All PlansCoverageLow impact
Navigated Transcranial Magnetic Stimulation
Blue Cross & Blue Shield of Mississippi·Neurosurgery, Neurology·Medical Policy
We identified it
Jun 20, 2026
Summary
This policy confirms that Navigated Transcranial Magnetic Stimulation (nTMS) remains investigational for all purposes, including preoperative brain mapping. The policy was recently updated but maintains the same coverage determination - nTMS is not covered as it's considered investigational.
Action Required
Billing team should ensure CPT code 64999 (unlisted nervous system procedure) for navigated transcranial magnetic stimulation is flagged as investigational/non-covered. Verify billing system denies these claims and advise providers that nTMS procedures will not be reimbursed as they remain investigational.