CPT® Code 95866

Needle electromyography (EMG) is a diagnostic procedure that assesses the electrical activity of muscles and the function of the nerves that control them. Specifically, CPT® Code 95866 refers to the performance of needle EMG on the hemidiaphragm, which is one half of the diaphragm muscle that separates the chest cavity from the abdominal cavity. This procedure is crucial for evaluating the functionality of the hemidiaphragm, which plays a vital role in respiration. The evaluation can help identify neuromuscular disorders affecting the diaphragm, such as phrenic nerve injury or diaphragm paralysis. Additionally, needle EMG may be utilized intraoperatively during surgical procedures involving the diaphragm to monitor its function in real-time. During the procedure, a specialized EMG electrode is carefully inserted through the skin and abdominal layers into the diaphragm, allowing for the recording of electrical responses while the patient breathes and holds their breath. The physician then analyzes these recordings and compiles a comprehensive written report detailing the findings, which is essential for further clinical decision-making.