Q28Header code — not billable
Other congenital malformations of circulatory system
- Chapter
- 17. Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q28
- Effective date
- October 1, 2026
Related codes in category Q28
Q28.0Arteriovenous malformation of precerebral vesselsYesQ28.1Other malformations of precerebral vesselsYesQ28.2Arteriovenous malformation of cerebral vesselsYesQ28.3Other malformations of cerebral vesselsYesQ28.8Oth congenital malformations of circulatory systemYesQ28.9Congenital malformation of circulatory system, unspecifiedYes
Frequently asked questions
What is ICD-10 code Q28?
Q28 is an ICD-10-CM diagnosis code for Other congenital malformations of circulatory system.
Is Q28 a billable code?
No. Q28 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is Q28 in?
Q28 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.
When did Q28 become effective?
Q28 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Q28?
Q28 belongs to category Q28, which includes 6 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.