A brain injury claim moves through a predictable series of phases: medical care, evidence preservation, incident reporting, an insurance claim, a demand letter, negotiation, and finally resolution. Understanding each phase in advance helps families make calmer decisions and avoid mistakes that are hard to undo.
The six phases at a glance
Most brain injury claims follow the same path, whether the injury came from a car crash, a fall, a workplace incident, or an assault. The details change; the structure rarely does.
- Medical care. Diagnosis and treatment come first. Everything else waits.
- Evidence preservation. Records, photos, witness names, and a symptom journal begin within days.
- Incident reporting. A police report, employer incident report, or property-owner notice creates an official record.
- Insurance claim. A claim is opened with the at-fault party’s insurer (a third-party claim), your own insurer (a first-party claim), or both.
- Demand and negotiation. Once treatment stabilizes, a demand letter itemizes losses and requests a settlement figure. The insurer responds, usually low, and negotiation follows.
- Resolution. The claim settles, goes to mediation, or proceeds toward a lawsuit if no agreement is reached.
Knowing this map matters because early missteps — skipping medical care, giving a recorded statement, or signing a release — can narrow your options in later phases. The first-72-hours guide walks through the earliest hours in detail.
Phase 1: Get medical care first
No claim exists without medical evidence, and no amount of paperwork substitutes for prompt treatment. If a head injury is suspected, emergency care comes before everything: call 911 or go to an emergency department. The Brain Injury Association of America urges anyone who suspects a TBI to be checked by a medical professional as soon as possible, because secondary injuries — swelling, bleeding, changes in blood flow — can develop after the initial impact.
From a claim perspective, early care also establishes the medical timeline. Gaps between the incident and the first medical visit invite the argument that the injury came from something else or was not serious. Follow-up matters equally: attend scheduled appointments, follow referrals, and keep taking prescribed medication. If symptoms change, tell the provider and make sure the change is written into the record.
One practical note: describe symptoms plainly and completely at every visit, including ones that feel embarrassing, such as mood swings, memory lapses, or personality changes. Medical records are the backbone of a claim, and they can only reflect what was actually said in the exam room.
Phase 2: Preserve evidence early
Evidence is freshest in the first days and degrades quickly — skid marks fade, surveillance footage is overwritten, and memories blur. Start a simple file, physical or digital, and add to it as things happen:
- Medical records and bills. Keep copies of ER records, imaging orders, prescriptions, and every invoice.
- Photos and video. The scene, visible injuries, damaged vehicles or equipment, and hazardous conditions. Date-stamp them if possible.
- A symptom journal. Note headaches, dizziness, sleep problems, mood changes, and missed work or school days, with dates.
- Witness information. Names and phone numbers of anyone who saw the incident or its aftermath.
- Employment records. Pay stubs and a letter from the employer documenting missed time.
The documentation guide expands this into a complete system. You do not need to be thorough on day one — you need to start on day one.
Phase 3: Report the incident in writing
An official report anchors the claim to a specific time, place, and set of facts. What “official” means depends on where the injury happened:
- Car crash: a police report. Get the report number at the scene and order the full report later.
- Workplace injury: a written incident report to the employer, filed as soon as possible, with a copy kept for your records.
- Fall on someone else’s property: a written notice to the property owner or manager, again with a copy kept.
- Assault: a police report.
Keep your written account factual and brief — what happened, where, when, who was present. Avoid speculating about fault or describing the full extent of injuries before a doctor has evaluated them. If an incident form asks you to sign something that looks like a release or waiver, do not sign it on the spot; signing away rights early is one of the costliest mistakes families make.
Phase 4: Open the insurance claim
Once the incident is reported, the insurance claim is opened. There are two basic kinds, and a brain injury case can involve both:
- A third-party claim is filed against the at-fault party’s liability insurance — for example, the other driver’s auto policy after a crash. You are not obligated to cooperate with the other side’s insurer the way you are with your own, but you will need to supply information that validates your losses, such as medical records and proof of missed work.
- A first-party claim is filed under your own policy — for example, medical-payments coverage or uninsured-motorist coverage. Your policy typically requires you to cooperate with your own insurer’s investigation.
Be cautious in early conversations with any adjuster. You can confirm basic facts — the date, location, and that you are receiving medical care — and decline a recorded statement until you have had time to understand the situation. As Nolo’s guide to negotiating injury claims notes, the adjuster’s role is to resolve the claim for as little as the company can justify, not to maximize your recovery.
