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What Is MMI in Ohio Workers’ Comp?
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Written by Dylan Knisley
Dylan has been a practicing attorney since 2015, when he passed the Ohio Bar and joined the family firm.
Published on
Sept 23, 2026
Table of Contents
Key Takeaways
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MMI means your injury is as good as it is going to get, not that you are healed
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MMI stops your TTD checks, but treatment that keeps you from getting worse may continue.
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An anticipated MMI date on your doctor’s MEDCO-14 can make you MMI automatically on that date if a new date isn’t provided.
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If MMI is being pursued, tell your treating doctor right away.
MMI stands for maximum medical improvement. In Workers’ Comp, it means your injury has stabilized and you are as good as you are going to get, even if you are not fully healed or pain-free.
For injured workers in Ohio, that finding can change temporary total disability checks, medical treatment, and what happens next in a Workers’ Compensation claim. Below, you will see what MMI actually does, how the anticipated MMI date is set, what happens
when doctors disagree about whether you have reached MMI, what to do if MMI is being pursued in your claim, and what may come after MMI, including a permanent partial disability claim.
What Does MMI Mean in Workers’ Comp?
The Ohio Bureau of Workers’ Compensation (BWC) says MMI occurs when a condition has stabilized and further functional improvement is unlikely, despite continued medical treatment or physical rehabilitation. It does not mean you are healed or pain-free. It means your recovery has leveled off.
MMI usually comes up in one of two ways. Your own treating doctor can say you have reached it on the MEDCO-14, the work-ability report the doctor fills out during your care. Or the BWC or your employer can send you to an independent medical exam (IME), and their doctor can say it. Each path is covered below.
What Happens When You Reach MMI in Ohio?
MMI means TTD is stopped, and this is a critical stage because temporary disability payments end and the claim may shift toward evaluations for permanent disability benefits, wage loss benefits, or vocational rehabilitation.
TTD is the check that replaces lost wages after a work injury while you cannot work, and it is only paid while your disability is temporary. For how it compares to the permanent partial benefit, see the difference between TTD and PPD. MMI is also one of several ways TTD can end, covered in how long TTD can last.
Your treatment and your next options change too:
Before MMI | After MMI | |
|---|---|---|
TTD checks | Paid while you cannot work | Stop |
Treatment to make you better | Covered for allowed conditions | Usually ends |
Treatment to keep you from getting worse | Covered | May continue if medically appropriate |
C-92 permanent
partial application | Can be filed 6 months after the last compensation was paid, even before MMI | Can be filed 6 months after the last compensation was paid |
What comes next | Treatment and recovery
continue | Return to work, wage loss if
you earn less, vocational
rehabilitation, or PTD |
Does MMI Mean No More Medical Treatment
Injured workers often think MMI means they can’t get any more treatment. That’s not true. There are times when additional treatment is necessary, like maintenance treatment.
Sometimes if you’re working full duty and that work flares up your pain, you may be entitled to ongoing medical care such as physical therapy or injections, even though you are MMI. Basically, it is treatment to keep you from getting worse and to keep you working.
MMI may end curative treatment when it is no longer helping you improve, but supportive medical care can continue for symptom control. But if that treatment is keeping you from getting worse, then it may continue to be approved and covered.
Each request after MMI still has to be medically appropriate for the allowed conditions in your claim. If a request for maintenance care gets turned down, the steps are similar to when Workers’ Comp denies a medical bill. Ongoing medical expenses may still be covered when that maintenance care remains medically appropriate.
What If You Reach MMI and You Are Still in Pain?
I tell clients that many injured workers still have chronic pain even after they have reached maximum medical improvement, and they may have to deal with this pain the rest of their life. Modern medicine is only so good.
That means they will need to keep this claim alive as long as possible so their ongoing treatment, like pain management, will continue to be covered, because reaching MMI does not mean no ongoing symptoms.
That is a hard thing to hear, and most pages on this topic avoid saying it
What Does the Anticipated MMI Date Mean?
The anticipated MMI date is a question on the MEDCO-14 that the doctor sometimes completes and sometimes doesn’t. It means that on that date, you are declared MMI. So, unless an updated MEDCO-14 is completed that supersedes the prior one, extending the MMI date, then on that date you become MMI.
A lot of people go looking for this date on the C-84, the form you sign to request TTD. It is not there. The C-84 does not ask about MMI. The date is on the MEDCO-14 (Physician’s Report of Work Ability), which only your doctor fills out.
