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ICD-10-CM 2027 diagnosis code

N89.4Leukoplakia of vagina

✓ Billable / specificFemale only

N89.4 is a valid, billable ICD-10-CM code for leukoplakia of vagina. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N89.4

N89.4 is the ICD-10-CM diagnosis code for leukoplakia of vagina. It belongs to category N89 (other noninflammatory disorders of vagina), block N80-N98 (noninflammatory disorders of female genital tract) and chapter 14 (diseases of the genitourinary system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within N89 (other noninflammatory disorders of vagina), N89.4 is specifically for leukoplakia of vagina. Related codes cover mild vaginal dysplasia (N89.0), moderate vaginal dysplasia (N89.1), dysplasia of vagina, unspecified (N89.3), stricture and atresia of vagina (N89.5), Tight hymenal ring (N89.6), Hematocolpos (N89.7), other specified noninflammatory disorders of vagina (N89.8) and noninflammatory disorder of vagina, unspecified (N89.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is on the CMS list of diagnoses consistent only with female patients (the sex-conflict edit itself was retired in FY2025).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 623.1 (leukoplakia of vagina).

Notes that apply from higher levels

Instructions written at a parent level also apply to N89.4.

› From N89 Other noninflammatory disorders of vagina
Excludes1
  • abnormal results from vaginal cytologic examination without histologic confirmation (R87.62-)
  • carcinoma in situ of vagina (D07.2)
  • HGSIL of vagina (R87.623)
  • inflammation of vagina (N76.-)
  • severe dysplasia of vagina (D07.2)
  • trichomonal leukorrhea (A59.00)
  • vaginal intraepithelial neoplasia [VAIN], grade III (D07.2)
Excludes2
  • senile (atrophic) vaginitis (N95.2)

Broader instructions also apply from Chapter 14: Diseases of the genitourinary system.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to N89.4.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 623.1Leukoplakia of vaginaexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about N89.4

Is N89.4 billable?

Yes. N89.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can N89.4 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict N89.4 as a principal diagnosis.

Is N89.4 a CC or MCC?

No. N89.4 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does N89.4 group to?

N89.4 is used in the MS-DRG v44.0 logic for MS-DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC), MS-DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC), MS-DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC) and MS-DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for N89.4?

The CMS General Equivalence Mappings map N89.4 to ICD-9-CM 623.1.