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Blue Cross & Blue Shield of MississippiAll Plans · Coverage · Medical Policy · Neurology, NeurosurgeryMedium impact

Navigated Transcranial Magnetic Stimulation

Effective date
Not stated in the notice
Identified
Jun 20, 2026

Summary

Navigated transcranial magnetic stimulation is considered investigational for all purposes. This includes preoperative evaluation of individuals being considered for brain surgery when localization of eloquent areas of the brain is an important consideration in surgical planning. Federal Employee Program (FEP) may dictate that FDA-approved devices may not be considered investigational and may be assessed only on the basis of medical necessity.

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What to do

Action · 2 steps
01Billing team: For navigated TMS, check claims using CPT 64999 (Unlisted procedure, nervous system), which this policy lists as an investigational code.
02Navigated TMS is investigational for preoperative planning of brain surgery, and BCBSMS makes no payment for services that are not documented to be Medically Necessary.

Codes mentioned

64999

Original notice

Navigated Transcranial Magnetic Stimulation
bcbsms.com · Always check the source before changing claims.
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