Q90-Q99
Chromosomal abnormalities, not elsewhere classified
Q90
Down syndrome
Q90.0
Primary diagnosis candidate
Trisomy 21, meiotic nondisjunction
Q90.1
Primary diagnosis candidate
Trisomy 21, mosaicism (mitotic nondisjunction)
Q90.2
Primary diagnosis candidate
Trisomy 21, translocation
Q90.9
Primary diagnosis candidate
Down syndrome, unspecified
Q91
Edwards syndrome and Patau syndrome
Q91.0
Primary diagnosis candidate
Trisomy 18, meiotic nondisjunction
Q91.1
Primary diagnosis candidate
Trisomy 18, mosaicism (mitotic nondisjunction)
Q91.2
Primary diagnosis candidate
Trisomy 18, translocation
Q91.3
Primary diagnosis candidate
Edwards syndrome, unspecified
Q91.4
Primary diagnosis candidate
Trisomy 13, meiotic nondisjunction
Q91.5
Primary diagnosis candidate
Trisomy 13, mosaicism (mitotic nondisjunction)
Q91.6
Primary diagnosis candidate
Trisomy 13, translocation
Q91.7
Primary diagnosis candidate
Patau syndrome, unspecified
Q92
Other trisomies and partial trisomies of the autosomes, not elsewhere classified
Q92.0
Primary diagnosis candidate
Whole chromosome trisomy, meiotic nondisjunction
Q92.1
Primary diagnosis candidate
Whole chromosome trisomy, mosaicism (mitotic nondisjunction)
Q92.2
Primary diagnosis candidate
Major partial trisomy
Q92.3
Primary diagnosis candidate
Minor partial trisomy
Q92.4
Primary diagnosis candidate
Duplications seen only at prometaphase
Q92.5
Primary diagnosis candidate
Duplications with other complex rearrangements
Q92.6
Primary diagnosis candidate
Extra marker chromosomes
Q92.7
Primary diagnosis candidate
Triploidy and polyploidy
Q92.8
Primary diagnosis candidate
Other specified trisomies and partial trisomies of autosomes
Q92.9
Primary diagnosis candidate
Trisomy and partial trisomy of autosomes, unspecified
Q93
Monosomies and deletions from the autosomes, not elsewhere classified
Q93.0
Primary diagnosis candidate
Whole chromosome monosomy, meiotic nondisjunction
Q93.1
Primary diagnosis candidate
Whole chromosome monosomy, mosaicism (mitotic nondisjunction)
Q93.2
Primary diagnosis candidate
Chromosome replaced with ring or dicentric
Q93.3
Primary diagnosis candidate
Deletion of short arm of chromosome 4
Q93.4
Primary diagnosis candidate
Deletion of short arm of chromosome 5
Q93.5
Primary diagnosis candidate
Other deletions of part of a chromosome
Q93.6
Primary diagnosis candidate
Deletions seen only at prometaphase
Q93.7
Primary diagnosis candidate
Deletions with other complex rearrangements
Q93.8
Primary diagnosis candidate
Other deletions from the autosomes
Q93.9
Primary diagnosis candidate
Deletion from autosomes, unspecified
Q95
Balanced rearrangements and structural markers, not elsewhere classified
Q95.0
Primary diagnosis candidate
Balanced translocation and insertion in normal individual
Q95.1
Primary diagnosis candidate
Chromosome inversion in normal individual
Q95.2
Primary diagnosis candidate
Balanced autosomal rearrangement in abnormal individual
Q95.3
Primary diagnosis candidate
Balanced sex/autosomal rearrangement in abnormal individual
Q95.4
Primary diagnosis candidate
Individuals with marker heterochromatin
Q95.5
Primary diagnosis candidate
Individuals with autosomal fragile site
Q95.8
Primary diagnosis candidate
Other balanced rearrangements and structural markers
Q95.9
Primary diagnosis candidate
Balanced rearrangement and structural marker, unspecified
Q96
Turner syndrome
Q96.0
Primary diagnosis candidate
Karyotype 45,X
Q96.1
Primary diagnosis candidate
Karyotype 46,X iso (Xq)
Q96.2
Primary diagnosis candidate
Karyotype 46,X with abnormal sex chromosome, except iso (Xq)
Q96.3
Primary diagnosis candidate
Mosaicism, 45,X/46,XX or XY
