Q28.8

Other specified congenital malformations of circulatory system

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 8 never code together

Q28code

Excludes1

congenital aneurysm NOS (Q27.8)Q27.8
congenital coronary aneurysm (Q24.5)Q24.5
ruptured cerebral arteriovenous malformation (I60.8)I60.8
ruptured malformation of precerebral vessels (I72.0)I72.0

Excludes2

congenital peripheral aneurysm (Q27.8)Q27.8
congenital pulmonary aneurysm (Q25.79)Q25.79
congenital retinal aneurysm (Q14.1)Q14.1

Q28.8code

Excludes2

disorders of pyrophosphate metabolism (E83.82-)E83.82-E83.82-

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 2

Q28.8code

Inclusion terms

Congenital aneurysm, specified site NEC
Spinal vessel anomaly

Index entries leading here 4

Absence (of) (organ or part) (complete or partial)
- ductus arteriosus Q28.8
Agenesis
- ductus arteriosus Q28.8
Anomaly, anomalous (congenital) (unspecified type) Q89.9
- cardiovascular system Q28.8
Pseudoarteriosus Q28.8

Alongside this code 5 same parent — Q28

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 Q28.9 Congenital malformation of circulatory system, unspecified

Medications 2

12 Nervous System Malformations drugs 1 Central Nervous System Vascular Malformations drugs

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.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: Q28
Block: Q20-Q28
Siblings: 5

Present FY2024–FY2027.