The performance of EMG-NCV studies by non-physicians is governed by the scope of practice defined by the State and the appropriate level of supervision described by Medicare. Many states do not approve for NPPs, stating the needle electromyography is a physician service and must therefore be performed by a physician or under the direct supervision of a physician. The key element in coding intra-operative nerve monitoring is code 95920. This code describes ongoing
electrophysiology testing and monitoring performed during surgical procedures.
Code 95920 is an add-on code and can never be reported by itself. It must always be used together with another code for the specific type of baseline nerve testing, such as EMG testing (95860, 95861, 95867, 95868, and 95870). Code 95920 is defined ‘per hour’. Time spent interpreting accompanying baseline EMG tests
does not count toward the time for 95920; only the additional time spent for nerve monitoring is counted. NCCI edits bundle many of the other EMG codes and 95920 with a variety of peripheral nerve surgical procedures. Physicians should review current NCCI edits when reporting these codes
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