Cerebral infrc due to thombos unsp middle cerebral artery

This code signifies a stroke resulting from a blood clot obstructing an unspecified middle cerebral artery. This type of cerebral infarction leads to tissue death in the brain region supplied by that artery, causing neurological deficits.

Apply this code when documentation clearly indicates an ischemic stroke caused by thrombosis of a middle cerebral artery, but the laterality (right or left) is not specified. This diagnosis is typically supported by imaging studies (e.g., MRI, CT scan) confirming infarction and clinical findings consistent with stroke.

• Ensure the documentation explicitly states "thrombosis" as the cause of the infarction, not embolism or unspecified occlusion.
• Only use this code when the laterality of the middle cerebral artery is truly unspecified; otherwise, use a more specific code (I63.311 or I63.312).
• Code any associated neurological deficits or sequelae of the stroke separately, following the acute stroke code.