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N89.3

N89.3Dysplasia of vagina, unspecified

Billable / specific codeICD-10-CM

N89.3 is a billable, specific ICD-10-CM code for dysplasia of vagina, unspecified. It is valid for submission on a claim.

Excludes1 inherited from the categories above N89.3

These are not written on N89.3, but they bind it: a note on a category applies to every code beneath it. Billing N89.3 with anything listed here is a denial.

Written on N89 Other noninflammatory disorders of vagina

  • 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 inherited from the categories above N89.3

Also inherited, and the opposite of Excludes1: these conditions are not part of N89.3, but a patient can have both, so you may code both.

Written on N89 Other noninflammatory disorders of vagina

  • senile (atrophic) vaginitis (N95.2)

Other codes that can never be billed with N89.3

These codes carry an Excludes1 note pointing at N89.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N89.3 alone.

  • R87.62Abnormal cytological findings in specimens from vagina
  • R87.7Abnormal histological findings in specimens from female genital organs

Risk adjustment

N89.3 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How N89.3 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N89.3.

  • Dysplasiavagina
  • Hyperplasia, hyperplasticepithelialvaginal wall
  • Neoplasiaintraepithelialvagina(histologically confirmed) (VAIN)

Code history

N89.3 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share N89. If N89.3 is not quite right, the correct code is usually one of these.

Questions about N89.3

Is N89.3 a billable ICD-10-CM code?
Yes. N89.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N89.3 sit in the tabular list?
Diseases of the genitourinary system (N00-N99), in the block Noninflammatory disorders of female genital tract (N80-N98).
What cannot be coded together with N89.3?
N89.3 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above N89.3 (N89) and apply to it just the same.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.