Head injuries are among the most serious — and most contested — injuries that arise from motor vehicle accidents. They range from mild concussions to severe traumatic brain injuries (TBIs) that permanently alter a person's ability to work, think, and function. Because the medical and financial stakes are often high, and because these injuries are frequently disputed by insurance companies, legal representation becomes a common part of the process.
Here's how that process generally works.
Insurance companies scrutinize head injury claims more closely than many other injury types. This happens for a few reasons:
This combination — high potential value, difficult documentation, and frequent insurer pushback — is what leads many people to seek an attorney after a head injury.
A personal injury attorney handling a head injury case typically takes on several functions:
Most personal injury attorneys work on a contingency fee basis, meaning they collect a percentage of the recovery — commonly in the range of 33% to 40%, though this varies by case complexity, jurisdiction, and whether the matter settles or goes to trial. If there is no recovery, there is typically no attorney fee.
Head injury claims can involve several categories of damages:
| Damage Type | What It Covers |
|---|---|
| Medical expenses | ER treatment, imaging, hospitalization, specialist care, rehabilitation |
| Future medical costs | Ongoing treatment, long-term care needs, therapies |
| Lost wages | Income missed during recovery |
| Lost earning capacity | Reduced ability to work in the future due to lasting impairment |
| Pain and suffering | Physical pain, emotional distress, mental anguish |
| Loss of enjoyment of life | Inability to participate in activities previously enjoyed |
| Cognitive and behavioral changes | Documented effects on memory, personality, and daily functioning |
How these categories are valued — and whether they're all available — depends significantly on state law, the type of insurance claim involved, and the facts of the specific case.
The legal path after a head injury depends heavily on where the accident happened and what insurance is in play.
In at-fault states, the injured person typically pursues compensation through the at-fault driver's liability insurance. If that coverage is insufficient, underinsured motorist (UIM) coverage on the injured person's own policy may apply.
In no-fault states, injured people first file with their own Personal Injury Protection (PIP) coverage, regardless of who caused the crash. Pursuing the at-fault driver for additional damages — including pain and suffering — usually requires meeting a tort threshold, which varies by state and may be defined by injury severity, diagnosis type, or dollar amount of medical bills.
Comparative fault rules also matter. In states that use pure comparative negligence, a person who is partially at fault can still recover damages reduced by their percentage of fault. In modified comparative negligence states, recovery may be barred if the injured person is found more than 50% (or 51%, depending on the state) at fault. A small number of states still apply contributory negligence, which can bar recovery entirely if the injured person bears any fault.
Every state sets a deadline — called a statute of limitations — for filing a personal injury lawsuit. These deadlines typically range from one to six years from the date of the accident, though the specific timeframe varies by state and sometimes by the type of claim or the age of the injured person. Missing this deadline generally forecloses the right to sue entirely.
Head injuries can complicate timing because some symptoms don't fully emerge until weeks or months after the crash. A discovery rule in some states allows the clock to start when an injury was discovered — or reasonably should have been — rather than on the accident date itself. Whether and how that applies depends on state law.
Several factors make head injury claims particularly variable in how they resolve:
How these elements combine in any individual case depends on state law, which insurance policies apply, how fault is allocated, how well the injury is documented, and what coverage limits exist on all sides. Those details — not general principles — are what ultimately determine what options are available and how a claim can realistically proceed.
