ICD-10-CM › Chapter 17 Congenital malformations,... › Q90-Q99
Q90-Q99 - Chromosomal abnormalities, not elsewhere classified
88 ICD-10-CM codes sit in this section, of which 74 are billable in FY2027. Every one has a page giving the years it was valid and what to use instead when it is not.
- 88 codes
- 74 billable FY2027
- 14 not billable, retired or subdivided
- 9 categories
Categories
Each of these is a three-character category. Most are not billable on their own - the billable code is one of the children listed on its page.
| Code | Description | Status |
|---|---|---|
| Q90 | Down syndrome | Not billable |
| Q91 | Trisomy 18 and Trisomy 13 | Not billable |
| Q92 | Other trisomies and partial trisomies of the autosomes, not elsewhere classified | Not billable |
| Q93 | Monosomies and deletions from the autosomes, not elsewhere classified | Not billable |
| Q95 | Balanced rearrangements and structural markers, not elsewhere classified | Not billable |
| Q96 | Turner's syndrome | Not billable |
| Q97 | Other sex chromosome abnormalities, female phenotype, not elsewhere classified | Not billable |
| Q98 | Other sex chromosome abnormalities, male phenotype, not elsewhere classified | Not billable |
| Q99 | Other chromosome abnormalities, not elsewhere classified | Not billable |
Or browse all ICD-10-CM codes by first character, check a list of codes with the batch validity checker, or see what changed in each release.