ICD-10-CM 2027
ICD-10 code for vulva stenosis
From the official ICD-10-CM alphabetic index entry “Stenosis, stenotic (cicatricial) › vulva”. Page updated September 29, 2026.
About coding vulva stenosis
The ICD-10-CM code for vulva stenosis is N90.5 (Atrophy of vulva).
Within N90 (other noninflammatory disorders of vulva and perineum), N90.5 is specifically for atrophy 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), 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.
Common questions about vulva stenosis ICD-10 codes
What is the ICD-10 code for vulva stenosis?
- N90.5 — Atrophy of vulva.
Is N90.5 billable?
- Yes. N90.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N90.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N90.5 as a principal diagnosis.
Is N90.5 a CC or MCC?
- No. N90.5 is neither a CC nor an MCC under MS-DRG v44.0.