ICD-10-CM > Q00-QA0 > Q90-Q99 > Q92 > Q92.6 Q92.6 Marker chromosomes Non-Billable/Non-Specific Applicable To Trisomies due to dicentricsTrisomies due to extra ringsTrisomies due to isochromosomesIndividual with marker heterochromatin Codes Q92.61Marker chromosomes in normal individualQ92.62Marker chromosomes in abnormal individual