CPT Codes For Autonomic Function Testing Procedures
Below is a list summarizing the CPT codes for autonomic function testing procedures.
CPT Code 95921
CPT 95921 describes testing of autonomic nervous system function, including cardiovagal innervation (parasympathetic function) with two or more of the following: heart rate response to deep breathing with recorded R-R interval, Valsalva ratio and 30:15 ratio.
CPT Code 95922
CPT 95922 describes autonomic nervous system function testing, including vasomotor adrenergic innervation (sympathetic adrenergic function) with beat-to-beat blood pressure and R-R interval changes during the Valsalva maneuver and at least 5 minutes of passive tilt.
CPT Code 95923
CPT 95923 describes autonomic nervous system function testing, including quantitative sudomotor axon reflex test (QSART), silastic sweat imprint, thermoregulatory sweat test, and changes in sympathetic skin potential.
CPT Code 95924
CPT 95924 describes autonomic nervous system function testing, including combined parasympathetic and sympathetic adrenergic function testing with at least 5 minutes of passive tilt.
