Thank you for your question.
In CPT® code 95940, a provider other than the surgeon or anesthesia staff conducts neurophysiology tests, such as electroncephalography or EEG, electromyography or EMG, evoked potentials or nerve conduction study, to continuously monitor the patient during the same session as a separately reportable brain surgery. The monitoring is done from within the operating room in a one-on-one setting.
CPT® code 95941 may not be used for Medicare beneficiaries because it allows a provider to remotely monitor several patients at the same time. However, CMS now allows a provider to monitor only one patient at a time, so G0453 is used for continuous remote monitoring for one patient (outside the operating room).
Also, per Medicare Fee Schedule, the code status of this code is “I”, which means “Not valid for Medicare purposes. Medicare uses another code for reporting of, and payment for, these services”.
Note: Kindly contact your commercial payers for specific payment information on intraoperative monitoring.
Now, as per your provided documentation, appropriate code will be G0453. This code covers continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient.
In G0453, continuous neurophysiology monitoring reduces the risk of damage to the patient’s nervous system during an operative procedure. A qualified technologist, typically under the supervision of a physiologist or neurologist, specialist physician providers, records neurophysiologic signals through various types of electrophysiologic modalities, such as somatosensory evoked potentials, which measure signals from specific nerves. The provider should document the duration of monitoring, information regarding the benefits of monitoring during the surgical procedure, and the location of the monitoring provider during the procedure, whether nearby or remote.
Note: Because G0453 is an add on code, payers will not reimburse you if you report it without an appropriate primary code for the operative procedure that required this monitoring.
Hope that helps!