2026 ICD-10-CM Diagnosis Code N76.3Subacute and chronic vulvitis

ICD-10-CM Codes›N00–N99›N70-N77›N76

ICD-10-CM N76.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N76.3 is a billable ICD-10-CM diagnosis code for subacute and chronic vulvitis. 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, 757 through 759. Coders also document this condition as chronic disease of lymphatic vessels. 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
N76.3
Billable Status
Yes — Valid for Submission
Code Describes
Subacute and chronic vulvitis
Short Description
Subacute and chronic vulvitis
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 CodeN76.3Subacute and chronic vulvitis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chronic disease of lymphatic vessels
  • Chronic hypertrophic vulvitis
  • Chronic vulvitis
  • Recurrent vulvitis
  • Subacute vulvitis

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.

    • Vulvitis(acute) (allergic) (atrophic) (hypertrophic) (intertriginous) (senile)
      • subacute or chronic

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 N76.3 to ICD-9-CMHistory

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

ICD-9-CM
616.10 Vaginitis NOS
Approximate The match is approximate rather than exact.

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 N76.3Overview

Is N76.3 (Other inflammation of vagina and vulva) a billable code?

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

What MS-DRG does N76.3 group to?

When subacute and chronic vulvitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 757, 758, 759, with relative weights from 0.6636 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N76.3?

Under the General Equivalence Mappings, subacute and chronic vulvitis converts to ICD-9-CM 616.10 (vaginitis NOS). The mapping is approximate, so confirm the match fits the documentation.

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.