CPT® Code 70370

A radiologic examination of the pharynx or larynx, as described by CPT® Code 70370, involves the use of X-ray technology to obtain images of these critical structures in the throat. This procedure utilizes indirect ionizing radiation to create detailed pictures of the internal anatomy. The principle behind X-ray imaging is based on the varying densities and compositions of human tissues, which affect how X-rays are absorbed or transmitted. As a result, some X-rays are absorbed by denser materials, while others pass through less dense areas, allowing for the creation of a two-dimensional image on a detector positioned behind the area being examined. Standard imaging views typically include posteroanterior and lateral perspectives, although oblique images may also be captured to enhance diagnostic accuracy, particularly when there is a suspicion of disease or abnormal anatomy that may not be evident in standard views. It is important to note that while CPT® Code 70370 encompasses fluoroscopy and magnification techniques, it is specifically limited to the diagnostic evaluation of the pharynx or larynx and does not include assessments of dynamic movements associated with speech. The primary purpose of this code is to visualize any potential pathologies or anatomical irregularities within these regions.