2026 ICD-10-CM Diagnosis Code N76.6Ulceration of vulva

ICD-10-CM Codes›N00–N99›N70-N77›N76

ICD-10-CM N76.6
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N76.6 is a billable ICD-10-CM diagnosis code for ulceration of vulva. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 742 through 743, 760 through 761. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Inflammatory diseases of female pelvic organs.

This medical diagnosis code is frequently used in OB/GYN medical specialties to designate conditions such inflammation of vagina and vulva.

Code Identity

ICD-10-CM Code
N76.6
Billable Status
Yes — Valid for Submission
Code Describes
Ulceration of vulva
Short Description
Ulceration of vulva
Same as the full description in the CMS dataset.
Parent Code
N76
Other inflammation of vagina and vulva

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN70-N77Inflammatory diseases of female pelvic organs
CategoryN76Other inflammation of vagina and vulva
This CodeN76.6Ulceration of vulva

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Erosion of vulvar labia
  • Erosive vulvitis
  • MAGIC syndrome
  • Non-infective ulcerative disorder of female genitalia
  • Recurrent ulcer of mouth
  • Sutton's ulcer
  • Ulcer of genital labium
  • Ulceration of vulva
  • Ulceration of vulva and vagina
  • Ulcerative inflammation of vulva and vagina
  • Ulcers of female genital organs
  • Ulcus vulvae acutum
  • Vaginal ulcer
  • Vulval aphthosis

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Aphthae, aphthous
      • ulcer (oral) (recurrent)
        • genital organ (s) NEC
          • female
    • Disease, diseased
      • Lipschütz's
    • Lipschütz disease or ulcer
    • Phagedena(dry) (moist) (sloughing)
      • vulva
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • aphthous (oral) (recurrent)
        • genital organ (s)
          • female
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • labium (majus) (minus)
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • Lipschütz's
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • vulva (acute) (infectional)
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • vulvobuccal, recurring

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN018
Inflammatory diseases of female pelvic organs
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Vulvar Disorders

The vulva is the external part of a woman's genitals. Some problems you can have with the vulvar area include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert N76.6 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
616.50 Ulceration of vulva NOS
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N76.6Overview

Is N76.6 (Other inflammation of vagina and vulva) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report ulceration of vulva on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N76.6 group to?

When ulceration of vulva is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.5696 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N76.6?

Under the General Equivalence Mappings, ulceration of vulva converts to ICD-9-CM 616.50 (ulceration of vulva NOS). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.