Q24.4

Q24.4: Congenital subaortic stenosis

Billable / specific codeICD-10-CMPOA exempt

Q24.4 is a billable, specific ICD-10-CM code for congenital subaortic stenosis. It is valid for submission on a claim.

Check Q24.4 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above Q24.4

A category’s note binds every code beneath it.

Written on Q24: Other congenital malformations of heart

endocardial fibroelastosis (I42.4)

Other codes that can never be billed with Q24.4

Their own Excludes1 notes name this code, so the conflict is not listed above.

Q23.0Congenital stenosis of aortic valve

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Q24.4 is named in 18 Medicare coverage policies: 18 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
A52868Billing and Coding: Transesophageal Echocardiography (TEE)
A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)

Alphabetic index entries that lead here

Stenosis, stenotic›subaortic(congenital)
Stricture›subaortic
Anomaly, anomalous›heart›valve NEC›aortic›stenosis›subaortic

Code history

Unchanged in every release from FY2024 to FY2027.