ICD-10 CM – Browse (Tabular)

Code Title
All Chapters
Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Q90-Q99 Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Q90 Down syndrome
Use Additional
code(s) to identify any associated physical conditions and degree of intellectual disabilities (F70-F79)

Q90.0 Trisomy 21, nonmosaicism (meiotic nondisjunction)
Q90.1 Trisomy 21, mosaicism (mitotic nondisjunction)
Q90.2 Trisomy 21, translocation
Q90.9 Down syndrome, unspecified