ICD-10 Code I63.131 – Cerebral infarction due to embolism of right carotid artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I63.131 – Cerebral infarction due to embolism of right carotid artery
What it is
This code identifies an ischemic stroke caused by an embolus that blocks the right carotid artery and leads to cerebral infarction. Use it when the documentation clearly links the infarct to embolism in the right carotid artery.
Clinical signs
Typical findings include sudden focal neurologic deficits such as weakness, speech difficulty, facial droop, or vision loss. Clinical features vary; refer to documentation and imaging or specialist assessment when available.
When to use this code
Use this code when the provider documents cerebral infarction due to embolism of the right carotid artery. It is appropriate for confirmed ischemic stroke cases with a right-sided carotid embolic source noted in the record. If the cause or side is unclear, check documentation before assigning a code.
Do not use for
Do not use this code for hemorrhagic stroke, transient ischemic attack, or infarction from a non-embolic cause. If the documentation does not specify the right carotid artery or an embolic mechanism, check documentation.
Coding tip
Confirm both the vascular source and laterality in the provider note before coding.