ICD-10-CM 2027
ICD-10 code for Aniridia
From the official ICD-10-CM alphabetic index entry “Aniridia (congenital)”. Page updated September 29, 2026.
About coding Aniridia
The ICD-10-CM code for Aniridia is Q13.1 (Absence of iris).
Within Q13 (congenital malformations of anterior segment of eye), Q13.1 is specifically for absence of iris. Related codes cover coloboma of iris (Q13.0), other congenital malformations of iris (Q13.2), congenital corneal opacity (Q13.3), other congenital corneal malformations (Q13.4), Blue sclera (Q13.5), other congenital malformations of anterior segment of eye (Q13.8) and congenital malformation of anterior segment of eye, unspecified (Q13.9).
Use an additional code for associated glaucoma (H42).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Aniridia ICD-10 codes
What is the ICD-10 code for Aniridia?
- Q13.1 — Absence of iris.
Is Q13.1 billable?
- Yes. Q13.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q13.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q13.1 as a principal diagnosis.
Is Q13.1 a CC or MCC?
- No. Q13.1 is neither a CC nor an MCC under MS-DRG v44.0.