Q23
Q23: Congenital malformations of aortic and mitral valves
Non-billable headerICD-10-CM
Q23 is a non-billable header ICD-10-CM code for congenital malformations of aortic and mitral valves. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with Q23
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead Q23
7 child codes. Green means billable.
- Q23.0Congenital stenosis of aortic valve
- Q23.1Congenital insufficiency of aortic valve
- Q23.2Congenital mitral stenosis
- Q23.3Congenital mitral insufficiency
- Q23.4Hypoplastic left heart syndrome
- Q23.8Other congenital malformations of aortic and mitral valves
- Q23.9Congenital malformation of aortic and mitral valves, unspecified