Q28
Other congenital malformations of circulatory system
Q28 is a non-billable ICD-10-CM code category for other congenital malformations of circulatory system. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Q28.0 Arteriovenous malformation of precerebral vessels, Q28.1 Other malformations of precerebral vessels, Q28.2 Arteriovenous malformation of cerebral vessels, Q28.3 Other malformations of cerebral vessels and 2 more. Its coding notes include 4 Excludes1 entries and 4 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (1 note)
- inborn errors of metabolism (E70-E88)
Notes
Also from chapter/block level (1 note)
- Codes from this chapter are not for use on maternal records
More specific codes under Q28 6
- Q28.0Arteriovenous malformation of precerebral vesselsBillable
- Q28.1Other malformations of precerebral vesselsBillable
- Q28.2Arteriovenous malformation of cerebral vesselsBillable
- Q28.3Other malformations of cerebral vesselsBillable
- Q28.8Other specified congenital malformations of circulatory systemBillable
- Q28.9Congenital malformation of circulatory system, unspecifiedBillable