Q23Non-billable
Congenital malformations of aortic and mitral valves
Congenital Malformations, Deformations and Chromosomal Abnormalities·Congenital malformations of the circulatory system (Q20-Q28)·category·FY 2026
Use a more specific code (6 billable, 1 non-billable)
Q23.0Congenital stenosis of aortic valveQ23.1Congenital insufficiency of aortic valveQ23.2Congenital mitral stenosisQ23.3Congenital mitral insufficiencyQ23.4Hypoplastic left heart syndromeQ23.8Other congenital malformations of aortic and mitral valveshas subcodesQ23.9Congenital malformation of aortic and mitral valves, unspecified
CH17 Parent Instructions
Excludes2(Not included here. Code separately if applicable.)
Clinical Hierarchy
BillableHas subcodes
MS-DRG Classification
No direct MS-DRG triggers identified.