N76.6Ulceration of vulva

N76.6 is the ICD-10-CM diagnosis code for ulceration of vulva. It belongs to category N76 (other inflammation of vagina and vulva), block N70-N77 (inflammatory diseases of female pelvic organs) and chapter 14 (diseases of the genitourinary system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within N76 (other inflammation of vagina and vulva), N76.6 is specifically for ulceration of vulva. Related codes cover acute vaginitis (N76.0), subacute and chronic vaginitis (N76.1), acute vulvitis (N76.2), subacute and chronic vulvitis (N76.3), abscess of vulva (N76.4), ulceration of vagina (N76.5) and other specified inflammation of vagina and vulva (N76.8).

Use an additional code (B95-B97), to identify infectious agent.

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.

It is on the CMS list of diagnoses consistent only with female patients (the sex-conflict edit itself was retired in FY2025).

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

Before ICD-10, this condition was coded in ICD-9-CM as 616.50 (ulceration of vulva, unspecified).