Facial weakness following other cerebrovascular disease

This code signifies facial muscle weakness, paresis, or paralysis that occurs as a residual effect of a cerebrovascular event other than a stroke (e.g., transient ischemic attack, cerebral aneurysm rupture, or other non-stroke cerebrovascular disease). It indicates a persistent neurological deficit affecting facial movement after the acute phase of the cerebrovascular incident has passed.

Apply this code when documentation clearly states facial weakness as a sequela of a cerebrovascular disease other than a stroke. This includes conditions like facial droop, inability to close an eye, or difficulty with facial expressions directly attributed to a prior non-stroke cerebrovascular event. Supporting documentation should specify the type of cerebrovascular disease and the resulting facial weakness.

• Ensure the documentation explicitly links the facial weakness to a previous cerebrovascular event, not an acute one.
• Distinguish this from facial weakness due to Bell's palsy (G51.0) or other non-cerebrovascular causes.
• Sequence this code after the code identifying the specific type of other cerebrovascular disease (e.g., I67.1 for cerebral aneurysm, ruptured).