Alphabetic Index FY2027

N90

Other noninflammatory disorders of vulva and perineum

FY2027Chapter 14: Diseases of the genitourinary system/N80–N98 Noninflammatory disorders of female genital tract

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

N90 is a non-billable ICD-10-CM code category for other noninflammatory disorders of vulva and perineum. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are N90.0 Mild vulvar dysplasia; N90.1 Moderate vulvar dysplasia; N90.3 Dysplasia of vulva, unspecified; N90.4 Leukoplakia of vulva and 5 more. Its coding notes include 7 Excludes1 entries and 8 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

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)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 14 Diseases of the genitourinary system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

More specific codes under N90 9