Cereb infrc due to unsp occls or stenos of right cereblr art

This code signifies a stroke resulting from a blockage or narrowing within the right cerebellar artery, where the specific nature of the occlusion or stenosis is not documented. It indicates ischemic damage to the cerebellum due to impaired blood flow through this particular vessel.

Apply this code when documentation clearly states a cerebral infarction affecting the cerebellum, specifically attributed to the right cerebellar artery, but the physician has not specified whether the cause was an embolism, thrombosis, or other type of occlusion/stenosis. This is appropriate when the laterality (right) is known, but the precise etiology of the vascular obstruction is undetermined.

• Ensure documentation specifies "right cerebellar artery" and "unspecified occlusion or stenosis."
• Do not use if the type of occlusion (e.g., embolic, thrombotic) is clearly documented; instead, select a more specific I63.4- or I63.5- code.
• Always sequence this code after any acute stroke symptom codes (e.g., hemiplegia) if applicable, as it represents the underlying cause.