Cerebral infarction due to embolism of left cereblr artery

This code signifies a stroke resulting from a blockage in the left cerebellar artery caused by an embolus. An embolus is a detached intravascular mass (e.g., blood clot, air bubble, fat globule) that travels from elsewhere in the body and lodges in a blood vessel, obstructing blood flow. This specific infarction affects the cerebellum, a part of the brain responsible for coordination and balance.

Apply this code when documentation clearly states a cerebral infarction (ischemic stroke) in the left cerebellar artery territory, and the etiology is identified as embolic. Supporting documentation should include imaging reports (e.g., MRI, CT scan) confirming the infarction location and clinical notes indicating an embolic source, such as atrial fibrillation or carotid artery disease.

• Ensure the documentation specifies "left" cerebellar artery; laterality is crucial for accurate coding.
• Confirm the etiology is explicitly stated as "embolism" to differentiate from thrombotic or unspecified causes.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, followed by any associated conditions like atrial fibrillation.