HCPCS 95923

Testing of autonomic nervous system function; sudomotor, including at least two of the following: quantitative sudomotor axon reflex test (QSART), silastic sweat imprint, thermoregulatory sweat test, and changes in sympathetic skin potential

AI EXPLANATION: Autonomic nervous system function testing measures how effectively the nerves that control involuntary body functions are working, particularly those regulating sweat glands and skin responses. During this diagnostic evaluation, specialized sensors and techniques assess sweat production, skin temperature, or small electrical changes in the skin in response to mild stimulation, helping clinicians evaluate peripheral autonomic nerve health.