CPT® Code 95872

Needle electromyography using single fiber electrode, with quantitative measurement of jitter, blocking and/or fiber density, any/all sites of each muscle studied

Needle electromyography using a single fiber electrode, designated by CPT® Code 95872, is a specialized diagnostic procedure that focuses on the electrical activity of individual muscle fibers. This technique employs a single fiber electrode, which features a recording surface of 25 micrometers (µ) that is exposed at a port on the side of the electrode. The high pass filter set at 500 hertz (Hz) enhances the precision of the recordings. The primary purpose of this procedure is to assess neuromuscular function by measuring action potentials from individual muscle fibers. This allows for the evaluation of critical parameters such as fiber density, neuromuscular jitter, and blocking. Neuromuscular jitter indicates irregularities in the transmission of nerve impulses, while neuromuscular blocking refers to instances where nerve transmission fails. During the procedure, one or more SFEMG electrode needles are strategically placed within the muscle fibers. The muscle is then activated either through voluntary contraction by the patient or via electrical stimulation using a stimulating needle electrode. Recordings are captured from 20 fibers of the same muscle, and these recordings are subsequently analyzed to determine the presence of jitter, blocking, and/or fiber density. The findings from this detailed analysis are compiled into a written report by the physician, providing essential insights into the neuromuscular health of the patient.