2026 ICD-10-CM Diagnosis Code N82.9Female genital tract fistula, unspecified

ICD-10-CM Codes›N00–N99›N80-N98›N82

ICD-10-CM N82.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N82.9 is a billable ICD-10-CM diagnosis code for female genital tract fistula, unspecified. 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. Coders also document this condition as abnormal female sexual function. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

Code Identity

ICD-10-CM Code
N82.9
Billable Status
Yes — Valid for Submission
Code Describes
Female genital tract fistula, unspecified
Short Description
Female genital tract fistula, unspecified
Same as the full description in the CMS dataset.
Parent Code
N82
Fistulae involving female genital tract

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN82Fistulae involving female genital tract
This CodeN82.9Female genital tract fistula, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal female sexual function
  • Amenorrhea due to obstetric fistula
  • Fistula of genitourinary tract
  • Fistula of the female genital organs
  • Granulation around vaginal fistula
  • Neurological dysfunction due to obstetric fistula
  • Pathologic amenorrhea
  • Sexual dysfunction due to obstetric fistula
  • Vaginal fistula finding
  • Vaginal granulation tissue

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.

    • Fistula(cutaneous)
      • genital tract (female)

Clinical ClassificationClinical

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

CCSR GEN025
Other specified female genital disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Fistulas

A fistula is an abnormal connection between two parts inside of the body. Fistulas may develop between different organs, such as between the esophagus and the windpipe or the bowel and the vagina. They can also develop between two blood vessels, such as between an artery and a vein or between two arteries.

Read the full article at MedlinePlus

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

Convert N82.9 to ICD-9-CMHistory

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

ICD-9-CM
619.9 Fem genital fistula 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 N82.9Overview

Is N82.9 (Fistulae involving female genital tract) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report female genital tract fistula, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N82.9 group to?

When female genital tract fistula, unspecified 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 N82.9?

Under the General Equivalence Mappings, female genital tract fistula, unspecified converts to ICD-9-CM 619.9 (fem genital fistula NOS). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.