Billing and Coding: Somatosensory Testing

SEP testing should be billed using CPT codes 95925, 95926, 95927, or 95938; intraoperative continuous monitoring during spinal surgery may be billed with CPT 95940 or HCPCS G0453 in conjunction with SEP codes when one-on-one monitoring is provided. Quantitative Sensory Testing (hand-held QST) is not SEP testing and is considered part of evaluation and management (not separately billable); intraoperative monitoring by a technician is not separately reimbursable and multiple/bilateral modifiers do not apply. Detailed, legible medical record documentation (including test recordings, physician interpretation, nerve-specific latencies, and evidence the results influenced treatment) must be maintained and available upon request.

"Somatosensory evoked potential (SEP) testing should be billed using CPT codes 95925, 95926, 95927, or 95938 when an SEP study (not QST) is performed."