AMA CPT® Assistant - 2013 Issue 5 (May)

Intraoperative Neurophysiology Monitoring (95940 and 95941) (May 2013)

May 2013 pages 8-10 Intraoperative Neurophysiology Monitoring (95940 and 95941) Intraoperative neurophysiologic monitoring (IONM) is defined as the use of electrophysiological methods to monitor the functional integrity of certain neural structures (eg, nerves, spinal cord, and parts of the brain) during surgery. It is widely used in hospitals throughout the United States and can help prevent damage to structures and warn a surgeon of impending complications. Providers typically obtain baseline examinations to establish a pre-intervention reference. This can serve as a reference point to assess if operative interventions have resulted in significant changes to the potentials recorded. IONM services...

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CPT® Assistant content is the official source for CPT® coding guidance. It is an instrumental tool when appealing insurance denials and validating coding to auditors. Monthly issues and an extensive archive provide comprehensive guidance on proper CPT® coding for past, present and upcoming code set releases. Archives date back to 1990 for historical use of codes, changes, rationales, coding tips and trends in the industry.

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