What does ICD-10 code N90 mean?

ICD-10 code N90 is the standardized code used for other noninflammatory disorders of vulva and perineum in medical records and coding systems.

When is ICD-10 code N90 used?

Doctors, hospitals, and insurers may use ICD-10 code N90 when recording other noninflammatory disorders of vulva and perineum in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code N90 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code N90: Other noninflammatory disorders of vulva and perineum

Name: ICD-10 Code N90: Other noninflammatory disorders of vulva and perineum
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:27:07.292Z

N90 is an ICD-10 diagnosis entry used to group records related to Other noninflammatory disorders of vulva and perineum. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

When is it used?

May be used when a clinician documents other noninflammatory disorders of vulva and perineum in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

14Diseases of the genitourinary system (N00-N99)

block

N80-N98Noninflammatory disorders of female genital tract

currentN80-N98

Official coding notes

Excludes1 (do not code together)

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)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

UrologistGynecologist

Sibling codes

N80Endometriosis N81Female genital prolapse N82Fistulae involving female genital tract N83Noninflammatory disorders of ovary, fallopian tube and broad ligament N84Polyp of female genital tract N85Other noninflammatory disorders of uterus, except cervix N86Erosion and ectropion of cervix uteribillable N87Dysplasia of cervix uteri N88Other noninflammatory disorders of cervix uteri N89Other noninflammatory disorders of vagina N91Absent, scanty and rare menstruation N92Excessive, frequent and irregular menstruation N93Other abnormal uterine and vaginal bleeding N94Pain and other conditions associated with female genital organs and menstrual cycle N95Menopausal and other perimenopausal disorders N96Recurrent pregnancy lossbillable N97Female infertility N98Complications associated with artificial fertilization

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

N90

Replacement codes

N90.0 — Mild vulvar dysplasiaN90.1 — Moderate vulvar dysplasiaN90.3 — Dysplasia of vulva, unspecifiedN90.4 — Leukoplakia of vulvaN90.5 — Atrophy of vulvaN90.7 — Vulvar cystN90.9 — Noninflammatory disorder of vulva and perineum, unspecified

Common synonyms

Other noninflammatory disorders of vulva and perineum

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.