Q92.6

Marker chromosomes

Non-billable header

Q92.6 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Applicable to

  • Trisomies due to dicentrics
  • Trisomies due to extra rings
  • Trisomies due to isochromosomes
  • Individual with marker heterochromatin

Includes (from Q92)

  • unbalanced translocations and insertions
  • Note: Codes from this chapter are not for use on maternal records

Excludes1

Not coded here — never report together with this code.

  • trisomies of chromosomes 13, 18, 21 (Q90-Q91) (from Q92)

Excludes2

Not included here — may be reported together when both conditions exist.

  • inborn errors of metabolism (E70-E88) (from Q92)
  • mitochondrial metabolic disorders (E88.4-) (from Q92)

Also known as

  • Trisomies due to dicentrics
  • Trisomies due to extra rings
  • Trisomies due to isochromosomes
  • Individual with marker heterochromatin

Parent code

  • Q92Other trisomies and partial trisomies of the autosomes, not elsewhere classifiedHeader

More specific codes Q92.6

  • Q92.61Marker chromosomes in normal individualBillable
  • Q92.62Marker chromosomes in abnormal individualBillable

Related codes

  • Q92.0Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)Billable
  • Q92.1Whole chromosome trisomy, mosaicism (mitotic nondisjunction)Billable
  • Q92.2Partial trisomyBillable
  • Q92.5Duplications with other complex rearrangementsBillable
  • Q92.7Triploidy and polyploidyBillable
  • Q92.8Other specified trisomies and partial trisomies of autosomesBillable
  • Q92.9Trisomy and partial trisomy of autosomes, unspecifiedBillable

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