ICD-10-CM · Chapter 17 · Q00-QA1
Q98 Other sex chromosome abnormalities, male phenotype, not elsewhere classified
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| Q98..0 | Klinefelter syndrome karyotype 47, XXY | Yes |
| Q98..1 | Klinefelter syndrome, male with more than two X chromosomes | Yes |
| Q98..3 | Other male with 46, XX karyotype | Yes |
| Q98..4 | Klinefelter syndrome, unspecified | Yes |
| Q98..5 | Karyotype 47, XYY | Yes |
| Q98..6 | Male with structurally abnormal sex chromosome | Yes |
| Q98..7 | Male with sex chromosome mosaicism | Yes |
| Q98..8 | Other specified sex chromosome abnormalities, male phenotype | Yes |
| Q98..9 | Sex chromosome abnormality, male phenotype, unspecified | Yes |
Last reviewed: September 2026