Q28
Other congenital malformations of circulatory system
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 7 never code together
Q28code
Excludes1
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes
No further instructional notes apply.
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 6
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 Q28.8 Oth congenital malformations of circulatory system Q28.9 Congenital malformation of circulatory system, unspecified
Medications 2
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.