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ICD-10-CM 2027

ICD-10 code for vulva dysplasia

N90.3

Dysplasia of vulva, unspecified

✓ Billable / specificFemale only

From the official ICD-10-CM alphabetic index entry “Dysplasia › vulva”. Page updated September 29, 2026.

About coding vulva dysplasia

The ICD-10-CM code for vulva dysplasia is N90.3 (Dysplasia of vulva, unspecified). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N90.3.

Within N90, choose N90.3 (Dysplasia of vulva, unspecified) only when documentation doesn't support a more specific option: mild vulvar dysplasia (N90.0), moderate vulvar dysplasia (N90.1), leukoplakia of vulva (N90.4), atrophy of vulva (N90.5), hypertrophy of vulva (N90.6), vulvar cyst (N90.7), other specified noninflammatory disorders of vulva and perineum (N90.8) and noninflammatory disorder of vulva and perineum, unspecified (N90.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

More specific vulva dysplasia codes (official index)

  • mild N90.0 — Mild vulvar dysplasia
  • moderate N90.1 — Moderate vulvar dysplasia
  • severe NEC D07.1 — Carcinoma in situ of vulva

Common questions about vulva dysplasia ICD-10 codes

What is the ICD-10 code for vulva dysplasia?

N90.3 — Dysplasia of vulva, unspecified. More specific codes apply when the documentation supports them: N90.0, N90.1, D07.1.

What is the ICD-10 code for mild vulva dysplasia?

N90.0 — Mild vulvar dysplasia.

What is the ICD-10 code for moderate vulva dysplasia?

N90.1 — Moderate vulvar dysplasia.

What is the ICD-10 code for severe nec vulva dysplasia?

D07.1 — Carcinoma in situ of vulva.

Is N90.3 billable?

Yes. N90.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can N90.3 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict N90.3 as a principal diagnosis.

Is N90.3 a CC or MCC?

No. N90.3 is neither a CC nor an MCC under MS-DRG v44.0.