Q92.61
Marker chromosomes in normal individual
Risk-adjusting (HCC)Billable code
HCC risk adjustment mapping
RxHCC V08
RXHCC148
Mild or Unspecified Intellectual Disability/Developmental Disorder
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Inherited from Q92.6Marker chromosomes
Synonyms
Trisomies due to dicentrics Trisomies due to extra rings Trisomies due to isochromosomes Individual with marker heterochromatin
Inherited from Q92Oth trisomies and partial trisomies of the autosomes, NEC
Includes
unbalanced translocations and insertions
Excludes 1
trisomies of chromosomes 13, 18, 21 (Q90-Q91)
Inherited from Q90-Q99Chromosomal abnormalities, not elsewhere classified
Excludes 2
mitochondrial metabolic disorders (E88.4-)
Inherited from chapter 17Congenital malformations, deformations and chromosomal abnormalities
Excludes 2
inborn errors of metabolism (E70-E88)
Note
Codes from this chapter are not for use on maternal records
Official Guidelines for Q92.61
FY 2026 ›Sections that reference Q92.61
Sections whose FY 2026 text names Q92.61, its Q92 category, or a range containing it — the chapter guidance above is the authoritative source.