Q91.4
✓ Billable
Trisomy 13, nonmosaicism (meiotic nondisjunction)
ICD-10-CM · FY2026 · Congenital Malformations, Deformations and Chromosomal Abnormalities
Code
Q91.4
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 Q91.4?
ICD-10-CM code Q91.4 represents Trisomy 13, nonmosaicism (meiotic nondisjunction). It is a billable diagnosis code in the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter, effective October 1, 2025 – September 30, 2026.
Is Q91.4 billable?
Yes. Q91.4 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Q91.4 in?
Q91.4 belongs to the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter (Q00–Q99) of ICD-10-CM.
Related codes in the Q91 category
Q91
Trisomy 18 and Trisomy 13
Non-billable
Q91.0
Trisomy 18, nonmosaicism (meiotic nondisjunction)
Billable
Q91.1
Trisomy 18, mosaicism (mitotic nondisjunction)
Billable
Q91.2
Trisomy 18, translocation
Billable
Q91.3
Trisomy 18, unspecified
Billable
Q91.5
Trisomy 13, mosaicism (mitotic nondisjunction)
Billable
Q91.6
Trisomy 13, translocation
Billable
Q91.7
Trisomy 13, unspecified
Billable
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →