Q92.1
✓ Billable
Whole chromosome trisomy, mosaicism (mitotic nondisjunction)
ICD-10-CM · FY2026 · Congenital Malformations, Deformations and Chromosomal Abnormalities
Code
Q92.1
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Congenital Malformations, Deformations and Chromosomal Abnormalities
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code Q92.1?
ICD-10-CM code Q92.1 represents Whole chromosome trisomy, mosaicism (mitotic nondisjunction). It is a billable diagnosis code in the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter, effective October 1, 2025 – September 30, 2026.
Is Q92.1 billable?
Yes. Q92.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Q92.1 in?
Q92.1 belongs to the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter (Q00–Q99) of ICD-10-CM.
Related codes in the Q92 category
Q92
Other trisomies and partial trisomies of the autosomes, not elsewhere classified
Non-billable
Q92.0
Whole chromosome trisomy, nonmosaicism (meiotic nondisjunction)
Billable
Q92.2
Partial trisomy
Billable
Q92.5
Duplications with other complex rearrangements
Billable
Q92.6
Marker chromosomes
Non-billable
Q92.7
Triploidy and polyploidy
Billable
Q92.8
Other specified trisomies and partial trisomies of autosomes
Billable
Q92.9
Trisomy and partial trisomy of autosomes, unspecified
Billable
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