ICD-10-CM 2027 diagnosis code
Q11.2Microphthalmos
Q11.2 is a valid, billable ICD-10-CM code for microphthalmos. 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 Microphthalmos, ICD-10 code for Cryptophthalmos.
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 Q11.2
Q11.2 is the ICD-10-CM diagnosis code for microphthalmos. It belongs to category Q11 (anophthalmos, microphthalmos and macrophthalmos), 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 Q11 (anophthalmos, microphthalmos and macrophthalmos), Q11.2 is specifically for microphthalmos. Related codes cover cystic eyeball (Q11.0), other anophthalmos (Q11.1) and macrophthalmos (Q11.3).
Don't report Q11.2 together with the conditions in its Excludes1 note: cryptophthalmos syndrome (Q87.0).
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 743.06 (Cryptophthalmos) and 743.10 (microphthalmos, unspecified).
Coding notes
- Cryptophthalmos NOS
- Dysplasia of eye
- Hypoplasia of eye
- Rudimentary eye
- cryptophthalmos syndrome (Q87.0)
Notes that apply from higher levels
Instructions written at a parent level also apply to Q11.2.
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
5 entriesTerms in the official ICD-10-CM index that lead to Q11.2.
Codes whose notes reference Q11.2
- Q10Excludes1
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.
MDC 02 · Diseases and Disorders of the Eye
ICD-9-CM equivalent
Converter →From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Q11.2
Is Q11.2 billable?
- Yes. Q11.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q11.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q11.2 as a principal diagnosis.
Is Q11.2 a CC or MCC?
- No. Q11.2 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Q11.2 group to?
- Q11.2 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 Q11.2?
- The CMS General Equivalence Mappings map Q11.2 to ICD-9-CM 743.06 and 743.10.