kodex

Kodex

ICD-10-CM
Section

Q90

Down syndrome

Hierarchy

  • Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Q90-Q99 Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
      • Q90 Down syndrome
        • Q90.0 Trisomy 21, nonmosaicism (meiotic nondisjunction)
        • Q90.1 Trisomy 21, mosaicism (mitotic nondisjunction)
        • Q90.2 Trisomy 21, translocation
        • Q90.9 Down syndrome, unspecified

Notes

Q00-Q99

  • Codes from this chapter are not for use on maternal records

Code Also

Q90

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

Use Additional

Q90

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

Excludes 2

Q90-Q99

  • mitochondrial metabolic disorders (E88.4-)
    • E88.4 Mitochondrial metabolism disorders

Q00-Q99

  • inborn errors of metabolism (E70-E88)
    • E70-E88 Metabolic disorders (E70-E88)