Q23.9
Q23.9: Congenital malformation of aortic and mitral valves, unspecified
Billable / specific codeICD-10-CMPOA exempt
Q23.9 is a billable, specific ICD-10-CM code for congenital malformation of aortic and mitral valves, unspecified. It is valid for submission on a claim.
Check Q23.9 with the rest of the claim: free scrubberOther codes that can never be billed with Q23.9
Their own Excludes1 notes name this code, so the conflict is not listed above.
- I34Nonrheumatic mitral valve disorders
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
Q23.9 is named in 12 Medicare coverage policies: 12 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
- A56476Billing and Coding: Cardiac Radionuclide Imaging
Alphabetic index entries that lead here
- Anomaly, anomalous›aortic cusp or valve
- Anomaly, anomalous›mitral(leaflets) (valve)
- Malformation›aortic valve
- Malformation›mitral valve
Code history
Unchanged in every release from FY2024 to FY2027.