ICD-10-CM 2027
ICD-10 code for eye hypoplasia
From the official ICD-10-CM alphabetic index entry “Hypoplasia, hypoplastic › eye”. Page updated September 29, 2026.
About coding eye hypoplasia
The ICD-10-CM code for eye hypoplasia is Q11.2 (Microphthalmos).
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.
Don't confuse with (Excludes1 for Q11.2)
- cryptophthalmos syndrome (Q87.0)
Common questions about eye hypoplasia ICD-10 codes
What is the ICD-10 code for eye hypoplasia?
- Q11.2 — Microphthalmos.
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.