Q28 – Other congenital malformations of circulatory system
ICD-10-CM 2027 diagnosis code · Congenital malformations of the circulatory system
ICD-10-CM code
Q28
- Code
Q28(claims format:Q28)- Description
- Other congenital malformations of circulatory system
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q20-Q28 Congenital malformations of the circulatory system
Billable codes under Q28
Q28 is a header code and cannot be used on claims. Choose the most specific code:
- Q28.0 – Arteriovenous malformation of precerebral vesselsBillable
- Q28.1 – Other malformations of precerebral vesselsBillable
- Q28.2 – Arteriovenous malformation of cerebral vesselsBillable
- Q28.3 – Other malformations of cerebral vesselsBillable
- Q28.8 – Other specified congenital malformations of circulatory systemBillable
- Q28.9 – Congenital malformation of circulatory system, unspecifiedBillable
Notes for Q28
Excludes1 (not coded here):
Frequently asked questions
What is ICD-10 code Q28?
Q28 is the ICD-10-CM code for other congenital malformations of circulatory system, in the block Q20-Q28 (Congenital malformations of the circulatory system).
Is Q28 a billable code?
No. Q28 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.