2026 ICD-10-CM Diagnosis Code N86Erosion and ectropion of cervix uteri

ICD-10-CM Codes›N00–N99›N80-N98›N86

ICD-10-CM N86
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N86 is a billable ICD-10-CM diagnosis code for erosion and ectropion of cervix uteri. 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 antepartum hemorrhage due to cervical erosion. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

Code Identity

ICD-10-CM Code
N86
Billable Status
Yes — Valid for Submission
Code Describes
Erosion and ectropion of cervix uteri
Short Description
Erosion and ectropion of cervix uteri
Same as the full description in the CMS dataset.
Chapter
N80-N98
Noninflammatory disorders of female genital tract

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN86Erosion and ectropion of cervix uteri
This CodeN86Erosion and ectropion of cervix uteri

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Antepartum hemorrhage due to cervical erosion
  • Ectropion of cervix
  • Erosion of cervix
  • Impaired wound healing
  • Trophic ulcer of uterine cervix
  • Ulcer of cervix
  • Ulcer of uterus

Tabular List NotesGuidance

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

Inclusion Terms

  • Decubitus (trophic) ulcer of cervix
  • Eversion of cervix

Type 1 Excludes

  • erosion and ectropion of cervix with cervicitis N72

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.

    • Decubitus(ulcer)
      • cervix
    • Ectropion
      • cervix
    • Erosion
      • cervix (uteri) (acquired) (chronic) (congenital)
    • Eversion
      • cervix (uteri)
    • Laceration
      • causing eversion of cervix uteri (old)
    • Lipping, cervix
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • cervix (uteri) (decubitus) (trophic)
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • neck
        • uterus
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • uterus
        • cervix
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • uterus
        • neck

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

Cervix Disorders

A cervix disorder is a problem with your cervix. The cervix is part of the female reproductive system. It is the lower, narrow end of the uterus (womb), which opens into the vagina (birth canal). The cervix has a small opening that expands during childbirth. It also allows menstrual blood to leave your body.

The full article covers:

  • What is a cervix disorder?
  • Who is more likely to develop cervix disorders?
  • What are the symptoms of cervix disorders?
  • How are cervix disorders diagnosed?
  • What are the treatments for cervix disorders?
  • Can cervix disorders be prevented?

Read the full article at MedlinePlus

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

Convert N86 to ICD-9-CMHistory

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

ICD-9-CM
622.0 Erosion/ectropion cervix
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 N86Overview

Is N86 (Erosion and ectropion of cervix uteri) a billable code?

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

What MS-DRG does N86 group to?

When erosion and ectropion of cervix uteri 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 N86?

Under the General Equivalence Mappings, erosion and ectropion of cervix uteri converts to ICD-9-CM 622.0 (erosion/ectropion cervix). 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.