Q92.6 Marker chromosomes

Non-billable header with 2 child codes.

Applicable to

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

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

Includes

• unbalanced translocations and insertions

Excludes1 (never code together)

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

Codes under Q92.6

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

Code annotations containing back-references to Q92.6

Back-references to Q92

• Code First: D84.81 Immunodeficiency due to conditions classified elsewhere ("chromosomal abnormalities (Q90-Q99)")
• Type 1 Excludes: E25 Adrenogenital disorders ("chromosomal abnormalities (Q90-Q99)")
• Type 1 Excludes: Z15 Genetic susceptibility to disease ("chromosomal anomalies (Q90-Q99)")

Nearby codes

• Q92 Other trisomies and partial trisomies of the autosomes, not elsewhere classified
• Q92.0 Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)
• Q92.1 Whole chromosome trisomy, mosaicism (mitotic nondisjunction)
• Q92.2 Partial trisomy
• Q92.5 Duplications with other complex rearrangements
• Q92.6 Marker chromosomes (this code)
• Q92.61 Marker chromosomes in normal individual
• Q92.62 Marker chromosomes in abnormal individual
• Q92.7 Triploidy and polyploidy
• Q92.8 Other specified trisomies and partial trisomies of autosomes
• Q92.9 Trisomy and partial trisomy of autosomes, unspecified