Cerebral infarction due to thombos unsp cerebral artery

This code signifies a stroke caused by a blood clot forming within an unspecified artery in the brain, leading to tissue death. It specifically identifies an ischemic stroke where the precise cerebral vessel involved in the thrombotic event is not documented.

Apply this code when documentation clearly states a cerebral infarction due to thrombosis, but the specific cerebral artery (e.g., middle, anterior, posterior) is not identified. This is appropriate for acute or subacute ischemic strokes where the etiology is thrombotic and the vessel is unknown.

• Do not use this code if the specific cerebral artery involved in the thrombosis is documented; instead, select a more specific I63.3- subcategory.
• Ensure documentation specifies "thrombosis" as the cause of the infarction, not embolism or unspecified occlusion.
• Always sequence this code after any associated symptoms or sequelae if they are the primary reason for the encounter.