| Q96 | Turner's syndrome |
| Q96.0 | Karyotype 45, X |
| Q96.1 | Karyotype 46, X iso (Xq) |
| Q96.2 | Karyotype 46, X with abnormal sex chromosome, except iso (Xq) |
| Q96.3 | Mosaicism, 45, X/46, XX or XY |
| Q96.4 | Mosaicism, 45, X/other cell line(s) with abnormal sex chromosome |
| Q96.8 | Other variants of Turner's syndrome |
| Q96.9 | Turner's syndrome, unspecified |
| Q97 | Other sex chromosome abnormalities, female phenotype, not elsewhere classified |
| Q97.0 | Karyotype 47, XXX |
| Q97.1 | Female with more than three X chromosomes |
| Q97.2 | Mosaicism, lines with various numbers of X chromosomes |
| Q97.3 | Female with 46, XY karyotype |
| Q97.8 | Other specified sex chromosome abnormalities, female phenotype |
| Q97.9 | Sex chromosome abnormality, female phenotype, unspecified |
| Q98 | Other sex chromosome abnormalities, male phenotype, not elsewhere classified |
| Q98.0 | Klinefelter syndrome karyotype 47, XXY |
| Q98.1 | Klinefelter syndrome, male with more than two X chromosomes |
| Q98.3 | Other male with 46, XX karyotype |
| Q98.4 | Klinefelter syndrome, unspecified |
| Q98.5 | Karyotype 47, XYY |
| Q98.6 | Male with structurally abnormal sex chromosome |
| Q98.7 | Male with sex chromosome mosaicism |
| Q98.8 | Other specified sex chromosome abnormalities, male phenotype |
| Q98.9 | Sex chromosome abnormality, male phenotype, unspecified |
| Q99 | Other chromosome abnormalities, not elsewhere classified |
| Q99.0 | Chimera 46, XX/46, XY |
| Q99.1 | 46, XX true hermaphrodite |
| Q99.2 | Fragile X chromosome |
| Q99.8 | Other specified chromosome abnormalities |
| Q99.9 | Chromosomal abnormality, unspecified |