ICD-10 Code I63.89 – Other cerebral infarction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I63.89 – Other cerebral infarction
What it is
I63.89 identifies a cerebral infarction, or stroke, that does not fit a more specific infarct category. Use it when the record confirms brain tissue ischemia but the exact artery or subtype is not documented.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include sudden focal neurologic deficits such as weakness, speech difficulty, facial droop, vision change, or altered coordination consistent with an acute ischemic event.
When to use this code
Use this code when the provider documents an ischemic stroke or cerebral infarction and no more specific I63 code is supported. It is appropriate when imaging or assessment confirms infarction, but the location or mechanism remains unspecified. Check documentation if the record later identifies a more precise subtype.
Do not use for
Do not use it for hemorrhagic stroke, transient ischemic attack, or cerebral infarction documented with a more specific code. If the cause is clearly stated elsewhere, code that condition instead.
Coding tip
Query for artery territory, laterality, and stroke subtype before defaulting to I63.89.