Keep a log of every interaction: the date, the adjuster’s name, and what was said. If the insurer asks you to sign medical authorizations, read them carefully — a broad authorization can expose your entire medical history, not just records related to the injury.
Phase 5: The demand letter and negotiation
Serious negotiation usually waits until treatment has stabilized — what doctors sometimes call maximum medical improvement — because only then can the full picture of costs be tallied. Settling before the medical story is complete risks leaving future care uncompensated.
The centerpiece of this phase is the demand letter: a written package that lays out what happened, why the other party is responsible, the injuries and treatment received, an itemized list of economic losses (medical bills, lost income), a description of non-economic harm (pain, suffering, lost enjoyment of life), and a specific settlement figure. Strong demand letters are built on the documentation gathered in Phase 2 — medical records, bills, photos, wage documentation, and the police or incident report.
The insurer’s first response is typically well below the demand. That is normal, not a verdict on the claim’s worth. Negotiation then proceeds through counter-offers, with each side testing the other’s position. Most claims resolve somewhere between the original demand and the insurer’s first offer. If the adjuster raises doubts — about fault, about the necessity of treatment, about pre-existing conditions — answer with records, not arguments. This is also the phase where many families consult an attorney, particularly when liability is disputed or the injuries are severe.
Phase 6: Resolution
Resolution takes one of three common forms:
- Settlement. Both sides agree on an amount, the claimant signs a release, and payment follows. Read the release carefully: it generally ends the claim permanently, including claims for future complications.
- Mediation. A neutral mediator helps both sides negotiate, often after a lawsuit is filed but before trial. Many cases settle here.
- Lawsuit. If negotiation fails, a lawsuit may be filed. Filing does not mean a trial is inevitable — negotiation continues, and most filed cases still settle before reaching a courtroom. But filing starts a formal clock, and each state sets its own deadline (the statute of limitations) for doing so, which is why understanding how brain injury claims work and the applicable time limits early is so important.
Whatever form resolution takes, get the final terms in writing before considering the matter closed.
How long does each phase take?
There is no standard timeline. Emergency care and reporting happen in days; documentation continues for months; negotiation often stretches across many weeks once the demand letter goes out; and a filed lawsuit can add a year or more. Two factors dominate the pace: the medical timeline (claims move faster when treatment concludes and the full cost picture is clear) and the degree of disagreement over fault or the value of losses. Patience is not just a virtue here — it is a negotiating position. Rushing to settle before the injury’s full effects are known is one of the most common regrets families report.
Key takeaways
– A brain injury claim follows six phases: medical care, evidence preservation, incident reporting, the insurance claim, demand and negotiation, and resolution.
– Prompt, consistent medical care is both a health necessity and the foundation of the claim.
– Start a simple evidence file in the first days — records, photos, witnesses, and a dated symptom journal.
– Do not give recorded statements or sign releases early; confirm only basic facts with adjusters.
– Serious negotiation waits until treatment stabilizes, so the full cost of the injury can be tallied.
– Get every agreement in writing, and read any release carefully before signing.
Frequently asked questions
Do I need a lawyer to file a brain injury claim?
No — a claim can be opened and negotiated without one. Many families consult an attorney when liability is disputed, injuries are severe, or negotiations stall, because the stakes and complexity rise sharply in those situations.
Should I talk to the other driver’s insurance company?
You can confirm basic facts, but you are not required to give a recorded statement to the other side’s insurer. Anything you say can be used to minimize the claim, so keep early contact brief and factual.
What if I was partly at fault?
Partial fault does not automatically end a claim in most states, but it can reduce the recovery. How fault is shared depends on state law, which is another reason a local attorney’s guidance matters.
Can I still claim if symptoms appeared days later?
Yes. Delayed symptoms are common with brain injuries, and the CDC notes that effects can unfold over time. What matters is getting evaluated promptly once symptoms appear and documenting the connection to the incident.
What is the biggest early mistake families make?
Settling or signing a release before the medical picture is complete. Once a release is signed, the claim is generally over — including coverage for complications that surface later.
This article is general information, not legal or medical advice. It does not create an attorney-client relationship. Consult a qualified attorney about your situation, and see a doctor promptly for any head injury.