CPT® Code 75665

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The procedure described by CPT® Code 75665 refers to an angiography of the carotid arteries in the cerebral region, specifically performed unilaterally. In this context, 'angiography' is a diagnostic imaging technique that involves the use of a catheter to visualize the blood vessels. The physician begins by inserting a catheter into one of the carotid arteries, which are major blood vessels located on either side of the neck that supply blood to the brain. Once the catheter is in place, a contrast dye is injected into the artery. This dye enhances the visibility of the blood vessels on X-ray images. As the dye circulates through the artery, the physician captures a series of X-ray images, allowing for detailed examination of the arterial structure and any potential abnormalities. This procedure is crucial for diagnosing conditions such as blockages, aneurysms, or other vascular issues affecting cerebral circulation.