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Depression can return after a successful course of TMS, and most insurance plans anticipate that. Coverage for a second acute course, usually called re-treatment, is common when you responded the first time, symptoms have returned, and a minimum interval has passed. Ongoing maintenance sessions, scheduled to prevent relapse rather than to treat an active episode, are covered far less consistently. The practical distinction between those two situations is what determines whether your request is approved.
On this page: Re-treatment coverage · Maintenance coverage · The records that decide it · Planning ahead
Frequently, yes. Plans that cover TMS usually include re-treatment criteria, which typically require documented response to the initial course, a return of symptoms meeting severity thresholds again, and a minimum interval since the last session. Re-treatment needs a fresh prior authorization; the original approval does not carry forward.
Updated August 2026 · Reviewed by Nefretiri Abat, PMHNP-BC
Less often. Maintenance means scheduled sessions, perhaps monthly, intended to hold a remission rather than treat a current episode. Some plans cover a taper following a successful acute course, some cover maintenance under specific conditions, and some exclude it outright. Because the language varies so much, this is worth asking about in writing before you plan around it. Our overview of TMS maintenance and relapse prevention covers the clinical side.
Standardized symptom scores, taken before and after your first course, are the single most important item. They are what proves you responded, which is the threshold most re-treatment criteria hinge on. If your first course was elsewhere, request those records now rather than when you need them. Also useful: the dates and number of sessions completed, the protocol used, and documentation of how long the benefit lasted. The same dose-and-duration logic that governs medication trials applies here, and is explained in what counts as an adequate trial.
Two things make later re-treatment much easier: keeping your own copy of before-and-after scores, and being seen by a practice that documents outcomes systematically in the first place. If symptoms are returning now, an evaluation establishes where you stand and what your plan requires, and if the request is denied, the appeal path is the same one described in our appeals guide. Timelines for a new authorization are covered in how long approval takes. We see patients in Hayward and by telehealth across California.
This article is educational and is not legal or personalized medical advice. Coverage for re-treatment and maintenance varies substantially by plan. Reviewed by Nefretiri Abat, PMHNP-BC, JD.
If re-treatment is not the right answer because the first course did not work, see what happens if neither Spravato nor TMS works.
Often yes. Many plans include re-treatment criteria requiring that you responded to the initial course, that symptoms have returned, and that a minimum interval has passed. Re-treatment always requires a new prior authorization rather than continuing under the original approval.
Maintenance, meaning scheduled sessions to prevent relapse rather than to treat a current episode, is covered less consistently than acute re-treatment. Some plans cover tapering schedules after a successful course while others exclude ongoing maintenance entirely.
Plans commonly specify a minimum interval, often several months, before re-treatment is authorized. The exact requirement varies by plan and appears in the medical necessity criteria you can request in writing.
Evidence that you responded to the first course, documented with standardized symptom scores before and after, plus current scores showing symptoms have returned. Keeping those records from the original course makes the later request substantially easier.
