CPT® Code 93307

Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed, complete, without spectral or color Doppler echocardiography

A complete transthoracic echocardiogram, designated by CPT® Code 93307, is a diagnostic procedure that utilizes ultrasound technology to create real-time images of the heart and its major vessels. This procedure is performed by placing ultrasound transducers on the chest, which emit sound waves that penetrate the body and reflect off internal structures. The varying speeds at which these sound waves return to the transducer are influenced by the different densities of the tissues they encounter. These reflected sound waves are then converted into electrical signals, which are displayed as images on a monitor, allowing for a visual assessment of the heart's anatomy and function.

The echocardiogram provides two-dimensional (2D) image documentation, capturing both the static structure of the heart and the dynamic movement of its components as they function. This comprehensive evaluation includes multiple views of the heart, enabling the assessment of the left and right chambers, the heart valves, the pericardium, and other relevant structures such as the pulmonary valve and the inferior vena cava. Additionally, the procedure may include selective M-mode recording, which offers detailed time-motion information from a stationary ultrasound beam, superimposed on the 2D images. This M-mode recording is particularly useful for obtaining precise cardiac measurements, such as the thickness of the septal walls and the timing of valve movements. If a complete study is not performed, typically due to a focus on a specific area of clinical concern, a follow-up or limited study can be reported using CPT® Code 93308.