ICD-10 Code I63.41 – Cerebral infarction due to embolism of middle cerebral artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I63.41 – Cerebral infarction due to embolism of middle cerebral artery
What it is
This code identifies an ischemic stroke caused by an embolus blocking the middle cerebral artery. Use it when documentation states cerebral infarction due to embolism in that artery.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include sudden focal neurologic deficits consistent with middle cerebral artery territory involvement, such as unilateral weakness, facial droop, speech disturbance, or sensory loss.
When to use this code
Use I63.41 when the provider documents cerebral infarction due to embolism of the middle cerebral artery. It fits confirmed ischemic stroke cases where the embolic source is identified or clearly stated. If laterality or additional specificity is documented, code accordingly.
Do not use for
Do not use this code for hemorrhagic stroke, transient ischemic attack, or infarction from thrombosis, stenosis, or unspecified occlusion. Check documentation if the artery or cause is not clearly stated.
Coding tip
Review the provider’s final diagnosis and imaging or discharge summary to confirm embolic middle cerebral artery infarction before assigning this code.