Cereb infrc due to unsp occls or stenosis of bi verteb art

This code signifies a cerebral infarction (stroke) that has resulted from a blockage or narrowing of both vertebral arteries, where the specific cause of the occlusion or stenosis is not documented. The vertebral arteries are crucial for supplying blood to the brainstem and cerebellum.

Utilize this code when medical record documentation clearly indicates an ischemic stroke attributed to an obstruction or narrowing affecting both vertebral arteries, and the physician has not specified the nature or etiology of that obstruction (e.g., atherosclerosis, embolism). Supporting documentation would include imaging reports confirming infarction and bilateral vertebral artery involvement, along with physician notes specifying "unspecified occlusion/stenosis."

• Ensure documentation explicitly states "bilateral" vertebral artery involvement.
• Do not use this code if the specific cause of the occlusion (e.g., atherosclerosis, dissection) is identified; instead, select a more specific code from the I63.0-I63.6 range.
• Always sequence the cerebral infarction code first, followed by any associated conditions or sequelae.