Occlusion and stenosis of unspecified middle cerebral artery
ICD-10 I66.09 is a billable code used to indicate a diagnosis of occlusion and stenosis of unspecified middle cerebral artery.
I66.09 refers to occlusion and stenosis of the unspecified middle cerebral artery, a significant condition affecting the cerebral circulation. The middle cerebral artery (MCA) is one of the major arteries supplying blood to the lateral aspects of the cerebral hemispheres, including areas responsible for motor and sensory functions, language, and cognition. Clinical presentation may vary from asymptomatic cases to severe neurological deficits, including hemiparesis, aphasia, or sensory loss, depending on the extent of occlusion or stenosis. Disease progression can lead to ischemic strokes, which may result in permanent disability or death. Diagnostic considerations include neuroimaging techniques such as MRI or CT angiography to visualize the blood flow and identify occlusions or stenosis. Risk factors include hypertension, diabetes, hyperlipidemia, and smoking, which contribute to atherosclerosis and vascular changes. Early detection and management are crucial to prevent complications 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
I66.09 encompasses occlusion and stenosis of the middle cerebral artery without specifying laterality. It includes conditions that may lead to ischemic strokes or transient ischemic attacks (TIAs) due to compromised blood flow.
I66.09 should be used when the specific laterality of the middle cerebral artery occlusion or stenosis is not documented. If the right or left side is specified, the corresponding codes (I66.01 or I66.02) should be used.
Documentation should include clinical findings, imaging results (such as MRI or CT angiography), and any relevant risk factors. Detailed notes on the patient's neurological status and treatment plan are also essential.
