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ICD-10-CM 2027 diagnosis code

N90.6Hypertrophy of vulva

Not billable — use a more specific code

N90.6 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N90.6

N90.6 is the ICD-10-CM diagnosis code for hypertrophy of vulva. It belongs to category N90 (other noninflammatory disorders of vulva and perineum), block N80-N98 (noninflammatory disorders of female genital tract) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within N90 (other noninflammatory disorders of vulva and perineum), N90.6 is specifically for hypertrophy of vulva. Related codes cover mild vulvar dysplasia (N90.0), moderate vulvar dysplasia (N90.1), dysplasia of vulva, unspecified (N90.3), leukoplakia of vulva (N90.4), atrophy of vulva (N90.5), vulvar cyst (N90.7), other specified noninflammatory disorders of vulva and perineum (N90.8) and noninflammatory disorder of vulva and perineum, unspecified (N90.9).

To report this condition, pick the subcode that matches the documentation: N90.60 (vulva), N90.61 (enlargement) and N90.69 (vulva).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (expanded into subcodes).

Specific codes under N90.6

Notes that apply from higher levels

Instructions written at a parent level also apply to N90.6.

› From N90 Other noninflammatory disorders of vulva and perineum
Excludes1
  • 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)

Broader instructions also apply from Chapter 14: Diseases of the genitourinary system.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2017 (effective 10/1/2016): Expanded — no longer billable

Common questions about N90.6

Is N90.6 billable?

No. N90.6 is a header code. Report one of its more specific subcodes instead.