ICD-10-CM › Q00-QA1 › Q90-Q99 › Q96 Turner's syndrome › Q96.4
Mosaicism, 45, X/other cell line(s) with abnormal sex chromosome
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Mosaicism, 45, X/other cell line(s) with abnormal sex chromosome
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from Q96 Turner's syndrome
Excludes1 - never coded here
- Noonan syndrome (Q87.19)
Inherited from the Q90-Q99 section Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Excludes2 - not included here
- mitochondrial metabolic disorders (E88.4-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Mosaicism, mosaic > 45,X/other cell lines NEC with abnormal sex chromosome
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Q96.0 | Karyotype 45, X | Valid |
| Q96.1 | Karyotype 46, X iso (Xq) | Valid |
| Q96.2 | Karyotype 46, X with abnormal sex chromosome, except iso (Xq) | Valid |
| Q96.3 | Mosaicism, 45, X/46, XX or XY | Valid |
| Q96.8 | Other variants of Turner's syndrome | Valid |
| Q96.9 | Turner's syndrome, unspecified | Valid |