ICD-10-CM › Q00-QA1 › Q90-Q99 › Q98 Other sex chromosome... › Q98.9
Sex chromosome abnormality, male phenotype, unspecified
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 Sex chromosome abnormality, male phenotype, unspecified
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 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.
- Cleft
- Extra
- Fused
- Patent
- Trifid
- Triple
- Window
- Aplasia
- Aberrant
- Patulous
- Abnormity
- Asymmetry
- Dysplasia
- Additional
- Herniation
- Lobulation
- Nonclosure
- Nondescent
- Fold, folds
- Rudimentary
- Undescended
- Malformation
- Triplication
- Transposition
- Birth > defect
- Maldevelopment
- Sarcoepiplocele
- Septum, septate
- Union, abnormal
- Imperfect > fusion
- Vestige, vestigial
- Duplication, duplex
- Lesion > congenital
- Pervious, congenital
- Elongated, elongation
- Open, opening > false
- Termination > anomalous
- Heterotopia, heterotopic
- Implantation > anomalous
- Segmentation, incomplete
Showing 40 of 139 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Q98.0 | Klinefelter syndrome karyotype 47, XXY | Valid |
| Q98.1 | Klinefelter syndrome, male with more than two X chromosomes | Valid |
| Q98.3 | Other male with 46, XX karyotype | Valid |
| Q98.4 | Klinefelter syndrome, unspecified | Valid |
| Q98.5 | Karyotype 47, XYY | Valid |
| Q98.6 | Male with structurally abnormal sex chromosome | Valid |
| Q98.7 | Male with sex chromosome mosaicism | Valid |
| Q98.8 | Other specified sex chromosome abnormalities, male phenotype | Valid |