Brain Injury Guide: Types, Treatment, and Florida Legal Options

Why Brain Injury Is Different From Other Catastrophic Injuries

A brain injury is uniquely difficult to prove and uniquely expensive to live with. There is rarely a visible scar, symptoms can be subtle and delayed, and the worst deficits are cognitive rather than physical. Insurers are experienced at arguing that a claimed brain injury is exaggerated, and juries are reluctant to award large sums for an injury they cannot see. That combination is why experienced plaintiff lawyers treat brain injury cases as a distinct discipline.

How Severity Is Measured

Severity is conventionally graded on the Glasgow Coma Scale (GCS), which scores eye opening, verbal response, and motor response for a total of 3 to 15:

• Severe: 3 to 8. The patient is unresponsive to pain, has no verbal response, and shows no purposeful movement. Severe injury implies a period of very low blood flow or oxygen and carries the worst prognosis.
• Moderate: 9 to 12. The patient shows abnormal flexion or extension responses and confused verbal output.
• Mild: 13 to 15. Eye opening is spontaneous or to verbal cues, verbal response is confused, and motor response is localising.

A word of caution about the word "mild." Mild traumatic brain injury is defined by a low score at the scene, not by a mild course. Symptoms of mild TBI - headache, dizziness, irritability, difficulty concentrating, sleep disturbance - frequently persist for months or years, and repeated concussions carry cumulative risk. Insurers routinely use the "mild" label to argue for a small award; the label does not describe the impairment.

The Major Types

Concussion

A mild TBI that temporarily disrupts brain function without structural damage on imaging. Because imaging is often normal, a concussion is diagnosed clinically, which is precisely why it is missed. Undiagnosed repeated concussions are associated with long-term cognitive and behavioural change.

Contusion

A bruise of brain tissue caused by the brain striking the interior of the skull. Contusions swell, raise intracranial pressure, and frequently require surgical evacuation. A contusion is a more serious structural injury than a concussion.

Diffuse axonal injury

Caused by rapid shearing of the brain within the skull, diffuse axonal injury tears nerve fibres across wide areas. It is a leading cause of persistent vegetative state after motor vehicle collisions and can occur at relatively low speeds because the injury comes from rotational acceleration rather than direct impact.

Anoxic and hypoxic injury

Damage from loss of oxygen supply, as in cardiac arrest, respiratory failure, near-drowning, or a choking injury. Anoxic injury is frequently catastrophic and diffuse, affecting memory and executive function even when motor function appears preserved.

Penetrating injury

An object breaches the skull and enters brain tissue, carrying a high risk of infection and of focal neurological deficit. These cases raise distinct product or premises liability questions in addition to the injury claim.

What Determines the Long-Term Outlook

Prognosis turns on factors that are documented early and are often disputed later:

• Intracranial pressure and the need for surgical decompression. Sustained elevation is a poor prognostic sign.
• Length of the period of low blood flow or oxygen. In cardiac arrest, every minute of untreated arrest matters.
• Post-traumatic amnesia duration. The length of time the patient cannot form new memories is one of the strongest predictors of long-term outcome.
• Age. The brain's limited capacity to reorganise declines with age, so identical injuries produce different outcomes.
• Injury location and diffuse axonal involvement. Frontal and temporal lobe injury is associated with executive and personality change.
• Pre-existing conditions and prior concussions. Relevant to defence arguments about apportionment.

Early documentation matters more in brain injury cases than in almost any other. Obtain the GCS scores from the scene and emergency department, the CT and MRI reports, the neurosurgical notes, and the rehabilitation records. Disputes frequently turn on what was recorded in the first hours.

What It Costs

The cost structure is unusual because much of it is non-medical. Beyond acute hospitalisation, a severe injury can generate:

• Long-term rehabilitation, including physical, occupational, speech, and cognitive therapy.
• Home modifications: ramps, widened doorways, grab bars, stair lifts, accessible bathroom.
• A vehicle and a driver, where the injury prevents driving.
• Attendant care, either in-home or in a facility.
• Lost earnings and reduced future earning capacity, which for a brain injury is often permanent.
• Neuropsychological testing, which is both diagnostic and useful as a damages exhibit.

Because these costs run for decades, damages are usually expressed as present value using a life care planner and a vocational economic analyst. For a young person with a severe injury, the difference between the present value of lifetime costs and a lump-sum award can be very large. This is the practical reason Florida law permits structured settlement; see Section 768.78, Florida Statutes, which authorises court-approved structured payment methods where the defendant has fewer than 50,000 assets or is not adequately insured.

The Florida Insurance Framework

Brain injury claims are usually paid by insurance rather than by an individual.

Personal injury protection

Under Section 627.736, Florida Statutes, every motor vehicle policy carries PIP benefits of up to $10,000 in medical and disability benefits plus $5,000 in death benefits. PIP pays 80 percent of reasonable medical expenses and 60 percent of lost wages regardless of fault. Benefits are forfeited if the injured person does not obtain medical care within 14 days of the accident or does not attend a medical examination when one is requested. For a brain injury, where cognitive impairment may make a patient unable to comply with a request for examination, carriers aggressively invoke this provision, so compliance should be documented.

Uninsured and underinsured motorist

Section 627.727 requires insurers to offer uninsured motorist (UM) and underinsured motorist (UIM) coverage on every Florida auto policy, and Section 324.151 governs the underinsured motorist benefit. Severe brain injury settlements routinely exceed the at-fault driver's minimum liability limits, making UM or UIM the largest single recovery available. In many policies UIM also pays amounts PIP does not cover, including deductibles.

Attorney's fees

Under Section 627.428, Florida Statutes, an insurer that wrongfully refuses to pay a covered claim must pay the insured's attorney's fees in addition to the amount owed. This materially changes the economics of a disputed UM or UIM claim.

Comparative Fault and Structured Payments

Under Section 768.81, Florida Statutes, a claimant's own contributory fault reduces the award proportionally, but a party found greater than 50 percent at fault may not recover any damages, and judgment is entered against each defendant on that defendant's percentage of fault rather than on joint and several liability. Section 768.81(6)'s bar does not apply to claims arising out of medical negligence under chapter 766, which matters where the original injury was a delayed diagnosis of intracranial bleeding.

Section 768.76 provides that a defendant generally may not reduce a damage award because the plaintiff received compensation from a collateral source such as health insurance. Section 768.79 permits either side to make a written pre-trial offer, and creates a fee-shifting consequence if the offer is rejected and the outcome is at least 25 percent more favourable than the offer.

What To Do First

1. Obtain the emergency department and radiology records, including every GCS score, immediately.
2. Document compliance with the 14-day PIP treatment requirement and any request for a medical examination.
3. Confirm that UM and UIM coverage was not declined on any policy in the household, and check whether a household member's policy provides coverage.
4. Do not accept an early offer before a life care plan and a neuropsychological evaluation exist.
5. Calendar the two-year filing deadline under Section 95.11(5)(a), Florida Statutes, from the date of injury.

Sources

• Sections 627.736, 627.727, 627.428, and 324.151, Florida Statutes - personal injury protection, uninsured and underinsured motorist coverage, and attorney's fees.
• Sections 768.78, 768.76, 768.79, and 768.81, Florida Statutes - structured settlements, collateral source rule, offer of judgment, and comparative fault.
• Section 95.11(5)(a), Florida Statutes - the two-year limitations period for negligence claims.

This guide is general information, not legal or medical advice, and it does not create an attorney-client relationship. Injury prognosis and case value depend on the individual facts; consult a qualified Florida attorney and treating physicians.