Occlusion and stenosis of posterior cerebral artery
ICD-10 I66.2 is a used to indicate a diagnosis of occlusion and stenosis of posterior cerebral artery.
Occlusion and stenosis of the posterior cerebral artery (PCA) can lead to significant neurological deficits due to compromised blood flow to the occipital lobe and parts of the temporal lobe. Clinically, patients may present with visual disturbances, such as homonymous hemianopia, and cognitive impairments, including memory loss or difficulty in spatial awareness. The PCA is a critical vessel that branches from the basilar artery and supplies blood to the posterior part of the brain. Disease progression may involve gradual narrowing (stenosis) or complete blockage (occlusion) due to atherosclerosis, embolism, or other vascular conditions. Diagnostic considerations include imaging studies such as MRI or CT angiography to visualize the blood flow and identify the extent of occlusion or stenosis. Early diagnosis and intervention are crucial to prevent irreversible brain 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
I66.2 encompasses occlusion and stenosis of the posterior cerebral artery, which may result from atherosclerosis, embolic events, or other vascular disorders affecting cerebral circulation.
I66.2 should be used when there is a confirmed diagnosis of occlusion or stenosis specifically affecting the posterior cerebral artery, differentiating it from anterior or middle cerebral artery conditions.
Documentation should include clinical findings, imaging results showing the occlusion or stenosis, and any relevant patient history that supports the diagnosis.
