Occlusion and stenosis of right middle cerebral artery
ICD-10 I66.01 is a billable code used to indicate a diagnosis of occlusion and stenosis of right middle cerebral artery.
I66.01 refers to the occlusion and stenosis of the right middle cerebral artery (MCA), a critical vessel supplying blood to a significant portion of the lateral aspect of the cerebral hemisphere. Clinically, patients may present with neurological deficits, including contralateral hemiparesis, sensory loss, and aphasia, depending on the extent of the occlusion and the areas of the brain affected. The MCA is responsible for motor and sensory functions of the face and upper limbs, and its impairment can lead to significant disability. Disease progression may involve gradual stenosis due to atherosclerosis or acute occlusion from embolic events. Diagnostic considerations include neuroimaging techniques such as CT or MRI angiography to visualize the occlusion and assess collateral circulation. Early identification and management are crucial to prevent further neurological damage and improve patient outcomes.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
I66.01 encompasses conditions related to the occlusion or stenosis of the right middle cerebral artery, including ischemic strokes and transient ischemic attacks (TIAs) that specifically affect this artery.
I66.01 should be used when there is confirmed occlusion or stenosis of the right middle cerebral artery, as opposed to I66.00, which is for unspecified middle cerebral artery conditions.
Documentation should include imaging studies confirming the occlusion or stenosis, clinical notes detailing neurological assessments, and any relevant laboratory results that support the diagnosis.
