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Billing and Coding: Intraoperative Neurophysiological Testing
A57604
Wisconsin Physicians Service Insurance Corporation (J05)
Effective: February 1, 2024
Updated: December 31, 2025
See LCD L34623Policy Summary
Billing and coding for intraoperative neurophysiological testing follow the coverage and medical necessity criteria in LCD L34623. Extensive documentation is required in the patient medical record (legible, identified, provider-identified, monitoring time correlated to surgery, and supporting diagnosis and CPT/HCPCS codes). Monitoring performed by the operating surgeon is not billed separately because it is included in the surgery's global package.
Coverage Criteria Preview
Key requirements from the full policy
"Intraoperative neurophysiological testing is billable only when coverage criteria and medical necessity in related LCD L34623 are met."
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