Q90.9
Q90.9: Down syndrome, unspecified
Billable / specific codeICD-10-CMPOA exempt
Q90.9 is a billable, specific ICD-10-CM code for down syndrome, unspecified. It is valid for submission on a claim.
Check Q90.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Trisomy 21 NOS
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
Q90.9 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56781Billing and Coding: Transthoracic Echocardiography (TTE)
Alphabetic index entries that lead here
- Down syndrome
- Syndrome›Down
- Trisomy›21(partial)
- Syndrome›trisomy›21
Code history
Unchanged in every release from FY2024 to FY2027.