Q04.3Billable
Other reduction deformities of brain
- Chapter
- 17. Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q04
- Effective date
- October 1, 2026
Related codes in category Q04
Q04Other congenital malformations of brainQ04.0Congenital malformations of corpus callosumYesQ04.1ArhinencephalyYesQ04.2HoloprosencephalyYesQ04.4Septo-optic dysplasia of brainYesQ04.5MegalencephalyYesQ04.6Congenital cerebral cystsYesQ04.8Other specified congenital malformations of brainYesQ04.9Congenital malformation of brain, unspecifiedYes
Frequently asked questions
What is ICD-10 code Q04.3?
Q04.3 is an ICD-10-CM diagnosis code for Other reduction deformities of brain.
Is Q04.3 a billable code?
Yes. Q04.3 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Q04.3 in?
Q04.3 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.
When did Q04.3 become effective?
Q04.3 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Q04.3?
Q04.3 belongs to category Q04, which includes 9 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.