Q23.1

ICD-10Billable

Congenital insufficiency of aortic valve

Official ICD-10-CM descriptor (FY2026)

Congenital insufficiency of aortic valve

Q23.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Congenital aortic insufficiency

Related codes in Q23

Where this code sits

Chapter: 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
Block: Congenital malformations of the circulatory system (Q20-Q28)
Parent code: Q23

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Source

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.