Maximum Medical Improvement (MMI) means your condition has stabilized. It does not mean you are healed, pain free, or able to do your old job. A worker can be at MMI with a fused spine, a repaired rotator cuff that still catches, or a knee that will need replacement in ten years.

In Missouri, the MMI finding comes from the authorized treating physician, the doctor the employer or its insurer selected. That is why the finding so often arrives earlier than the worker expects, and why it warrants a second look before anything is signed. If your doctor has only given you an anticipated MMI date so far, the decisions below are still ahead of you.

MMI is not paperwork. It moves money.

• Temporary disability benefits stop. Temporary total disability (TTD) or temporary partial disability (TPD) checks end at MMI, even if you have not returned to work (RSMo 287.170 and 287.180).
• A permanent disability rating is assigned. The treating doctor rates your impairment as a percentage of the injured body part or of the body as a whole. That rating drives permanent partial disability (RSMo 287.190) or, when you cannot return to any work, permanent total disability (RSMo 287.200).
• Settlement math begins. Insurers usually wait for MMI before making an offer because the rating, your wage rate, and the body-part schedule now give them a formula. A low rating produces a low offer. See how a Missouri workers’ comp case is valued.

Each of those three steps rests on one doctor’s opinion. Change the rating, and the offer changes with it.

No. Missouri law requires the employer to provide medical treatment that is reasonably required to cure and relieve the effects of the injury (RSMo 287.140), and that obligation can continue after MMI for care that maintains your condition: pain management, injections, hardware removal, or a future joint replacement.

The risk is in how the case closes. A lump-sum settlement usually closes future medical along with everything else. A settlement can also leave future medical open, or price it in. Which one you sign determines who pays for the next surgery. Our future medical care page explains the two paths.

An MMI finding is a medical opinion, and opinions can be tested. Three ways to do it:

• A second medical opinion. The insurer is not required to pay for it, but it is often the fastest way to learn whether the release was premature. When a second opinion makes sense.
• An independent medical examination through your attorney. The IME report becomes evidence at the Missouri Division of Workers’ Compensation and can support a different rating, different restrictions, or continued treatment.
• A hardship hearing. If benefits were cut off and treatment refused, your attorney can ask an administrative law judge to order them reinstated while the case continues.

The doctor who declared MMI was chosen by the insurer. Read why the company doctor is not your doctor before you accept the rating as final.

In 2025 alone, our firm spent over $700,000 on expert witnesses. When the insurer’s doctor says you are done improving and rates your injury low, we retain independent experts, take depositions, and build the medical record that proves the restrictions, ongoing pain, and future care their doctors will not put on paper.

Our firm handled roughly 1 in 4 of recent workers’ compensation trials at the St. Louis Division of Workers’ Compensation, out of hundreds of attorneys representing Missouri workers. Insurers know which firms will actually try a case, and it changes how they negotiate a rating dispute.

That is the practical difference a trial firm makes at MMI: the finding can be premature, the rating can be challenged, and a settlement can reflect the severity of your condition rather than the insurer’s timeline.

The weeks after an MMI finding decide most of a claim’s value. Four steps protect it:

• Get the release and the rating in writing, including every permanent restriction.
• Ask whether future medical care is being recommended, and make sure the answer is in the records.
• Do not sign a settlement or a full release until the rating has been reviewed by someone who does not work for the insurer.
• Talk with a Missouri workers’ comp attorney before the first offer, not after. Free consultation: (314) 361-4300.

Can I be forced to return to work after MMI?

Your employer can offer work within your permanent restrictions, and refusing suitable work can affect benefits. It cannot require you to work outside the restrictions in your release. If the restrictions themselves are wrong, that is a rating dispute, not a job dispute. See your rights on returning to work.

Should I settle before or after reaching MMI?

Almost always after. Before MMI, nobody knows the rating, the restrictions, or the future medical need, so a pre-MMI offer prices the unknown at the insurer’s number. More on settling before or after MMI.

Can I get vocational rehabilitation after MMI?

Missouri does not automatically provide retraining or job placement. It can be part of a negotiated resolution, and permanent restrictions that keep you from your old job are one of the strongest reasons to raise it. Read about vocational rehabilitation after a workplace injury.

Can an MMI finding be reversed?

Yes. A second opinion or IME can conclude you are not at MMI and that further treatment is needed. If the insurer refuses, the dispute goes to the Division of Workers’ Compensation, where an administrative law judge decides. Every case is different, and results depend on the facts.