Autonomic Nervous System (ANS) testing is a useful tool both clinically & financially when used appropriately in a medical facility. Although there is a wide variety of use for ANS testing, medical facilities must adhere to the guidelines of use from Medicare & private insurance. Please be aware that regional guidelines vary so we advise that you consult your Local Coverage Determination from Medicare and be aware of the guidelines put forth by each insurance company.
CPT Code 95921 – Parasympathetic Nervous System
Heart rate response to deep breathing with recorded R-R interval, Valsalva ratio and 30:15 ratio.
CPT Code 95922 – Sympathetic Nervous System
Measurement of beat-to-beat blood pressure and R-R interval changes during Valsalva maneuver and at least 5 minutes of passive tilt. This testing involves continuous heart rate recording and requires photoplethysmographic beat-to-beat blood pressure recording.
CPT Code 95943 – Combined Code for Sympathetic & Parasympathetic Nervous System
This combined code is used for testing involves continuous heart rate recording and requires photoplethysmographic beat-to-beat blood pressure recording. The heart rate response to deep breathing with recorded R-R interval, Valsalva ratio and 30:15 ratio. Measurement of beat-to-beat blood pressure and R-R interval changes during Valsalva maneuver.
**We advise that you check with the local Medicare service provider as our research indicates that this code is only paid by 7 of 12 Medicare carriers in the U.S.
CPT Code 95923 – Sudomotor Testing
Sudomotor testing utilizes sympathetic skin response & monitors humidity in the hands and feet via foot electrode.
CPT Code 93922 – Ankle Brachial Index (ABI) Testing for Peripheral Vascular Disease
An ABI exam is a common, yet rather quick assessment of comparing the blood pressure in the ankles to the the brachial pressure of the arm. An ABI is a useful tool for assisting clinicians with early detection & management of peripheral vascular disease.
All Codes are based on Medicare & Private Insurance for 2019. We recommend you check your local carriers for the most accurate guidelines. For more details, click to Download ANS Billing & Reimbursement Guide.