Excludes2

  • mitochondrial metabolic disorders (E88.4-)
  1. Q92 Other trisomies and partial trisomies of the autosomes, not elsewhere classified

    1. Q92.0 Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)

    2. Q92.1 Whole chromosome trisomy, mosaicism (mitotic nondisjunction)

    3. Q92.2 Partial trisomy

      Inclusion term(s):

      • Less than whole arm duplicated
      • Whole arm or more duplicated
    4. Q92.5 Duplications with other complex rearrangements

      Inclusion term(s):

      • Partial trisomy due to unbalanced translocations
    5. Q92.6 Marker chromosomes

      Inclusion term(s):

      • Trisomies due to dicentrics
      • Trisomies due to extra rings
      • Trisomies due to isochromosomes
      • Individual with marker heterochromatin
      1. Q92.61 Marker chromosomes in normal individual

      2. Q92.62 Marker chromosomes in abnormal individual

    6. Q92.7 Triploidy and polyploidy

    7. Q92.8 Other specified trisomies and partial trisomies of autosomes

      Inclusion term(s):

      • Duplications identified by fluorescence in situ hybridization (FISH)
      • Duplications identified by in situ hybridization (ISH)
      • Duplications seen only at prometaphase
    8. Q92.9 Trisomy and partial trisomy of autosomes, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.