Q28 ICD-10-CA category: Other congenital malformations of circulatory system
Q28 isn’t a code on its own. Choose one of the 6 codes beneath it, the one the documentation supports.
Official description
Q28Other congenital malformations of circulatory system
ICD-10-CA · Canada
Codes in Q28
Q28 isn’t a code on its own. Open the code that matches what the note documents.
Q28.0Arteriovenous malformation of precerebral vesselsQ28.1Other malformations of precerebral vesselsQ28.2Arteriovenous malformation of cerebral vesselsQ28.3Other malformations of cerebral vesselsQ28.8Other specified congenital malformations of circulatory systemQ28.9Congenital malformation of circulatory system, unspecifiedNotes for Q28
As CIHI prints them, with any note Q28 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Congenital aneurysm:• NOS (Q27.8)• coronary (Q24.5)• peripheral (Q27.8)• pulmonary (Q25.7)• retinal (Q14.1)ruptured:• cerebral arteriovenous malformation (I60.8)• malformation of precerebral vessels (I72.-)
- Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Where Q28 sits
- 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- 2Block Q20-Q28Congenital malformations of the circulatory system
- 3Category Q28Other congenital malformations of circulatory system
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is Q28 a valid ICD-10-CA code?
No. Q28 (Other congenital malformations of circulatory system) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 6 codes; record the one the documentation supports.
Where is Q28 in ICD-10-CA?
Q28 sits under Q20-Q28 Congenital malformations of the circulatory system, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).
What coding notes apply to Q28?
ICD-10-CA lists Excludes notes for Q28, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside Q28
View Q20-Q28Q20Congenital malformations of cardiac chambers and connectionsQ21Congenital malformations of cardiac septaQ22Congenital malformations of pulmonary and tricuspid valvesQ23Congenital malformations of aortic and mitral valvesQ24Other congenital malformations of heartQ25Congenital malformations of great arteriesQ26Congenital malformations of great veinsQ27Other congenital malformations of peripheral vascular system