2026 ICD-10-CM Diagnosis Code Q52.4Other congenital malformations of vagina

ICD-10-CM Codes›Q00-Q99›Q50-Q56›Q52

ICD-10-CM Q52.4
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q52.4 is a billable ICD-10-CM diagnosis code for other congenital malformations of vagina. 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. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Genitourinary congenital anomalies.

Code Identity

ICD-10-CM Code
Q52.4
Billable Status
Yes — Valid for Submission
Code Describes
Other congenital malformations of vagina
Short Description
Other congenital malformations of vagina
Same as the full description in the CMS dataset.
Parent Code
Q52
Other congenital malformations of female genitalia

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ50-Q56Congenital malformations of genital organs
CategoryQ52Other congenital malformations of female genitalia
This CodeQ52.4Other congenital malformations of vagina

Present on Admission (POA)Billing

Q52.4 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Annular hymen
  • Atresia of lower vagina
  • Bicornuate uterus
  • Congenital abnormal shape of fallopian tube
  • Congenital anomaly of mother complicating pregnancy
  • Congenital anomaly of vagina
  • Congenital anomaly of vagina in mother complicating pregnancy
  • Congenital atresia of vagina
  • Congenital cyst of canal of Nuck
  • Congenital duplication of cervix
  • Congenital duplication of uterus
  • Congenital malformation of uterus and cervix
  • Congenital stenosis of vagina
  • Congenital stenosis of vagina affecting pregnancy
  • Cyst of canal of Nuck
  • Cyst of vagina
  • Disorder of hymen
  • Double uterus, hemivagina, renal agenesis syndrome
  • Embryonic cyst of Gartner's duct
  • Embryonic cyst of left Gartner's duct
  • Embryonic cyst of right Gartner's duct
  • Embryonic cyst of vagina
  • Finding of shape of hymen
  • Horseshoe shape hymen
  • Hypoplasia of vagina
  • Septate hymen
  • Septate vagina
  • Stenosis of vagina
  • Stenosis of vagina in pregnancy, childbirth and the puerperium
  • Uterus bicornis bicollis
  • Uterus bicornis bicollis with blind hemi-vagina
  • Vaginal septum

Tabular List NotesGuidance

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

Inclusion Terms

  • Canal of Nuck cyst, congenital
  • Congenital malformation of vagina NOS
  • Embryonic vaginal cyst
  • Gartner's duct cyst

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.

    • Absence(of) (organ or part) (complete or partial)
      • hymen (congenital)
    • Accessory(congenital)
      • hymen
    • Agenesis
      • hymen
    • Anomaly, anomalous(congenital) (unspecified type)
      • canal of Nuck
    • Anomaly, anomalous(congenital) (unspecified type)
      • Gartner's duct
    • Anomaly, anomalous(congenital) (unspecified type)
      • hymen
    • Anomaly, anomalous(congenital) (unspecified type)
      • vagina
    • Atresia, atretic
      • vagina (congenital)
    • Cyst(colloid) (mucous) (simple) (retention)
      • canal of Nuck (female)
        • congenital
    • Cyst(colloid) (mucous) (simple) (retention)
      • embryonic
        • vagina
    • Cyst(colloid) (mucous) (simple) (retention)
      • Gartner's duct
    • Cyst(colloid) (mucous) (simple) (retention)
      • hymen
        • embryonic
    • Cyst(colloid) (mucous) (simple) (retention)
      • Müllerian duct
        • vagina (embryonal)
    • Cyst(colloid) (mucous) (simple) (retention)
      • vagina, vaginal (implantation) (inclusion) (squamous cell) (wall)
        • embryonic
    • Deformity
      • vagina (acquired)
        • congenital
    • Displacement, displaced
      • hymen (upward) (congenital)
    • Distortion(s) (congenital)
      • hymen
    • Distortion(s) (congenital)
      • vagina
    • Fusion, fused(congenital)
      • vagina
    • Gartner's duct
      • cyst
    • Hyperplasia, hyperplastic
      • hymen, congenital
    • Hypertrophy, hypertrophic
      • hymen, congenital
    • Hypoplasia, hypoplastic
      • vagina
    • Imperforate(congenital)
      • vagina
    • Malformation(congenital)
      • vagina
    • Patent
      • canal of Nuck
    • Persistence, persistent(congenital)
      • Gartner's duct
    • Short, shortening, shortness
      • vagina (congenital)
    • Stenosis, stenotic(cicatricial)
      • vagina
        • congenital
    • Supernumerary(congenital)
      • hymen

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MAL003
Genitourinary congenital anomalies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Bicornuate Uterus

    a congenital uterine anomaly in which the uterus is divided into two uterine horns with a significant cleft at the uterine fundus due to partial fusion of the mullerian ducts. bicornuate uterus is sometimes associated with a longitudinal vaginal septum and abnormal development of renal tracts.

Patient EducationClinical

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

The full article covers:

  • What are birth defects?
  • What causes birth defects?
  • Who is at risk of having a baby with birth defects?
  • How are birth defects diagnosed?
  • What are the treatments for birth defects?
  • Can birth defects be prevented?

Read the full article at MedlinePlus

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

Convert Q52.4 to ICD-9-CMHistory

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

ICD-9-CM
752.41 Embryon cyst fem gen NEC
Approximate The match is approximate rather than exact.
ICD-9-CM
752.49 Cervix/fem gen anom NEC
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 Q52.4Overview

Is Q52.4 (Other congenital malformations of female genitalia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other congenital malformations of vagina on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Q52.4 group to?

When other congenital malformations of vagina 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.

Is Q52.4 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for other congenital malformations of vagina on inpatient claims.

What is the ICD-9 equivalent of Q52.4?

Under the General Equivalence Mappings, other congenital malformations of vagina converts to ICD-9-CM 752.41 (embryon cyst fem gen NEC) and 752.49 (cervix/fem gen anom NEC). 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.