ICD-10 Code I63.441 – Cerebral infarction due to embolism of right cerebellar artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I63.441 – Cerebral infarction due to embolism of right cerebellar artery
What it is
This code identifies an ischemic stroke caused by an embolus blocking the right cerebellar artery. The result is loss of blood flow to part of the right cerebellum, leading to tissue infarction.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include sudden dizziness, gait imbalance, vertigo, nausea, vomiting, limb incoordination, or other focal cerebellar deficits consistent with stroke.
When to use this code
Use this code when the provider documents cerebral infarction due to embolism and specifically identifies the right cerebellar artery as the vessel involved. The record should support an ischemic infarct, not a hemorrhage or transient ischemic attack.
Assign it when imaging, consult notes, or discharge diagnosis clearly link the stroke to an embolic occlusion in that artery. Check documentation if the artery side or embolic cause is not stated.
Do not use for
Do not use this code for hemorrhagic stroke, cerebral thrombosis, or nonspecific cerebral infarction without artery detail. It is also incorrect for symptoms alone without a confirmed infarction diagnosis.
Coding tip
Verify both the embolic mechanism and the right cerebellar artery location before assigning I63.441.