Down syndrome - in the ICD-10-CM Index

Browse the ICD-10-CM codes with references applicable to the clinical term "down syndrome"

• Down syndrome - Q90.9 Down syndrome, unspecified

  • meiotic nondisjunction - Q90.0 Trisomy 21, nonmosaicism (meiotic nondisjunction)

  • mitotic nondisjunction - Q90.1 Trisomy 21, mosaicism (mitotic nondisjunction)

  • mosaicism - Q90.1 Trisomy 21, mosaicism (mitotic nondisjunction)

  • translocation - Q90.2 Trisomy 21, translocation

Mosaicism: The occurrence in an individual of two or more cell populations of different chromosomal constitutions, derived from a single ZYGOTE, as opposed to CHIMERISM in which the different cell populations are derived from more than one zygote.