A letter of protection is a promise about who gets paid, not a payment.

LETTER OF PROTECTION

A letter of protection is not a payment. It is a written promise about who gets paid, out of what, and in what order — and it is only worth what the people who signed it are good for.

What the document actually says

A letter of protection, usually shortened to LOP, is an agreement between three parties: the patient, the treating practice, and the patient’s attorney. In substance it says that the practice will treat now without payment at the time of service, and that the attorney will protect the practice’s bill out of any settlement or award before disbursing the remainder to the client.

The letter itself is a contract rather than a court order, and nobody who has not signed it is bound by it. That single fact explains most of what goes wrong with these arrangements.

It sits alongside a separate right rather than replacing one. In Missouri a clinic also has a statutory lien under RSMo 430.225 to 430.250, which attaches to the injured person’s claim without anybody signing anything. The letter governs the administration; the statute supplies the underlying claim. Both are explained on what a medical lien is.

Why it exists at all

The problem it solves is a timing mismatch. A person injured in a crash frequently has treatment they need now and a case that will not resolve for twelve to thirty months. They may have no coverage for the treatment, no savings to fund it, and an injury that does not improve while everyone waits.

For soft tissue that timing gap is not neutral. A tendon left unloaded and untreated for a year is not the same tendon it was, and the metabolic environment it is failing in does not pause while a case proceeds. Treating at the right point in the tissue’s life rather than at the right point in the litigation’s life is the whole argument for the arrangement.

The three signatures, and what each one means

Yours. You are agreeing that the bill is yours, in every outcome. Not if you win. Not if the settlement covers it. In every outcome. That is the part people miss, and it is the part we say out loud rather than leaving in the small print.

Your attorney’s. They are agreeing to hold and disburse from the settlement. An attorney who declines to sign is not being obstructive — they may be telling you something useful about how they read the case.

Ours. We are agreeing to wait, and to fix the amount in advance rather than adjust it upward if the settlement is large. A bill that grows to meet a settlement is a practice worth walking away from. What we are not agreeing to is that the treatment was free if the case fails.

What a letter of protection is not

• It is not insurance. No claim is submitted and no coverage is triggered.
• It is not a contingency. Your obligation does not depend on the case succeeding. A lost case is still a bill.
• It is not a reason to treat. The clinical decision comes first and is unchanged by the existence of a case.
• It is not a blank check. The figure is set before treatment.

The answer to the question everyone asks last

People ask what happens if the case is lost, and they usually ask it at the end. Here is the answer, in advance: you owe the bill. The treatment was provided, the bill is for services rendered, and the outcome of your litigation does not change that.

We are explicit about it for a reason that protects both sides. An arrangement where the bill quietly evaporates on a lost case invites somebody to accumulate treatment and then recast a disappointing result as a clinical failure once the litigation has gone badly. Removing that ambiguity at the start removes the argument at the end.

Ask your attorney the separate question of how the case is actually shaped, and what is realistic. That is information we do not have and should not pretend to.

Why skeptical defense counsel is your problem too

There is a reason letters of protection attract scrutiny. Where treatment volume rises because a case is open, records stop describing a patient and start supporting a claim — and adjusters and defense counsel have learned to discount them accordingly.

The cost of that lands on people with genuine injuries and genuine treatment, whose documentation now carries a discount it did not earn. Which is why what gets written here describes what was found and what was done, in the same words it would have been written in for a self-paying patient. That is not a favor to the defense. It is the only way the record is worth anything.

How it works here, specifically

You are assessed first, on the same basis as anyone else, and told plainly whether you are a candidate. If you are, and a case is open, the arrangement is put in writing with the amount fixed and the failure case addressed. Your attorney signs before treatment rather than after. Nothing is drawn until all three signatures exist.

If your attorney will not sign, we will tell you that you do not have an arrangement, rather than treating on optimism and sending the bill later.

What a usable document contains

Letters of protection vary enormously in quality. A thin one creates arguments later, and the arguments land on the patient. These are the elements that make one worth signing.

• A fixed sum or a defined scope of treatment, rather than an open-ended promise to pay whatever accrues.
• An explicit statement that the patient owes the bill regardless of outcome — not a vague clause that gets argued over once a case has failed.
• The attorney’s undertaking to protect and disburse, signed, rather than an assurance relayed by the client.
• What happens if you change attorneys mid-case, which is more common than people expect.
• What happens if you stop treatment or do not attend.

A document that covers those five is doing its job. One that covers only the first is a promise with the difficult parts left out.

The timing problem nobody mentions

Cases take longer than anyone predicts. Twelve months is optimistic, two years is unremarkable, and a case that goes to trial can run considerably longer. Everybody signing one of these underestimates that interval, which matters for two reasons.

It matters for us, because the wait is what we are absorbing — the obligation itself stays with you throughout. And it matters more for you, because your treatment decisions should be driven by what the tissue needs and when, not by where the litigation has got to. A tendon does not care about a mediation date. If the right clinical answer is to treat now, the arrangement exists so that the timeline of your case does not become the timeline of your recovery.

What people ask about a letter of protection

Is a letter of protection the same as a medical lien?

They overlap and get used interchangeably, but they are not identical. The distinction, and which one applies, is set out on what a medical lien is.

Do I still owe the bill if I lose the case?

Yes. The bill is for services that were rendered, and it does not depend on the outcome of your case. The lien determines when it is paid, not whether it is owed.

That is the subject of A medical lien is not a bill you can ignore. It is a claim on your settlement..

My attorney will not sign one. What now?

Then there is no arrangement, and we will say so rather than treat and hope. It is also worth asking your attorney why — the answer often reflects how they read the case.

There is more on this in Three ways this gets paid for, and one of them surprises people..

Does treating on a letter of protection change what you write in my chart?

No, and that is the point. The record describes the examination and the findings exactly as it would for a self-paying patient. A record written to support a claim is worth less than one written to describe a patient.

The mechanism is covered in The adjuster’s timeline and your tissue’s timeline are not the same timeline..

Related reading

• What a medical lien is
• Paying for treatment
• After a car accident
• Injured at work
• For attorneys
• Am I a candidate?