CPT® Code 73020

A radiologic examination of the shoulder, designated by CPT® Code 73020, involves the use of X-ray technology to visualize the anatomical structures of the shoulder joint. The shoulder is a complex joint formed by the articulation of the humeral head with the glenoid cavity of the scapula. This examination typically includes standard views such as the anteroposterior (AP) view, which captures the shoulder from the front, and the lateral 'Y' view, which provides a side perspective that resembles the shape of the letter 'Y' due to the positioning of the scapula. In certain cases, an axial view may also be obtained, particularly when the patient can hold their arm in an abducted position, allowing for a more comprehensive assessment of the shoulder's anatomy. The process of X-ray imaging relies on the principles of ionizing radiation, which penetrates non-uniform materials like human tissue. The varying densities and compositions of these tissues result in some X-rays being absorbed while others pass through, ultimately creating a two-dimensional image that reveals the underlying structures. It is important to note that CPT® Code 73020 is specifically used for a single view of the shoulder, while CPT® Code 73030 is applicable when a complete examination is performed, requiring a minimum of two views.