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ICD-10-CM 2027 diagnosis code

N90Other noninflammatory disorders of vulva and perineum

Not billable — use a more specific code

N90 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N90

N90 is the ICD-10-CM diagnosis code for other noninflammatory disorders of vulva and perineum. It belongs to 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 9 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: N90.0 (dysplasia), N90.1 (dysplasia), N90.3 (unspecified), N90.4 (vulva), N90.5 (vulva), N90.6 (vulva), N90.7 (cyst), N90.8 (perineum) and 1 more.

Don't report N90 together with the conditions in its Excludes1 note: anogenital (venereal) warts (A63.0), carcinoma in situ of vulva (D07.1), condyloma acuminatum (A63.0), current obstetric trauma (O70.-, O71.7-O71.8) and 3 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under N90

Coding notes

Excludes1Not coded here — never report together with this code
  • 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)

Notes that apply from higher levels

Instructions written at a parent level also apply to N90.

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)
  • No changes since FY2016.

Common questions about N90

Is N90 billable?

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