) Down syndrome Trisomy 18 and Trisomy 13 Other trisomies and partial trisomies of the autosomes, not elsewhere classified Monosomies and deletions from the autosomes, not elsewhere classified Balanced rearrangements and structural markers, not elsewhere classified Turner's syndrome Other sex chromosome abnormalities, female phenotype, not elsewhere classified Other sex chromosome abnormalities, male phenotype, not elsewhere classified Other chromosome abnormalities, not elsewhere classified 
