The following describes how the Missouri workers’ compensation system generally works. It is not legal advice, and rules vary by employer, insurer and circumstance — confirm your specific situation with your employer, your claims adjuster, or an attorney.

How long do I have to report a work injury in Missouri?

Missouri law generally requires you to tell your employer about a work injury within 30 days. Do it in writing. Even a text or an email is worth more than a spoken mention that later gets disputed. The date and how the injury happened matter more than most workers realize at the time. A fall written down the day it happened is a very different claim from the same fall described for the first time three weeks later.

Can my employer choose my doctor in Missouri?

In Missouri, the employer or its insurer generally has the right to pick the treating physician for a workers’ compensation claim, at least at first. That physician’s exam and advice are not automatically suspect just because the employer is paying for the visit. The doctor is still bound by the same medical and ethical standards as anywhere else. What it does mean is this: if you disagree with a diagnosis or a treatment plan, the path to a second opinion runs through the claims process. You cannot simply pick a different doctor on your own. That path is worth understanding before you need it.

Why do pain procedures get denied in workers’ comp?

Surgery for a clear structural injury is generally the easier approval. Think of a torn rotator cuff, or a herniated disc with a matching neurological deficit. That is because the imaging and the injury tell a story that a claims reviewer can follow. Interventional pain care draws more scrutiny. That means diagnostic blocks, radiofrequency ablation, and spinal cord stimulation trials. Part of the reason is that it depends on clinical judgment and diagnostic testing rather than a single scan finding. The other part is that opioid prescribing for injured workers has drawn heavy scrutiny across the industry in recent years. A 2025 study used linked workers’ compensation and prescription monitoring data. It found that injured workers with opioids before their injury were far more likely to remain on opioids long-term after it — a finding that has pushed carriers toward more conservative authorization generally, sometimes catching non-opioid interventional care in the same net. We build the case in writing for why a specific procedure is medically necessary, because that documentation is what moves an approval.

What is an independent medical evaluation (IME)?

An insurer may request an independent medical evaluation (IME). It is usually done by a physician not otherwise involved in your care, to review the diagnosis or the treatment plan. It is a normal part of the process, not an accusation. Go to it as scheduled. Missing it can complicate a claim no matter how strong the medical case is. We prepare patients for what an IME usually covers so it is not a surprise.

Should I keep working on light duty while I heal?

Where it is medically safe, staying at work in a modified or light-duty role is usually better for a patient than complete rest. Deconditioning (losing strength and fitness) and the mental toll of a long time off both work against recovery. Staying engaged in some form of work is associated with better long-term function for most muscle, bone and joint injuries. We write specific, honest work restrictions rather than a blanket “off work” note, because a restriction your employer can actually accommodate protects both your recovery and your paycheck.

Our role in your claim

We record how the injury happened, the exam findings, and the response to each treatment. We do it in enough detail to hold up when a claims reviewer or an IME reads it with doubt. We do not inflate a claim or invent a diagnosis to support one. We do not soften a real one to avoid an argument with a carrier. Where interventional care is truly what the injury needs, we make that case in writing and stand behind it.

Orthobiologics in a Missouri comp claim: who decides, and what the evidence supports

In Missouri the employer or its insurer selects the authorized treating physician. That setup, covered above, also decides how an orthobiologic is weighed. Platelet-rich plasma is the treatment in this group with real evidence behind it. It is the worker’s own blood, concentrated for its platelets, placed under image guidance into the tendon or joint that the job damaged. When this practice is the authorized provider, the request goes to the carrier with the same documentation any other treatment request carries. When it is not, a worker can still be evaluated here at their own expense and take the opinion back into the claim, which the comp statute allows.

The evidence depends on the condition being treated, and we quote it that way. Take the elbow of a worker who grips all day. Think of the lateral epicondylitis (tennis elbow) of a lineman or a packer. It has randomized-trial evidence that PRP beats the alternatives on long-term function and pain. The knee has society consensus on both sides of the Atlantic. It also has a 2025 meta-analysis that found the improvement large enough to be felt in a working day. The rotator cuff has pooled trial evidence showing no clinical benefit, and we do not inject a cuff on the strength of a knee study. The lumbar spine sits between those. The American Society of Interventional Pain Physicians issued a 2025 guideline. It graded disc and epidural PRP as Level III with fair evidence and a moderate recommendation. It rated the facet and sacroiliac joints lower. A forklift operator with a hyperextended knee is a stronger candidate than a carpenter with a torn cuff, and the record says so before anyone asks.

Payment is the carrier’s decision inside the comp system, and outside comp most commercial plans and Medicare do not cover PRP at all; both are funding decisions, and neither is a verdict on the treatment. What we control is the request: the injured structure, the imaging and examination that tie it to the work event, the guideline tier for that structure, the measured function before and after, and the light-duty plan that goes with it. A request written that way can be reviewed on its merits. How your particular claim resolves belongs to your attorney or the Division of Workers’ Compensation, and we will say so rather than guess.

The metabolic evaluation that comes with every work-injury visit here is also what makes an orthobiologic worth doing. The platelets are only as healthy as the worker they came from. It is, not by chance, the part of the plan that most shortens the time to return to work, which is the number the whole system watches.

Common questions

Related reading

• Orthobiologics and PRP injections in St. Louis
• What to expect
• Opioid stewardship
• When injections stop working
• For attorneys
• For physicians