2026 ICD-10-CM Diagnosis Code N87.1Moderate cervical dysplasia

ICD-10-CM Codes›N00–N99›N80-N98›N87

ICD-10-CM N87.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N87.1 is a billable ICD-10-CM diagnosis code for moderate cervical 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 cervical intraepithelial neoplasia. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

This medical diagnosis code is frequently used in OB/GYN medical specialties to designate conditions such abnormal female genital cytology.

Code Identity

ICD-10-CM Code
N87.1
Billable Status
Yes — Valid for Submission
Code Describes
Moderate cervical dysplasia
Short Description
Moderate cervical dysplasia
Same as the full description in the CMS dataset.
Parent Code
N87
Dysplasia of cervix uteri

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN87Dysplasia of cervix uteri
This CodeN87.1Moderate cervical dysplasia

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cervical intraepithelial neoplasia
  • Cervical intraepithelial neoplasia grade 2
  • Dysplasia of cervix

Tabular List NotesGuidance

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

Inclusion Terms

  • Cervical intraepithelial neoplasia II CIN 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
      • cervix (uteri)
        • moderate
    • Neoplasia
      • intraepithelial (histologically confirmed)
        • cervix (uteri) (CIN) (histologically confirmed)
          • 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

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 N87.1 to ICD-9-CMHistory

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

ICD-9-CM
622.12 Mod dysplasia of 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 N87.1Overview

Is N87.1 (Dysplasia of cervix uteri) a billable code?

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

What MS-DRG does N87.1 group to?

When moderate cervical 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 N87.1?

Under the General Equivalence Mappings, moderate cervical dysplasia converts to ICD-9-CM 622.12 (mod dysplasia of 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.