Someone you love has a serious brain injury, and life has changed in ways you probably couldn't have imagined a few weeks ago. Maybe it was a car accident, a fall, a workplace incident, or a medical mistake. Whatever the cause, you're now dealing with hospital visits, unfamiliar medical terms, insurance paperwork, and constant worry.
You may not know whether your loved one will recover fully, what their care will cost for the rest of their life, or whether anyone will be held accountable. Friends and family may tell you it will all work out, but you're the one facing the doctors' appointments, the adjuster's calls, and the quiet worry about tomorrow. At Strype Injury Lawyers, we've guided Ontario families through this exact situation. We understand the medicine behind a brain injury as well as the law, and we're here to walk you through what comes next, one step at a time.
A traumatic brain injury is damage to the brain caused by an external physical force, such as a blow to the head, a violent jolt, or a penetrating injury. An acquired brain injury, or ABI, is the broader category. It includes TBI, but it also covers brain injuries that come from internal causes, such as a lack of oxygen, a stroke, or an infection. This distinction matters in a legal claim because the cause of the injury shapes which laws apply and who might be held responsible.
Severity of a TBI is often measured using the Glasgow Coma Scale (GCS), which scores a person's level of consciousness based on eye, motor, and verbal responses, plus how the pupils react to light. Scores range from 15 (fully awake, responsive, no memory or thinking problems) to 3. A score of 8 or lower usually means the person is in a coma, and the lower the score, the deeper the coma.
|
Severity |
GCS Score Range |
Loss of Consciousness |
Post-Traumatic Amnesia |
Typical Imaging Findings |
|
Mild |
13 to 15 |
Under 30 minutes, or none |
Under 24 hours |
Often normal, occasionally subtle changes |
|
Moderate |
9 to 12 |
30 minutes to 24 hours |
1 to 7 days |
Structural damage visible, such as contusion or bleeding |
|
Severe |
3 to 8 |
More than 24 hours |
More than 7 days |
Significant structural damage, such as diffuse axonal injury |
Traumatic brain injuries in Ontario happen most often in a handful of settings, and the setting affects which insurer or party bears responsibility.
An acquired brain injury from an internal cause, like oxygen deprivation, a stroke, or an infection, follows a different legal path than a TBI from an external force. These injuries often connect to medical negligence, for example when a surgical team fails to monitor oxygen levels, a hospital delays treating a stroke, or birth asphyxia leads to hypoxic-ischemic encephalopathy in a newborn. Our medical malpractice team sees these cases often.
If a medical error may be involved, the evidence needed looks different from a car accident claim, so an early conversation with a lawyer who understands both medicine and law is essential. Our brain injury team handles both TBI and ABI claims and can help you understand which path applies to your situation.
The setting of the injury also determines which forms to file, which insurer is on the hook first, and how quickly you need to act. A car accident triggers accident benefits through your own auto insurer within days, while a fall on someone else's property or a workplace incident follows a different process. Getting this right early protects your ability to recover full compensation later.
TBI affects everyone differently. Symptoms that look mild right after the injury can turn into serious, lasting deficits. Courts and insurers don't just take a person's word for how an injury has affected them. They need expert medical evidence connecting the original injury to its long-term effects, which is why thorough, ongoing medical documentation matters from day one.
Under Ontario's Statutory Accident Benefits Schedule, a severe TBI may qualify for a catastrophic impairment designation. This designation unlocks a combined benefit of up to $1,000,000 for medical, rehabilitation, and attendant care costs together, available for the person's lifetime rather than the standard five year window. Because the designation depends so heavily on how the medical evidence is organized and presented, this is one of the most important and most contested points in a serious TBI claim.
A TBI claim from an Ontario car accident can involve two legal streams at once. The first is accident benefits through your own insurer, available regardless of fault. The second is a tort claim against the at-fault party for damages beyond what accident benefits cover. Both need strong medical evidence and a clear strategy, and pursuing them together usually maximizes your total compensation.
