CPT® Code 70220

The CPT® Code 70220 refers to a radiologic examination of the paranasal sinuses, which is a complete study involving a minimum of three views. This procedure is essential for assessing the paranasal sinuses, which are paired, hollow, air-filled cavities located within the facial bones surrounding the nasal cavity. The primary sinuses examined include the frontal sinuses situated in the lower forehead, the maxillary sinuses located in the cheekbones, the ethmoid sinuses found beside the upper nose, and the sphenoid sinuses positioned behind the nose. During this examination, X-rays are utilized to capture images of these structures. X-ray imaging operates on the principle of indirect ionizing radiation, which allows for the visualization of internal body structures by exploiting the varying densities and compositions of human tissues. This differential absorption of X-rays results in a two-dimensional image that reveals the anatomical details of the sinuses. It is important to note that if fewer than three views are obtained, the appropriate code to report is 70210. The use of CPT® Code 70220 is warranted when at least three views are captured, providing a comprehensive examination of the sinuses. The physician interprets these images to identify potential issues such as infections, tumor-like lesions, or fibro-osseous lesions. While conventional radiology has been a standard method for such examinations, it is important to recognize that it has largely been supplanted by more advanced imaging techniques such as computed tomography (CT) or magnetic resonance imaging (MRI), which offer enhanced detail and diagnostic capabilities.