ICD-10: Q90

Down syndrome

Coding Guidelines

Code Also

associated physical condition(s), such as atrioventricular septal defect (Q21.2-)

Use Additional Code

code(s) to identify any associated degree of intellectual disabilities (F70-F79)

Subcategories

Q90.9

Down syndrome, unspecified

Q90.2

Trisomy 21, translocation

Q90.0

Trisomy 21, nonmosaicism (meiotic nondisjunction)

Q90.1

Trisomy 21, mosaicism (mitotic nondisjunction)

Related Diseases

neonatal period electroclinical syndrome infancy electroclinical syndrome autosomal dominant disease autosomal genetic disease N syndrome hypomyelinating leukoencephalopathy nonprogressive cerebellar ataxia with mental retardation janus kinase-3 deficiency developmental disorder of mental health 3-M syndrome Vici syndrome chromosomal deletion syndrome chromosome 15q25 deletion syndrome chromosome 6q11-q14 deletion syndrome chromosome 17p13.3 duplication syndrome Yunis-Varon syndrome syndromic X-linked intellectual disability 34 Christianson syndrome syndrome C syndrome Down syndrome familial medullary thyroid carcinoma anauxetic dysplasia 1

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