Q992026
Non-billable
Other chromosome abnormalities, not elsewhere classified
Clinical Notes
Frequently Asked Questions
Code Hierarchy
Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Down syndrome
Trisomy 18 and Trisomy 13
Other trisomies and partial trisomies of the autosomes, not elsewhere classified
Monosomies and deletions from the autosomes, not elsewhere classified
Balanced rearrangements and structural markers, not elsewhere classified
Turner's syndrome
Other sex chromosome abnormalities, female phenotype, not elsewhere classified
Other sex chromosome abnormalities, male phenotype, not elsewhere classified
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Related MS-DRGs
50,641 Medicare hospitalizations across 5 DRGs for codes in Q99
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Official Guidelines
Chapter 17: Congenital Malformations
Official coding guidelines for Q00-Q99