Q91.3
Q91.3: Trisomy 18, unspecified
Billable / specific codeICD-10-CMPOA exempt
Q91.3 is a billable, specific ICD-10-CM code for trisomy 18, unspecified. It is valid for submission on a claim.
Check Q91.3 with the rest of the claim: free scrubberRisk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
Q91.3 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56781Billing and Coding: Transthoracic Echocardiography (TTE)
- A57306Billing and Coding: Transthoracic Echocardiography (TTE)
Alphabetic index entries that lead here
- Trisomy›18(partial)
- Syndrome›trisomy›18
Code history
Unchanged in every release from FY2024 to FY2027.