2026 ICD-10-CM Diagnosis Code Q13.89Other congenital malformations of anterior segment of eye

ICD-10-CM Codes›Q00-Q99›Q10-Q18›Q13

ICD-10-CM Q13.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q13.89 is a billable ICD-10-CM diagnosis code for other congenital malformations of anterior segment of eye. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Congenital malformations of eye, ear, face, neck.

Code Identity

ICD-10-CM Code
Q13.89
Billable Status
Yes — Valid for Submission
Code Describes
Other congenital malformations of anterior segment of eye
Short Description
Other congenital malformations of anterior segment of eye
Same as the full description in the CMS dataset.
Parent Code
Q13.8
Other congenital malformations of anterior segment of eye

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ10-Q18Congenital malformations of eye, ear, face and neck
CategoryQ13Congenital malformations of anterior segment of eye
This CodeQ13.89Other congenital malformations of anterior segment of eye

Present on Admission (POA)Billing

Q13.89 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.

  • Acute angle closure due to anterior chamber angle anomaly
  • Acute angle closure of bilateral eyes due to congenital malformation of angle of anterior chamber of bilateral eyes
  • Acute angle closure of left eye due to congenital malformation of angle of anterior chamber of left eye
  • Acute angle closure of right eye due to congenital malformation of angle of anterior chamber of right eye
  • Angle closure due to anterior chamber angle anomaly
  • Angle closure of left eye due to congenital malformation of angle of anterior chamber of left eye
  • Angle closure of right eye due to congenital malformation of angle of anterior chamber of right eye
  • Autosomal recessive dysgenesis of anterior segment of eye
  • Axenfeld-Rieger syndrome
  • Barkan membrane
  • Bilateral acute angle closure
  • Bilateral angle closure due to congenital malformation of angle of anterior chamber of bilateral eyes
  • Bilateral glaucoma due to congenital chamber angle anomaly
  • Bilateral secondary acute angle closure
  • Bilateral secondary angle closure glaucoma
  • Congenital anomaly of macula
  • Congenital anomaly of sclera
  • Congenital hypoplasia of fovea centralis
  • Congenital hypoplasia of macula lutea
  • Congenital hypoplasia of retina
  • Congenital malformation of angle of anterior chamber of bilateral eyes
  • Congenital malformation of angle of anterior chamber of eye
  • Congenital malformation of angle of anterior chamber of left eye
  • Congenital malformation of angle of anterior chamber of right eye
  • Congenital melanosis of sclera
  • Foveal hypoplasia, optic nerve decussation defect, anterior segment dysgenesis syndrome
  • Glaucoma due to congenital chamber angle anomaly
  • Glaucoma of bilateral eyes due to anterior segment anomaly
  • Glaucoma of left eye due to anterior segment anomaly
  • Glaucoma of left eye due to congenital chamber angle anomaly
  • Glaucoma of right eye due to anterior segment anomaly
  • Glaucoma of right eye due to congenital chamber angle anomaly
  • GMS syndrome
  • Goniodysgenesis
  • Melanin pigmentation of eye
  • Persistent pupillary membranes
  • Trabecular dysgenesis

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.

    • Anomaly, anomalous(congenital) (unspecified type)
      • eye
        • anterior segment
          • specified NEC
    • Defect, defective
      • Descemet's membrane, congenital
    • Melanosis
      • conjunctiva
        • congenital
    • Melanosis
      • sclera
        • congenital
    • Membrana
      • capsularis lentis posterior
    • Membrane(s), membranous
      • pupillary
        • persistent
    • Mesostromal dysgenesia
    • Persistence, persistent(congenital)
      • pupillary membrane
    • Pupillary membrane(persistent)

Clinical ClassificationClinical

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

CCSR MAL005
Congenital malformations of eye, ear, face, neck
Default principal diagnosis: inpatient Yes · outpatient Yes

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 Q13.89 to ICD-9-CMHistory

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

ICD-9-CM
743.49 Anom anter seg NEC-eye
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 Q13.89Overview

Is Q13.89 (Other congenital malformations of anterior segment of eye) a billable code?

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

What MS-DRG does Q13.89 group to?

When other congenital malformations of anterior segment of eye is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

Is Q13.89 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 anterior segment of eye on inpatient claims.

What is the ICD-9 equivalent of Q13.89?

Under the General Equivalence Mappings, other congenital malformations of anterior segment of eye converts to ICD-9-CM 743.49 (anom anter seg NEC-eye). 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.