CPT® Code 73140

A radiologic examination of the finger(s) involves the use of X-ray imaging to capture detailed images of the bones and soft tissues within the fingers. This procedure requires a minimum of two different views to ensure a comprehensive assessment of the anatomical structures. X-ray imaging operates on the principle of indirect ionizing radiation, which penetrates the body and interacts with various tissues based on their density and composition. As a result, some X-rays are absorbed by denser materials, such as bone, while others pass through less dense tissues, allowing for the creation of a two-dimensional image on a detector positioned behind the area being examined. The primary purpose of this examination is to identify a range of conditions affecting the fingers. Common indications for performing this procedure include the detection of fractures, dislocations of the interphalangeal (IP) joints, deformities, degenerative bone diseases, osteomyelitis, arthritis, the presence of foreign bodies, or tumors. The examination typically includes several standard views: the posteroanterior view, where the palm is placed flat and fingers are extended to visualize the metacarpals and phalanges; the anteroposterior view, which involves positioning the back of the hand against the film with the X-ray beam directed from the palmar side to the dorsal side; and the lateral view, where the ulnar side of the hand is placed on the film cassette with fingers spread to prevent overlap. Additionally, oblique views may be obtained by rotating the radial side of the hand 45 degrees away from the surface while keeping the fingers extended and separated. This comprehensive approach ensures that all relevant structures are adequately visualized for accurate diagnosis and treatment planning.