CPT® Code 70134

The CPT® Code 70134 refers to a complete radiologic examination of the internal auditory meati, which are the canals located within the temporal bone. These canals serve as pathways for cranial nerves VII (facial nerve) and VIII (vestibulocochlear nerve) as they travel to the middle and inner ear. The procedure involves the use of X-ray imaging, a technique that employs indirect ionizing radiation to create images of the internal structures of the body. X-rays are particularly effective in imaging non-uniform materials, such as human tissue, due to the varying densities and compositions of different tissues. As X-rays pass through the body, some are absorbed while others are transmitted, allowing for the creation of a two-dimensional image on a detector positioned behind the area being examined. This imaging technique enables the physician to review the resulting radiographs for any signs of abnormalities or diseases, including infections, narrowing of the canals, or the presence of tumors. The comprehensive nature of this examination is crucial for diagnosing conditions that may affect the auditory and vestibular systems.