2026 ICD-10-CM Diagnosis Code N82.3Fistula of vagina to large intestine

ICD-10-CM Codes›N00–N99›N80-N98›N82

ICD-10-CM N82.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N82.3 is a billable ICD-10-CM diagnosis code for fistula of vagina to large intestine. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

Code Identity

ICD-10-CM Code
N82.3
Billable Status
Yes — Valid for Submission
Code Describes
Fistula of vagina to large intestine
Short Description
Fistula of vagina to large intestine
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 CodeN82.3Fistula of vagina to large intestine

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Colovaginal fistula
  • Fistula of sigmoid colon
  • Fistula of vagina to large intestine
  • Intestinovaginal fistula
  • Rectovaginal fistula
  • Rectovaginal fistula with anal sphincter involvement
  • Sigmoidovaginal fistula

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Rectovaginal fistula

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)
      • enterovaginal
        • large intestine
    • Fistula(cutaneous)
      • intestinovaginal
        • large intestine
    • Fistula(cutaneous)
      • rectovaginal
    • Fistula(cutaneous)
      • rectovesicovaginal
    • Fistula(cutaneous)
      • vaginointestinal NEC
        • large intestine
    • Fistula(cutaneous)
      • vesicosigmoidovaginal
    • Sinus
      • rectovaginal

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

Clinical InformationClinical

  • Rectovaginal Fistula

    an abnormal anatomical passage between the rectum and the vagina.

  • Rectovaginal Fistula

    abnormal connection between rectum and vagina.

Patient EducationClinical

Colonic Diseases

Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes and stores stool. Many disorders affect the colon's ability to work properly. Some of these include:

Read the full article at MedlinePlus

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

Convert N82.3 to ICD-9-CMHistory

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

ICD-9-CM
619.1 Digest-genit fistul, fem
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 N82.3Overview

Is N82.3 (Fistulae involving female genital tract) a billable code?

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

What MS-DRG does N82.3 group to?

When fistula of vagina to large intestine is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N82.3?

Under the General Equivalence Mappings, fistula of vagina to large intestine converts to ICD-9-CM 619.1 (digest-genit fistul, fem). The mapping is approximate, so confirm the match fits the documentation.

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.