2021 ICD-10-CM Codes for Oth trisomies and partial trisomies of the autosomes, NEC (Q92)

Instructional Notations

Includes Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • unbalanced translocations and insertions

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • trisomies of chromosomes 13, 18, 21 Q90 Q91