CPT® Code 93313

Echocardiography, transesophageal, real-time with image documentation (2D) (with or without M-mode recording); placement of transesophageal probe only

Transesophageal echocardiography (TEE) is a specialized imaging procedure that utilizes a high-frequency ultrasound transducer, which is mounted on the tip of a flexible tube known as a probe. This probe is carefully inserted through the mouth and advanced into the esophagus, allowing it to be positioned directly behind the heart. The primary function of the transducer is to emit ultrasound waves directed towards the heart. These sound waves bounce back to the transducer after hitting the heart structures, and a computer processes these reflections to create detailed images of the heart, which are displayed on a video monitor. TEE is particularly valuable because it provides real-time ultrasound scanning, enabling the visualization of both the two-dimensional structure of the heart and its dynamic movements as they occur. During the procedure, multiple views of the heart are obtained by adjusting the position of the transducer within the esophagus, facilitating a thorough evaluation of the heart's anatomy and function. This includes assessment of the left and right chambers, the heart valves, the pericardium, and other critical structures such as the aorta, pulmonary vessels, and the vena cava. Additionally, selective M-mode recording, also referred to as T-M mode, can be utilized to provide specific time-motion information from a stationary ultrasound beam, which is superimposed on the 2D images. In this mode, depth is represented along the vertical axis while time is displayed on the horizontal axis, making it particularly useful for precise cardiac measurements, including septal wall thickness and valve timing. It is important to note that CPT® Code 93313 is specifically designated for instances where only the placement of the transesophageal probe is performed, without the accompanying image acquisition or written report of findings. In contrast, CPT® Code 93312 should be used when the physician conducts the probe placement, captures images, and provides a written report. CPT® Code 93314 is applicable when only the image acquisition and report are completed, highlighting the distinct components of the TEE procedure and their corresponding coding requirements.