Q04.2
✓ Billable
Holoprosencephaly
ICD-10-CM · FY2026 · Congenital Malformations, Deformations and Chromosomal Abnormalities
Code
Q04.2
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 Q04.2?
ICD-10-CM code Q04.2 represents Holoprosencephaly. It is a billable diagnosis code in the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter, effective October 1, 2025 – September 30, 2026.
Is Q04.2 billable?
Yes. Q04.2 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Q04.2 in?
Q04.2 belongs to the Congenital Malformations, Deformations and Chromosomal Abnormalities chapter (Q00–Q99) of ICD-10-CM.
Related codes in the Q04 category
Q04
Other congenital malformations of brain
Non-billable
Q04.0
Congenital malformations of corpus callosum
Billable
Q04.1
Arhinencephaly
Billable
Q04.3
Other reduction deformities of brain
Billable
Q04.4
Septo-optic dysplasia of brain
Billable
Q04.5
Megalencephaly
Billable
Q04.6
Congenital cerebral cysts
Billable
Q04.8
Other specified congenital malformations of brain
Billable
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