2027 ICD-10-CM Diagnosis Code N89.6Tight hymenal ring

ICD-10-CM Codes›N00–N99›N80-N98›N89

ICD-10-CM N89.6
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

N89.6 is a billable ICD-10-CM diagnosis code for tight hymenal ring. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 742 through 743, 760 through 761. Coders also document this condition as disorder of hymen. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

Code Identity

ICD-10-CM Code
N89.6
Billable Status
Yes — Valid for Submission
Code Describes
Tight hymenal ring
Short Description
Tight hymenal ring
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 CodeN89.6Tight hymenal ring

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Disorder of hymen
  • Finding of size of hymen
  • Noninflammatory disorder of the vagina
  • Tight hymen
  • Tight hymenal ring

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to N89.6: its own notes plus those printed at N89 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Rigid hymen
  • Tight introitus

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

On N89.6 itself
  • imperforate hymen (Q52.3)
From N89 Other noninflammatory disorders of vagina applies to 9 codes
  • 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

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From N89 Other noninflammatory disorders of vagina applies to 9 codes
  • senile (atrophic) vaginitis (N95.2)
From Chapter 14 (N00-N99) Diseases of the genitourinary system applies to 838 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name N89.6, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming N89.6: they are not reported together with it, unless the two conditions are unrelated.

  • R87.62 Abnormal cytological findings in specimens from vagina
    dysplasia (mild) (moderate) of vagina (histologically confirmed) (N89.-) names N89.-, which includes this code
  • R87.7 Abnormal histological findings in specimens from female genital organs
    dysplasia (mild) (moderate) of vagina (histologically confirmed) (N89.-) names N89.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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 N89.6 to ICD-9-CMHistory

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

ICD-9-CM
623.3 Tight hymenal ring
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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About N89.6Overview

What is the ICD-10 code for tight hymenal ring?

The ICD-10-CM code for tight hymenal ring is N89.6 (sometimes written as N896). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is N89.6 (Other noninflammatory disorders of vagina) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report tight hymenal ring on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does N89.6 group to?

When tight hymenal ring is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.7039 to 1.8448 depending on complications. Higher weights mean higher Medicare reimbursement.

Can N89.6 be reported with Q52.3?

Not as a rule. The Excludes1 note on N89.6 lists "imperforate hymen (Q52.3)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of N89.6?

Under the General Equivalence Mappings, tight hymenal ring converts to ICD-9-CM 623.3 (tight hymenal ring). The mapping is a direct match.