Q23
Congenital malformations of aortic and mitral valves
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Instructional notes
No further instructional notes apply.
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 7
Q23.0 Congenital stenosis of aortic valve Q23.1 Congenital insufficiency of aortic valve Q23.2 Congenital mitral stenosis Q23.3 Congenital mitral insufficiency Q23.4 Hypoplastic left heart syndrome Q23.8 Other congenital malformations of aortic and mitral valves Q23.9 Congenital malformation of aortic and mitral valves, unsp
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.