract).

Is N90.6 a billable code?

No. N90.6 is a header code with more specific child codes; report one of the billable codes listed above.

What category does N90.6 belong to?

It belongs to category N90 – Other noninflammatory disorders of vulva and perineum.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.