Q13.1Billable
Absence of iris
- Chapter
- 17. Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q13
- Effective date
- October 1, 2026
Related codes in category Q13
Q13Congenital malformations of anterior segment of eyeQ13.0Coloboma of irisYesQ13.2Other congenital malformations of irisYesQ13.3Congenital corneal opacityYesQ13.4Other congenital corneal malformationsYesQ13.5Blue scleraYesQ13.8Other congenital malformations of anterior segment of eyeQ13.81Rieger anomalyYesQ13.89Other congenital malformations of anterior segment of eyeYesQ13.9Congenital malformation of anterior segment of eye, unspYes
Frequently asked questions
What is ICD-10 code Q13.1?
Q13.1 is an ICD-10-CM diagnosis code for Absence of iris.
Is Q13.1 a billable code?
Yes. Q13.1 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Q13.1 in?
Q13.1 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.
When did Q13.1 become effective?
Q13.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Q13.1?
Q13.1 belongs to category Q13, which includes 10 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.