Q92 Other trisomies and partial trisomies of the autosomes, not elsewhere classified

Category / Non-billable header 10 subcodes

Block: Chromosomal abnormalities, not elsewhere classified (Q90-Q99)

Includes

  • unbalanced translocations and insertions

Excludes 1 (cannot be coded together)

  • trisomies of chromosomes 13, 18, 21 (Q90-Q91)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
Q92..0 Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction) Yes
Q92..1 Whole chromosome trisomy, mosaicism (mitotic nondisjunction) Yes
Q92..2 Partial trisomy Yes
Q92..5 Duplications with other complex rearrangements Yes
Q92..6 Marker chromosomes No
Q92..61 Marker chromosomes in normal individual Yes
Q92..62 Marker chromosomes in abnormal individual Yes
Q92..7 Triploidy and polyploidy Yes
Q92..8 Other specified trisomies and partial trisomies of autosomes Yes
Q92..9 Trisomy and partial trisomy of autosomes, unspecified Yes

Last reviewed: September 2026