ICD-10 Code I72.6 – Aneurysm of vertebral artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I72.6 – Aneurysm of vertebral artery
What it is
I72.6 identifies a localized dilation or ballooning of the vertebral artery. Use it when documentation states an aneurysm in this specific artery, whether discovered incidentally or during evaluation of symptoms.
Clinical signs
Clinical features vary; refer to documentation. Patients may have neck pain, neurologic symptoms, or findings on vascular imaging that confirm a vertebral artery aneurysm.
When to use this code
Use I72.6 when the provider documents aneurysm of the vertebral artery, including incidental imaging findings. It is also appropriate when the aneurysm is the active diagnosis being evaluated or followed. Code the documented site precisely; check documentation if the artery is described only as cervical or intracranial.
Do not use for
Do not use this code for arterial dissection, stenosis, or general cerebrovascular disease unless an aneurysm is specifically documented. Check documentation if the record refers to another artery or an unspecified vascular abnormality.
Coding tip
Verify the exact vessel named in the report or note before assigning I72.6.