CPT® Code 95920

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1. Indications

Intraoperative neurophysiology testing is indicated in various surgical scenarios where there is a potential risk of nerve injury. The following conditions and situations may warrant the use of this testing:

• Spinal Surgery - Procedures involving the spine, where there is a risk of spinal cord or nerve root damage.
• Neurosurgery - Surgeries on the brain or surrounding structures that may affect neurological function.
• Peripheral Nerve Surgery - Operations on peripheral nerves that require monitoring to prevent functional loss.
• Vascular Surgery - Procedures that may compromise blood flow to nerves, necessitating monitoring of nerve function.

2. Procedure

The procedure for intraoperative neurophysiology testing involves several critical steps to ensure accurate monitoring of the patient's neurological status during surgery. Each step is designed to provide real-time data to the surgical team:

• Preparation - Prior to the surgical procedure, the patient is positioned appropriately, and electrodes are placed on the scalp, skin, or other relevant areas to facilitate the monitoring of electrical activity in the nervous system.
• Baseline Measurements - Initial neurophysiological measurements are taken to establish a baseline for comparison during the surgery. This includes assessing the patient's normal nerve function and identifying any pre-existing conditions.
• Continuous Monitoring - Throughout the surgical procedure, the neurophysiologist continuously monitors the electrical activity of the nervous system. This involves analyzing signals from the electrodes and providing real-time feedback to the surgical team regarding any changes in nerve function.
• Intervention - If any abnormalities or significant changes in nerve function are detected, the neurophysiologist communicates these findings immediately to the surgeon. This allows for timely interventions to minimize the risk of nerve damage.
• Post-Procedure Assessment - After the surgery, the neurophysiologist may conduct additional assessments to evaluate the patient's neurological status and ensure that nerve function has been preserved.

3. Post-Procedure

Following intraoperative neurophysiology testing, the patient may require monitoring in a recovery area to assess their neurological function as they awaken from anesthesia. It is essential to evaluate the patient's motor and sensory functions to ensure that no complications have arisen from the surgical procedure. Documentation of the neurophysiological findings during surgery is critical for the medical record, as it provides a comprehensive overview of the patient's neurological status and any interventions that were necessary. Additionally, the surgical team may discuss the results of the neurophysiology testing with the patient and their family, outlining any potential implications for recovery and rehabilitation.