Q28: Other congenital malformations of circulatory system
Codes under Q28 (Other congenital malformations of circulatory system). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Q28.0 | Arteriovenous malformation of precerebral vessels | ✓ |
| Q28.0 | Arteriovenous malformation of precerebral vessels | ✓ |
| Q28.1 | Other malformations of precerebral vessels | ✓ |
| Q28.1 | Other malformations of precerebral vessels | ✓ |
| Q28.2 | Arteriovenous malformation of cerebral vessels | ✓ |
| Q28.2 | Arteriovenous malformation of cerebral vessels | ✓ |
| Q28.3 | Other malformations of cerebral vessels | ✓ |
| Q28.3 | Other malformations of cerebral vessels | ✓ |
| Q28.8 | Other specified congenital malformations of circulatory system | ✓ |
| Q28.8 | Other specified congenital malformations of circulatory system | ✓ |
| Q28.9 | Congenital malformation of circulatory system, unspecified | ✓ |
| Q28.9 | Congenital malformation of circulatory system, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code Q28?
Q28 is an ICD-10-CM category covering Other congenital malformations of circulatory system. It contains 12 more specific diagnosis codes, 12 of which are billable.
Is Q28 a billable code?
No — Q28 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example Q28.0 — Arteriovenous malformation of precerebral vessels). 12 of the 12 codes under Q28 are billable.
What codes fall under Q28?
Q28 includes Q28.0, Q28.0, Q28.1, Q28.1, Q28.2, plus 7 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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