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ALL MEDICAL CODES IN CATEGORY Q90-Q99 (Chromosomal abnormalities, not elsewhere classified)

2025 ICD-10-CM code Q91

Trisomy 18 and Trisomy 13

2025 ICD-10-CM code Q93.4

Deletion of the short arm of chromosome 5, also known as Cri-du-chat syndrome.

2025 ICD-10-CM code Q98.5

Karyotype 47, XYY is a chromosomal abnormality characterized by an extra Y chromosome.

2025 ICD-10-CM code Q90

Down syndrome, a chromosomal abnormality characterized by an extra copy of chromosome 21.

2025 ICD-10-CM code Q97.1

Female with more than three X chromosomes.

2025 ICD-10-CM code Q97.2

Mosaicism, lines with various numbers of X chromosomes.This is a congenital disorder involving variations in the number of X chromosomes across different cells in the body.

2025 ICD-10-CM code Q93.81

Velo-cardio-facial syndrome, a chromosomal abnormality.

2025 ICD-10-CM code Q93.7

Deletions with other complex rearrangements.This code describes chromosomal deletions occurring alongside other complex chromosomal changes.

2025 ICD-10-CM code Q93.51

Angelman syndrome, a rare neuro-genetic disorder characterized by developmental delays, intellectual disability, speech impairment, movement and balance problems, and a happy demeanor.

2025 ICD-10-CM code Q91.0

Trisomy 18, nonmosaicism (meiotic nondisjunction).

2025 ICD-10-CM code Q96.1

Karyotype 46, isochromosome Xq.

2025 ICD-10-CM code Q97

Other sex chromosome abnormalities with a female phenotype, not specified elsewhere.

2025 ICD-10-CM code Q99

Other chromosome abnormalities not specified elsewhere.

2025 ICD-10-CM code Q98

Other sex chromosome abnormalities resulting in a male phenotype, not otherwise specified.

2025 ICD-10-CM code Q91.1

Trisomy 18, mosaicism (mitotic nondisjunction).

2025 ICD-10-CM code Q95.2

Balanced autosomal rearrangement in an abnormal individual.

2025 ICD-10-CM code Q95.9

Balanced rearrangement and structural marker, unspecified.

2025 ICD-10-CM code Q98.9

Sex chromosome abnormality, male phenotype, unspecified.

2025 ICD-10-CM code Q98.0

Klinefelter syndrome karyotype 47, XXY.

2025 ICD-10-CM code Q90.1

Trisomy 21, mosaicism (mitotic nondisjunction).

2025 ICD-10-CM code Q92.0

Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction).

2025 ICD-10-CM code Q96

Turner syndrome, a chromosomal disorder characterized by the absence of all or part of one X chromosome in females.

2025 ICD-10-CM code Q92.7

Triploidy and polyploidy are chromosomal abnormalities involving an extra set or sets of chromosomes.

2025 ICD-10-CM code Q93.82

Williams syndrome, a genetic disorder.

2025 ICD-10-CM code Q90.9

Down syndrome, unspecified; Trisomy 21 NOS.

2025 ICD-10-CM code Q91.3

Trisomy 18, unspecified.