TMS for Depression After Medications Have Not Helped: How a Course Is Scheduled, What Prior Authorization Involves and How It Fits Around Residential Care

When depression has not eased after one or more medication trials, someone on the care team may bring up transcranial magnetic stimulation, usually shortened to TMS. For a person who is in residential treatment, or about to be, the first questions tend to be practical ones: how often does it happen, how long does it take, will insurance cover it, and what happens if the course is not finished by discharge day? This article walks through those logistics so you can have a clearer conversation with the psychiatric team.

The Short Answer: A Standard Course Is Daily, Weekdays, for 4 to 6 Weeks

Repetitive transcranial magnetic stimulation (rTMS) for depression is usually given as daily sessions, 5 days a week, for 4 to 6 weeks, according to the National Institute of Mental Health (NIMH). That works out to roughly 20 to 30 weekday visits, and a single session can last anywhere from about 3 to 40 minutes depending on the protocol used. Because a standard course runs longer than a residential stay planned around 30 days, a person who starts TMS during residential treatment often needs a written plan for finishing the course at an outpatient clinic after discharge.

Those figures were checked against the NIMH page on October 9, 2026. NIMH also notes that newer accelerated protocols deliver several sessions in a single day and often work within about a week, though not every clinic offers them and not every plan covers them.

What TMS Is, in Plain Terms

TMS uses an electromagnetic coil held against the scalp to deliver short, repeated magnetic pulses to an area of the brain involved in mood regulation. The pulses create small electrical currents in the targeted nerve cells. Unlike electroconvulsive therapy, TMS does not require anesthesia, and the person is awake and seated for the whole session. NIMH reports that the first TMS device was cleared by the U.S. Food and Drug Administration in 2008 for depression in people who had not responded to at least one antidepressant in their current episode.

TMS is not a first step and it is not a replacement for therapy. A treatment plan that includes it usually continues psychotherapy, medication or both alongside it, and decisions about any of those belong to the prescribing clinician, not to a blog post. You can read more about how depression is assessed and treated on the NIMH depression overview.

What the First Week Actually Feels Like

People are often surprised by how ordinary the room is. There is a reclining chair, a technician, and a coil positioned against one side of the head. The first appointment usually takes longer than the rest because the team measures where the coil goes and how strong the pulses need to be for that person. After that, sessions settle into a routine.

Most people describe the sensation as a repeated knocking or tapping on the head. NIMH lists scalp discomfort, tingling or twitching of the face or jaw muscles during the session, mild headache, lightheadedness and dizziness as common side effects, and says most are mild and short-term when expert guidelines are followed. Serious side effects are uncommon, but the team will screen for risks such as a seizure history or metal implants near the head before starting.

Families tend to notice the rhythm more than anything else. A loved one who was struggling to keep any schedule now has a fixed appointment every weekday. Some families also notice that mood changes, when they come, tend to be gradual over weeks rather than sudden, which is why the team will usually ask the patient to keep rating symptoms on the same questionnaire throughout the course.

Why the Schedule Is the Hard Part

Most of the friction around TMS is logistical rather than medical. Four issues come up again and again when people plan a course around residential care.

• Length mismatch: A standard 4 to 6 week course often outlasts a residential stay, so the second half may need to happen somewhere else.
• Weekday-only visits: Missing several sessions can disrupt the course, so the daily commute after discharge becomes part of the treatment plan.
• On-site availability: Not every residential program offers TMS on its own premises, and some arrange transport to a partner clinic instead.
• Separate authorization: Insurance approval for residential days and approval for TMS are typically two different reviews, and one does not guarantee the other.

None of these is a reason to avoid TMS. They are reasons to plan the whole course, start to finish, before the first session rather than after the last residential day.

What Prior Authorization Usually Involves

Health plans that cover TMS commonly require prior authorization, and their criteria vary. Many ask for documentation that the person has a diagnosis of major depression, has tried one or more antidepressant medications in the current episode without enough improvement or could not tolerate them, and has participated in psychotherapy. The exact number of prior medication trials, the required duration of each trial, and whether accelerated protocols are covered all differ from plan to plan.

The fastest way to know your plan’s rules is to ask for its written medical policy on TMS rather than relying on a phone summary. If you are not sure what your coverage includes for residential care in the first place, you can verify insurance coverage or call 877-883-0780 and ask how residential and outpatient benefits are being checked.

What to Do This Week

If TMS has been mentioned, or you want to ask about it, do these three things before the next appointment.

1. Write down every antidepressant tried during this episode of depression, roughly how long each was taken, and why it was stopped (not enough improvement, side effects, cost). This is the documentation a plan reviewer usually wants, and it is often scattered across several prescribers.
2. Call the number on the back of the insurance card and ask: “Do you have a written medical policy for transcranial magnetic stimulation, and can you send it to me?” Note the date, the representative’s name and any reference number.
3. Ask the psychiatric team the questions below and write the answers down.

Questions to Ask the Psychiatric Team

• Is TMS offered on site, or would I travel to a partner clinic for sessions?
• Which protocol would you use: a standard daily course or an accelerated one?
• If my residential stay ends before the course does, which outpatient clinic would continue it, and has it agreed to accept me?
• Who submits the prior authorization, and what happens to the schedule if it is delayed?
• Which symptom scale will track my progress, and how often will it be repeated?
• What is the plan if I do not notice improvement by the end of the course?

If continuing care closer to home is part of the picture, it helps to understand how outpatient mental health treatment can pick up where a residential program leaves off, including how often visits happen each week.

When Safety Is the Concern

TMS is a scheduled treatment that takes weeks. It is not emergency care, and a residential program is not an emergency service. If you or someone you love is having thoughts of suicide, call or text the 988 Suicide and Crisis Lifeline at 988, or chat at 988lifeline.org, any time of day. If someone is in immediate danger, call 911 or go to the nearest emergency room.

Talking Through Next Steps

If medications have not brought enough relief and you are weighing residential care, TMS or both, a single conversation can sort out what your coverage allows and what the realistic schedule looks like. Call 877-883-0780 to talk through options, admission and how care continues after discharge.

This article is for educational purposes only and is not medical advice. It does not recommend any specific treatment, device or medication. Coverage rules, clinic protocols and program services vary, and the information here may not apply to every situation. Talk with a qualified health care provider about your specific circumstances. If you or someone you know is in crisis, call or text 988, or call 911 in an emergency.