ICD-10 Code I63.111 – Cerebral infarction due to embolism of right vertebral artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I63.111 – Cerebral infarction due to embolism of right vertebral artery
What it is
This code identifies an ischemic stroke caused by an embolus blocking the right vertebral artery. Use it when documentation states a cerebral infarction from embolism in that specific artery.
Clinical signs
Typical findings include sudden neurologic deficits consistent with posterior circulation stroke, such as dizziness, ataxia, visual changes, dysarthria, or unilateral weakness. Clinical features vary; refer to documentation.
When to use this code
Assign I63.111 when the provider documents cerebral infarction due to embolism of the right vertebral artery, or clearly links the stroke to that vessel. Use the documented laterality and mechanism, not a generic stroke code, when the record is specific.
Do not use for
Do not use this code for hemorrhagic stroke, transient ischemic attack, or vertebral artery stenosis without infarction. If the record does not specify embolism or right-sided involvement, check documentation.
Coding tip
Verify both the infarction and the embolic cause in the note before assigning I63.111.