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ICD-10-CM Down syndrome References

"Down syndrome" Annotation Back-References in the ICD-10-CM Index to Diseases and Injuries

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

Applicable Clinical Terms Definitions

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.

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