CPT® Code 54240

Penile plethysmography is a diagnostic procedure that utilizes a plethysmograph, a specialized device designed to measure blood flow in various parts of the body, specifically focusing on the penis in this context. This procedure is primarily employed to assess erectile dysfunction, a condition characterized by the inability to achieve or maintain an erection sufficient for satisfactory sexual performance. There are two main types of plethysmography used in this evaluation: the volumetric air chamber type and the circumferential transducer type. The volumetric air chamber type involves placing a chamber over the penis, where the device measures the amount of air displaced as the penis becomes erect, providing quantitative data on erectile function. Alternatively, the circumferential transducer type employs a rubber ring filled with mercury or indium/gallium, which is positioned around the shaft of the penis. This method measures changes in diameter as the penis engorges with blood during an erection. After the procedure, the physician analyzes the collected data and generates a written interpretation of the results, which aids in diagnosing the underlying causes of erectile dysfunction.