Hospital and emergency records, CT and MRI imaging reports, Glasgow Coma Scale scores taken at the scene and in hospital, and neuropsychological assessments form the foundation of a TBI claim. Every one of these becomes evidence later, so details matter even when they feel routine at the time. Delays in seeking care create gaps in the record, and insurers look for exactly these gaps to argue an injury is less serious than it is, or that something else caused it.
Every person injured in an Ontario car accident is entitled to accident benefits through their own insurer, regardless of fault. For a non-catastrophic injury, the standard combined limit for medical, rehabilitation, and attendant care benefits is $65,000, available for up to five years. If the injury meets the catastrophic impairment threshold, that limit rises to $1,000,000, available for life.
Because that gap can mean hundreds of thousands of dollars, insurers frequently dispute whether a TBI meets the catastrophic threshold. This is one of the most consequential battlegrounds in a serious brain injury case.
A tort claim requires your TBI lawyer to establish four things:
Causation is often the most contested part of a TBI case. Defence lawyers commonly point to pre-existing conditions, a prior head injury, or disputed imaging findings to weaken the link between the accident and your symptoms. A strong causation argument usually needs expert evidence from a neurologist, a neuropsychologist, a physiatrist, and, in severe cases, a life care planner who can project future costs over your lifetime. The stronger and more consistent this evidence is from the earliest medical visit onward, the harder it is for defence counsel to argue that something else caused your injury.
|
Stream |
Who Pays |
Fault Required? |
Coverage Limits |
Key Deadlines |
|
Accident Benefits (SABS) |
Your own auto insurer |
No |
$65,000 combined for non-catastrophic injuries, up to $1,000,000 combined if catastrophic |
Notify your insurer promptly, application deadlines apply after the accident |
|
Tort Claim |
The at-fault party's insurer |
Yes |
No fixed cap for catastrophic or non-vehicle injuries, non-pecuniary damages subject to a cap of about $470,000 |
Two year limitation period from the date of injury |
A TBI claim can include compensation across four main categories, and the total value of a serious brain injury case is often driven more by future losses than by costs already incurred. Insurers tend to focus on the bills you've already paid, but the real financial weight of a severe TBI usually falls years down the road, in the form of care the person will need for decades and income they will never earn.
|
Severity |
Approximate Range |
Key Variables |
|
Mild TBI with lasting symptoms |
$30,000 to $150,000 |
Length of post-concussion syndrome, impact on work capacity |
|
Moderate TBI |
$150,000 to $500,000+ |
Extent of cognitive and physical deficits, income loss |
|
Severe or catastrophic TBI |
$500,000 to several million |
Lifetime care needs, loss of future earning capacity, Family Law Act claims |
These ranges are illustrative examples based on general patterns in Ontario TBI claims, not a guarantee of any particular outcome. The actual value of your case depends on the specific facts, the strength of the medical evidence, and the quality of the legal strategy behind it.
A brain injury case is different from an average personal injury claim, and the lawyer you choose should reflect that difference in several ways.
Catastrophic impairment designation disputes require a lawyer who will challenge an insurer's decision head on. A catastrophic designation is worth hundreds of thousands of dollars in additional benefits, and Strype has the expertise and expert network to fight for that designation when the medical evidence supports it. For clients dealing with spinal cord damage alongside a brain injury, our spinal cord injury lawyers work alongside our brain injury team on the same file.
When choosing a lawyer for a TBI case, look for:
A lawyer without a specific track record in brain injury cases may not know the neuropsychological testing, imaging terminology, or expert network a serious TBI claim needs. That gap can show up later as a lower settlement offer or a weaker position at trial.
A traumatic brain injury reshapes a family's life in ways that go far beyond the hospital stay. The severity of the injury, the quality of the medical evidence behind it, and the experience of the lawyer handling the claim all shape what happens next, from the accident benefits you receive in the first few months to the settlement or trial outcome that may come years later. Strype Injury Lawyers has spent more than 45 years building the medical and legal expertise that serious brain injury cases demand, and we bring that experience to every family we represent.
Legal Disclaimer: The information in this article is intended for general educational purposes only and does not constitute legal advice. Every personal injury claim is unique, and the facts of your situation may affect your legal rights and options. If you have been injured or believe you may have a legal claim, contact a qualified personal injury lawyer in Ontario as soon as possible.