Current
Q23 — Congenital malformations of aortic and mitral valves
Part of Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders , block Congenital malformations of the circulatory system (Q20-Q28) .
Child Codes
- Q23.0 Congenital stenosis of aortic valve Billable
- Q23.1 Congenital insufficiency of aortic valve Billable
- Q23.2 Congenital mitral stenosis Billable
- Q23.3 Congenital mitral insufficiency Billable
- Q23.4 Hypoplastic left heart syndrome Billable
- Q23.8 Other congenital malformations of aortic and mitral valves Has subcodes
- Q23.9 Congenital malformation of aortic and mitral valves, unspecified Billable
Referenced By
Official notes on these codes cite Q23.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS