ICD-10 Code I63.52 – Cerebral infarction due to unspecified occlusion or stenosis of anterior cerebral artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I63.52 – Cerebral infarction due to unspecified occlusion or stenosis of anterior cerebral artery
What it is
This code identifies an ischemic stroke caused by reduced blood flow in an anterior cerebral artery, but the documentation does not specify whether the vessel is blocked or narrowed. Use it when the infarct is confirmed and the artery involved is the anterior cerebral artery.
Clinical signs
Findings may include sudden weakness or numbness, often affecting the leg more than the arm, plus speech or behavioral changes. Clinical features vary; refer to documentation and imaging or provider assessment confirming cerebral infarction.
When to use this code
Use I63.52 when the record states cerebral infarction due to unspecified occlusion or stenosis of the anterior cerebral artery. It is appropriate when the provider identifies the artery but does not document whether the lesion is occlusion or stenosis. Check documentation for laterality, acuity, and any additional stroke details.
Do not use for
Do not use this code for hemorrhagic stroke, transient ischemic attack, or infarction from another cerebral artery. If the chart does not confirm infarction or the anterior cerebral artery, check documentation.
Coding tip
Code only after the provider links the infarction to the anterior cerebral artery and the occlusion or stenosis remains unspecified.