Q27.9
Congenital malformation of peripheral vascular system, unspecified
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 6 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 5 never code together
Q27code
Excludes2
- anomalies of cerebral and precerebral vessels (Q28.0-Q28.3)Q28.0-Q28.3
- anomalies of coronary vessels (Q24.5)Q24.5
- anomalies of pulmonary artery (Q25.5-Q25.7)Q25.5-Q25.7
- congenital retinal aneurysm (Q14.1)Q14.1
- hemangioma and lymphangioma (D18.-)D18.-
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
Q27.9code
Inclusion terms
- Anomaly of artery or vein NOS
Index entries leading here 7
Alongside this code 6 same parent — Q27
Q27.0 Congenital absence and hypoplasia of umbilical artery Q27.1 Congenital renal artery stenosis Q27.2 Other congenital malformations of renal artery Q27.3 Arteriovenous malformation (peripheral) category Q27.4 Congenital phlebectasia Q27.8 Oth congenital malformations of peripheral vascular system
Medications 4
120 Peripheral Vascular Diseases drugs 50 Peripheral Nervous System Diseases drugs 1 Peripheral Nervous System Neoplasms 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.