Q90.9

Down syndrome, unspecified

Q90.9 is from the 2021 edition of ICD-10-CM, which is effective on October 1, 2020. Q90.9 is the American ICD-10-CM version. Other international versions of the ICD-10 code of Q90.9 may vary.

Billable 2021 ICD-10-CM Diagnosis Code

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[toggle title=’Additional Details’]This code comes under Chapter 17

Chapter 17 contains the following blocks:

  • Q00-Q07 Congenital malformations of the nervous system
  • Q10-Q18 Congenital malformations of eye, ear, face and neck
  • Q20-Q28 Congenital malformations of the circulatory system
  • Q30-Q34 Congenital malformations of the respiratory system
  • Q35-Q37 Cleft lip and cleft palate
  • Q38-Q45 Other congenital malformations of the digestive system
  • Q50-Q56 Congenital malformations of genital organs
  • Q60-Q64 Congenital malformations of the urinary system
  • Q65-Q79 Congenital malformations and deformations of the musculoskeletal system
  • Q80-Q89 Other congenital malformations
  • Q90-Q99 Chromosomal abnormalities, not elsewhere classified

Below is some additional information from Chapter 17

Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Note: Codes from this chapter are not for use on maternal records
Excludes2: inborn errors of metabolism (E70-E88).[/toggle]

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