CPT® Code 70491

Computed tomography (CT), commonly referred to as a CT scan, is a diagnostic imaging procedure that utilizes advanced X-ray technology and computer processing to create detailed cross-sectional images of specific areas within the body. In the context of CPT® Code 70491, the focus is on the soft tissues of the neck. During this procedure, the patient is carefully positioned on a specialized CT examination table. The process begins with an initial scan to establish the starting position for the imaging. Following this, the CT scan is conducted as the table gradually moves through the scanner. This movement allows multiple X-ray beams and electronic detectors to rotate around the neck region, capturing various angles and measuring the amount of radiation absorbed by the tissues. The data collected is then processed by a computer program, which generates two-dimensional images that represent the soft tissues of the neck. These images are displayed on a monitor for the physician's review. The physician may analyze the images in real-time and can request additional scans if further detail is needed for specific areas of interest. It is important to note that CPT® Code 70491 specifically applies when intravenous contrast material is administered prior to the CT scan, enhancing the visibility of structures within the neck. For cases where no contrast is used, CPT® Code 70490 is applicable, and for situations where a non-contrast scan is followed by a contrast-enhanced scan, CPT® Code 70492 should be utilized. The physician is responsible for interpreting the findings from the CT scan, documenting any abnormalities, and providing a comprehensive written report of the results.