Occlusion and stenosis of bilateral posterior cerebral arteries
ICD-10 I66.23 is a billable code used to indicate a diagnosis of occlusion and stenosis of bilateral posterior cerebral arteries.
I66.23 refers to the occlusion and stenosis of bilateral posterior cerebral arteries, which are critical vessels supplying blood to the occipital lobe and parts of the temporal lobe of the brain. Clinically, patients may present with symptoms such as visual disturbances, hemianopsia, or cognitive deficits due to compromised blood flow. The anatomy involved includes the posterior cerebral arteries, which branch from the basilar artery and are essential for perfusion of the posterior circulation of the brain. Disease progression can lead to ischemic strokes or transient ischemic attacks (TIAs) if not managed effectively. Diagnostic considerations include imaging studies such as MRI or CT angiography to visualize the occlusion or stenosis and assess collateral circulation. Risk factors for this condition often overlap with other cardiovascular diseases, including hypertension, diabetes, and hyperlipidemia, necessitating a comprehensive approach to patient management.
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
I66.23 covers conditions specifically related to the occlusion and stenosis of both posterior cerebral arteries, which can lead to ischemic events affecting visual and cognitive functions. It is important to differentiate this from occlusions affecting other cerebral arteries.
I66.23 should be used when there is documented occlusion or stenosis affecting both posterior cerebral arteries, as opposed to unilateral conditions which would use I66.21 or I66.22. Accurate imaging and clinical presentation must support this coding.
Documentation should include imaging results (MRI/CT angiography), clinical symptoms (e.g., visual deficits), and any relevant medical history that supports the diagnosis of bilateral posterior cerebral artery occlusion or stenosis.
