ICD-10-CM · Chapter 17 · Q00–Q99
Q90.9
Down syndrome, unspecified
Congenital malformations, deformations and chromosomal abnormalities
Quick facts
- Code
- Q90.9
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q90 — Down syndrome
- Specificity
- 4 characters
How coders use this code
ICD-10-CM Q90.9 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of down syndrome, unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in Q90
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