Cereb infrc due to unsp occls or stenos of unsp cereb artery

This code signifies a stroke resulting from a blockage or narrowing of a cerebral artery, where the specific artery and the nature of the occlusion/stenosis are not documented. It indicates an ischemic stroke of unknown etiology or location within the brain's arterial supply.

Apply this code when documentation confirms a cerebral infarction but lacks specificity regarding the affected cerebral artery (e.g., anterior, middle, posterior) or the precise cause of the occlusion (e.g., thrombosis, embolism). This is appropriate when imaging reports or physician notes state "cerebral infarction due to unspecified cerebral artery occlusion."

• Avoid using this code if more specific information about the artery or occlusion type is available; always query for clarification.
• Do not use for hemorrhagic strokes or transient ischemic attacks (TIAs).
• Sequence this code as the primary diagnosis when it represents the reason for the encounter.