2026 ICD-10-CM Diagnosis Code N89.1Moderate vaginal dysplasia

ICD-10-CM Codes›N00–N99›N80-N98›N89

ICD-10-CM N89.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N89.1 is a billable ICD-10-CM diagnosis code for moderate vaginal dysplasia. 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 benign neoplasm of vagina. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

Code Identity

ICD-10-CM Code
N89.1
Billable Status
Yes — Valid for Submission
Code Describes
Moderate vaginal dysplasia
Short Description
Moderate vaginal dysplasia
Same as the full description in the CMS dataset.
Parent Code
N89
Other noninflammatory disorders of vagina

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN89Other noninflammatory disorders of vagina
This CodeN89.1Moderate vaginal dysplasia

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Benign neoplasm of vagina
  • Vaginal intraepithelial neoplasia grade 2

Tabular List NotesGuidance

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

Inclusion Terms

  • Vaginal intraepithelial neoplasia VAIN, grade II

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.

    • Dysplasia
      • vagina
        • moderate
    • Neoplasia
      • intraepithelial (histologically confirmed)
        • vagina (histologically confirmed) (VAIN)
          • grade II

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

Vaginal Diseases

Vaginal problems are some of the most common reasons women go to the doctor. They may have symptoms such as:

Read the full article at MedlinePlus

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

Convert N89.1 to ICD-9-CMHistory

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

ICD-9-CM
623.0 Dysplasia of vagina
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 N89.1Overview

Is N89.1 (Other noninflammatory disorders of vagina) a billable code?

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

What MS-DRG does N89.1 group to?

When moderate vaginal dysplasia 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 N89.1?

Under the General Equivalence Mappings, moderate vaginal dysplasia converts to ICD-9-CM 623.0 (dysplasia of vagina). 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.