CPT® Code 73523

A radiologic examination, specifically CPT® Code 73523, involves the imaging of both the left and right hips, and may also include the pelvis when performed. This procedure utilizes X-ray technology, which employs indirect ionizing radiation to create images of the internal structures of the body. 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 pass through the body and are captured on a detector, producing a two-dimensional image that reveals the underlying anatomical structures. This examination is crucial for diagnosing various conditions, including fractures, dislocations, deformities, degenerative bone diseases, osteomyelitis, arthritis, foreign bodies, infections, or tumors. The standard views typically captured during this examination include the anteroposterior view, where the patient lies supine with legs straight and slightly rotated inward; the lateral 'frog-leg' view, which requires the hips to be flexed and abducted with knees bent and soles of the feet together; and a cross-table view, where the unaffected hip and knee are flexed at a 90-degree angle to allow the X-ray beam to be directed perpendicularly to the long axis of the femur on the affected side. Additionally, a lateral view may be taken with the hip flexed and abducted at 45 degrees, with the beam again aimed perpendicularly to the table. A pelvic view is often included, where the patient is supine and both legs are rotated slightly inward, typically about 15 degrees. For coding purposes, it is important to note that CPT® Code 73521 is used for an X-ray examination of both hips consisting of two projections, while CPT® Code 73522 is designated for a bilateral hip X-ray exam with three to four views. CPT® Code 73523 is specifically reserved for a bilateral hip examination that includes a minimum of five views, which may encompass a pelvic view as well.