Why Your Doctor May Be Better Off Leaving It Blank
It is not always necessary to fill that part in. If for some reason you miss your appointment (bad weather, the doctor had to reschedule, etc.), a new MEDCO-14 may not get completed, because a doctor doesn’t usually do one except at the appointment. Then, when that date comes without being extended, you are automatically declared MMI on that date, when MMI at that time wasn’t what the doctor intended.
What Happens If the Date Passes by Accident
That doesn’t mean it can’t be fixed. But it will likely create a gap in your TTD payments and in approval of treatments until it is fixed or undone.
If you see a date on your MEDCO-14, ask your doctor about it at your next visit. Keep your appointments, and if one gets canceled, call the doctor to update your period of disability by completing a new MEDCO-14. If your checks stop and you were not expecting it, call an attorney before the gap gets bigger.
What If the IME Doctor Says MMI and Your Doctor Disagrees?
An independent medical exam is done by a doctor chosen by the BWC or your employer, not by you. That doctor’s opinion does not settle the question on its own.
If the BWC or employer doctor says MMI and your treating doctor disagrees, then it goes to hearing. The Industrial Commission will review the medical records and the doctors’ reports and decide whether or not MMI has been reached.
The first hearing is in front of a District Hearing Officer. An appeal goes to a Staff Hearing Officer, and from there it can go to the Full Commission. The Industrial Commission of Ohio explains the process.
What to Do When MMI Is Being Pursued
If you get a notice for an independent medical exam, or you hear that MMI is being raised in your claim, that is the moment to act.
Inform your treating doctor that MMI is being pursued, so the treating doctor has a chance to make it known why you may not be MMI, such as needing additional treatment or testing, and get that ball rolling.
It’s best for the treating doctor to put in treatment requests or request any additional conditions ASAP to prevent MMI. It also helps when the treating doctor provides a rebuttal statement explaining why you are not MMI at this time, for example, because you still need treatment, testing, or to see a specialist.
Pending treatment that was approved but not yet done, for good reason, carries weight. So do additional conditions added after the IME date, because they change the circumstances the IME doctor relied on.
If we go to hearing, the more balls that are rolling, the less likely MMI will be found.
This is also a good time to talk to us. Getting the right requests in front of the hearing officer is a lot easier with a few weeks of notice than with a few days.
What Comes After MMI?
After MMI, it’s time to return to work. If you can’t do the work you were doing, it may be time to find a new job. If you can’t work anywhere, it may be time to pursue permanent total disability (PTD). So it is not just the C-92. You may also be looking at wage loss, vocational rehabilitation, returning to work, PTD, or a settlement.
The C-92 is the application for a permanent partial disability (PPD) award, which seeks compensation for permanent impairment from the allowed conditions in your claim and may involve a permanent impairment rating after MMI.
A C-92 can be filed 6 months after TTD ends. So MMI is like an indicator to start the 6- month clock. But in reality, the TTD ending is when the clock starts. If MMI is found, that is just used as a known date of when TTD stopped, and it also triggers review of disability benefits, though not every worker who reaches MMI receives an impairment rating.
You also do not have to wait for MMI. The C-92 can be filed 6 months after the date of last compensation paid. If you were not hurt badly enough to miss work, you can file 6 months after the date of injury, even if you are still in PT and not MMI yet.
Wage loss can restart that clock. Say that after MMI you go to work somewhere else that accommodates your permanent restrictions, and because of that you are paid, let’s say, half your normal wages. You are entitled to compensation to adjust for that loss. But for a C-92 to be paid, it has to be 6 months since the date of last compensation. Wage loss is compensation, so if you start getting wage loss, the C-92 six-month clock gets reset every time wage loss is paid.
The rating process is its own topic, and we will cover it in a separate article, but in short an impairment rating is assigned after reaching MMI and measures lasting loss in the injured body part or injured body, often under American Medical Association guidelines, which can affect permanent disability or permanent total disability issues; when a permanent impairment rating is used to calculate benefits, the value can also take the average weekly wage into account.
Ohio Workers’ Comp MMI FAQs
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The information on this blog is for general informational purposes only and does not constitute legal advice. Reading this blog or contacting Knisley Law Offices does not create an attorney-client relationship. Prior results do not guarantee a similar outcome.