ICD-10 Code I63.341 – Cerebral infarction due to thrombosis of right cerebellar artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I63.341 – Cerebral infarction due to thrombosis of right cerebellar artery
What it is
This code identifies an ischemic stroke caused by a clot blocking the right cerebellar artery, leading to infarction in the right cerebellum. Use it when documentation specifies thrombosis of that artery as the cause.
Clinical signs
Clinical features vary; refer to documentation. Cerebellar infarction may present with dizziness, gait imbalance, limb incoordination, nausea, or vomiting, but you should code only when the record confirms the vascular territory and thrombotic cause.
When to use this code
Use I63.341 when the provider documents a cerebral infarction due to thrombosis of the right cerebellar artery, including acute or subacute stroke descriptions tied to that vessel. It is appropriate when imaging or clinical assessment supports infarction in the right cerebellar territory. Check documentation if the artery side or mechanism is unclear.
Do not use for
Do not use this code for cerebellar symptoms without confirmed infarction, or when the stroke is due to embolism, stenosis, or hemorrhage. If the record names a different cerebellar artery or does not specify laterality, check documentation.
Coding tip
Match the documented artery, laterality, and mechanism exactly before assigning this code.