CPT® Code 72170

A radiologic examination of the pelvis, designated by CPT® Code 72170, involves a diagnostic X-ray procedure that captures images of the pelvic region using 1 or 2 views. This examination utilizes indirect ionizing radiation to create visual representations of internal structures within the body. The principle behind X-ray imaging is based on the varying densities and compositions of different materials, such as human tissues. When X-rays are directed towards the body, some rays are absorbed by denser materials like bones, while others pass through softer tissues, resulting in a two-dimensional image. In these images, bones typically appear white due to their density, whereas soft tissues and fluids are represented in various shades of gray. Pelvic X-rays are particularly indicated when patients present with symptoms such as pain or injury in the pelvic or hip joint areas. The primary purpose of this examination is to assess for potential fractures, as well as to detect conditions like arthritis or other bone diseases. During the procedure, the patient is positioned on a table, and different views of the pelvis are obtained by adjusting the positioning of the legs and feet. For instance, the patient may be instructed to turn their feet inward to point towards each other or to bend their knees outward with the soles of their feet together in a 'frog-leg' position. It is important to note that for a complete pelvic X-ray examination involving 3 or more views, CPT® Code 72190 should be reported instead of 72170.