Chromosomal abnormalities, not elsewhere classified - Q90-Q99
Excludes2: This note means that the conditions described by two codes are not usually associated with each other but can sometimes occur together.
Type 2 Excludes:
- mitochondrial metabolic disorders (E88.4-)
These ranges represents Categories of Chromosomal abnormalities, not elsewhere classified. The "Q90-Q99" signifies that these are the diseases within this broad section.
Codes:
- Q90 - Down syndrome
- Q91 - Trisomy 18 and Trisomy 13
- 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