Cerebral infarction due to embolism of unsp carotid artery

This code signifies a stroke caused by a blockage (embolism) in an unspecified carotid artery, leading to brain tissue death. It indicates that the specific carotid artery (e.g., right, left, internal, external) involved in the embolic event was not documented.

Use this code when a patient presents with symptoms and diagnostic findings consistent with an ischemic stroke, and imaging or clinical notes confirm an embolic origin from a carotid artery, but the laterality or specific branch of the carotid is not specified. This code is appropriate when the physician's documentation explicitly states "cerebral infarction due to carotid artery embolism, unspecified."

• Ensure documentation clearly states an embolic cause and involvement of a carotid artery, even if unspecified.
• Avoid using this code if the laterality (right/left) or specific carotid artery (e.g., internal, common) is known; instead, use a more specific code from the I63.1- series.
• Always sequence this code after any underlying condition causing the embolism, if known and documented (e.g., atrial fibrillation).