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ICD-10-CM 2027 diagnosis code

Q13.89Other congenital malformations of anterior segment of eye

✓ Billable / specificPOA exempt

Q13.89 is a valid, billable ICD-10-CM code for other congenital malformations of anterior segment of eye. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Mesostromal dysgenesia.

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 Q13.89

Q13.89 is the ICD-10-CM diagnosis code for other congenital malformations of anterior segment of eye. It belongs to category Q13 (congenital malformations of anterior segment of eye), block Q10-Q18 (congenital malformations of eye, ear, face and neck) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within Q13.8, choose Q13.89 (Other congenital malformations of anterior segment of eye) only when documentation doesn't support a more specific option: Rieger anomaly (Q13.81).

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 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), 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 exempt from present-on-admission (POA) reporting, so no POA indicator is required.

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 743.49 (other congenital anomalies of anterior segment).

Notes that apply from higher levels

Instructions written at a parent level also apply to Q13.89.

Broader instructions also apply from Q10-Q18 Congenital malformations of eye, ear, face and neck and Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.

Alphabetic index entries

9 entries

Terms in the official ICD-10-CM index that lead to Q13.89.

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 →
  • 743.49Other congenital anomalies of anterior segmentapproximate

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 Q13.89

Is Q13.89 billable?

Yes. Q13.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Q13.89 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Q13.89 as a principal diagnosis.

Is Q13.89 a CC or MCC?

No. Q13.89 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does Q13.89 group to?

Q13.89 is used in the MS-DRG v44.0 logic for MS-DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent) and MS-DRG 125 (Other Disorders of the Eye without 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 Q13.89?

The CMS General Equivalence Mappings map Q13.89 to ICD-9-CM 743.49.