Q13.1 Absence of iris

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Aniridia

Use additional code

• code for associated glaucoma (H42)

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 743.45 Aniridia

Code annotations containing back-references to Q13.1

Back-references to Q13.1

• Code First: H42 Glaucoma in diseases classified elsewhere ("aniridia (Q13.1)")

Diagnosis Index entries for Q13.1

• Absence (of) (organ or part) (complete or partial) › iris, congenital
• Agenesis › iris (dilator fibers)
• Aniridia (congenital)
• Aplasia › iris
• Glaucoma › in (due to) › aniridia
• Irideremia

Nearby codes

• Q13 Congenital malformations of anterior segment of eye
• Q13.0 Coloboma of iris
• Q13.1 Absence of iris (this code)
• Q13.2 Other congenital malformations of iris
• Q13.3 Congenital corneal opacity
• Q13.4 Other congenital corneal malformations
• Q13.5 Blue sclera
• Q13.8 Other congenital malformations of anterior segment of eye