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Responsive Neurostimulation for the Treatment of Refractory Focal Epilepsy

Blue Cross & Blue Shield of Mississippi·MS · Neurology, Neurosurgery·Medical Policy
Effective date
Not stated
We identified it
Jun 20, 2026
Days to comply
—

Summary

BCBS Mississippi updated their policy for Responsive Neurostimulation (RNS) treatment of refractory focal epilepsy, establishing specific medical necessity criteria including age requirements, seizure frequency thresholds, and prior treatment failures. The policy defines when RNS is considered medically necessary versus investigational.

Action Required

Action needed
Immediately: Billing and prior authorization teams must review all RNS device implantation requests to ensure patients meet ALL criteria: 18+ years old, 1-2 localized seizure foci, 3+ disabling seizures monthly for 3 months, failed 2+ antiepileptic medications, not candidates for resective surgery, and no contraindications. Update prior auth workflows to verify these requirements before submission to avoid denials.

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