Q90 Down's syndrome

Q91 Edwards' syndrome and Patau's syndrome

Q92 Other trisomies and partial trisomies of the autosomes, not elsewhere classified

Q93 Monosomies and deletions from the autosomes, not elsewhere classified

Q95 Balanced rearrangements and structural markers, not elsewhere classified

Q96 Turner's syndrome

Q97 Other sex chromosome abnormalities, female phenotype, not elsewhere classified

Q98 Other sex chromosome abnormalities, male phenotype, not elsewhere classified

Q99 Other chromosome abnormalities,,not elsewhere classified