Q13
ICD-10Non-billable categoryCongenital malformations of anterior segment of eye
Official ICD-10-CM descriptor (FY2026)
Congenital malformations of anterior segment of eye
Q13 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
More specific codes under Q13
- Q13.0Coloboma of iris
- Q13.1Absence of iris
- Q13.2Other congenital malformations of iris
- Q13.3Congenital corneal opacity
- Q13.4Other congenital corneal malformations
- Q13.5Blue sclera
- Q13.8Other congenital malformations of anterior segment of eyecategory
- Q13.9Congenital malformation of anterior segment of eye, unsp
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.