CPT Codes For Autonomic Function Testing Procedures
CPT codes 95921 to 95924 are used to test different autonomic nervous system functions. 95921 tests parasympathetic function using deep breathing, Valsalva ratio, and 30:15 ratio. 95922 tests sympathetic adrenergic function using Valsalva maneuver and passive tilt. 95923 tests sudomotor function using tests such as QSART, sweat imprint, and skin potential. 95924 tests combined parasympathetic…