When doctors classify your traumatic brain injury (TBI) as "mild," it can feel dismissive of everything you are experiencing: The headaches that will not go away. The difficulty in finding words. The exhaustion that overwhelms you without warning. The frustration of feeling different from how you did before.
The term "mild" does not mean minor. It describes how your injury looked at the moment of diagnosis, not how it will affect your life going forward. A so-called mild TBI can cause symptoms that persist for months or years and, in some cases, become permanent.
Insurance companies use this language to minimize claims, but New York law does not require your head injury to be labeled "severe" for you to recover compensation. If you are struggling with a brain injury or wonder what it could spell for your future, Rosenberg & Gluck may be able to help. Contact us today for a free consultation to discuss your legal options after a brain injury of any type. For more information on brain injury claims, visit our brain injury lawyer page.
Key Takeaways About TBI Diagnosis and Your Injury Claim
- The terms "mild," "moderate," and "severe" describe your initial symptoms as a doctor observes them, not your prognosis.
- A person diagnosed with a mild TBI can experience lasting cognitive problems, while someone with a severe TBI could fully recover.
- About 15% of people diagnosed with mild TBI experience symptoms that persist for a year or longer, a condition known as post-concussion syndrome.
- Standard imaging like CT scans and MRIs often cannot detect the damage from a mild TBI, making these injuries invisible but no less real.
- New York law recognizes brain injuries as serious injuries, which can qualify you to pursue compensation for pain and suffering, even when classified as mild.
Why Is a "Mild" Traumatic Brain Injury Still Serious?
The classification "mild" refers only to your initial symptoms at the time of injury --- typically a brief loss of consciousness or confusion lasting less than 30 minutes. It says nothing about how long symptoms will last, how severely they will affect your daily functioning, or whether the damage is permanent.
The Centers for Disease Control and Prevention (CDC) reports that there were over 69,000 TBI-related deaths in the United States in one recent year, with approximately 190 deaths per day.
While most TBIs are classified as mild, the CDC notes that these injuries are still serious and can lead to lasting problems with learning, memory, concentration, and problem-solving.
When doctors assess a brain injury, they often use the Glasgow Coma Scale (GCS), which measures your level of consciousness immediately after the injury. A score of 13 to 15 indicates a mild TBI. But this scoring system was designed for emergency triage to help doctors decide on immediate treatment, not to predict your long-term recovery.
What Is the Difference Between a Mild and Severe TBI?
The terms doctors use to classify brain injuries can be confusing, and they often do not match how the injury actually affects your life.
Mild TBI (Concussion)
A mild traumatic brain injury, often called a concussion, typically involves brief confusion or disorientation, loss of consciousness for less than 30 minutes (or no loss of consciousness at all), and normal results on CT or MRI scans.
Despite the name, mild TBIs can cause significant and lasting symptoms. According to BrainLine, a national resource for brain injury information, many people who experience even brief symptoms after a head injury find that problems with concentration, memory, and headaches persist far longer than expected.
Moderate TBI
A moderate traumatic brain injury involves loss of consciousness lasting from 30 minutes to 24 hours, confusion that may persist for days or weeks, and often visible abnormalities on brain imaging. Recovery from a moderate TBI can take months, and some complications may be permanent.
Severe TBI
A severe traumatic brain injury involves extended periods of unconsciousness (coma), significant abnormalities on imaging, and often life-threatening complications. Severe TBIs frequently require surgery and extensive rehabilitation. Many survivors face permanent disabilities.
The critical point is that your classification at the time of injury does not determine your outcome. A "mild" injury can result in severe, lasting impairment.
Speak to a Lawyer Today >What Symptoms Should I Watch for After a Head Injury?
Brain injury symptoms can appear immediately or develop over days and weeks following the incident. Some symptoms are obvious; others are subtle enough that you might not connect them to the injury.
According to the CDC, people with mild TBI or concussion may experience:
- Headaches that do not go away
- Difficulty thinking clearly or concentrating
- Memory problems
- Feeling slowed down mentally
- Difficulty sleeping or sleeping more than usual
- Mood changes, including irritability, sadness, or anxiety
- Sensitivity to light or noise
- Balance problems or dizziness
- Nausea or vomiting
A person with a history of multiple concussions or mild TBIs may experience longer recovery times and more severe symptoms. They may also develop long-term problems with concentration, memory, and headaches.
If you experienced a blow to the head and notice any of these symptoms --- even days later --- seek medical attention. Early documentation is essential for both your health and any potential legal claim. If your head injury was caused by a slip and fall, you may want to speak with a slip and fall attorney about your rights.
Can a Mild TBI Cause Permanent Damage?
While most people recover from a mild TBI within weeks or months, a significant minority do not. Research published by the National Institutes of Health indicates that persistent post-concussion syndrome (also called post-concussive syndrome) affects approximately 15% of people with mild TBIs, with symptoms sometimes lasting a year or more.
Some of the long-term effects that can follow even a "mild" brain injury include:
- Chronic headaches and migraines
- Persistent problems with memory and concentration
- Difficulty processing information quickly
- Changes in personality or emotional regulation
- Increased risk of depression and anxiety
- Sleep disturbances
- Sensitivity to light and sound
The brain is complex, and injuries affect people differently. Your symptoms are real, regardless of what imaging shows or how your injury was initially classified.
What Is Post-Concussive Syndrome?
Post-concussive syndrome (PCS) occurs when symptoms from a "mild" traumatic brain injury persist for weeks, months, or longer after the initial injury. While many people recover quickly from a concussion, others continue to experience ongoing problems that interfere with daily life.
Common symptoms of PCS include chronic headaches, difficulty concentrating, memory problems, dizziness, fatigue, and mood changes such as anxiety or irritability. These symptoms can fluctuate in intensity and may not appear immediately after the injury.
PCS is one of the clearest examples of why the term "mild" can be misleading. Even when imaging appears normal, the effects of a brain injury can be long-lasting and disruptive.
From a legal perspective, persistent symptoms may support a traumatic brain injury claim that New York courts recognize as meeting the serious injury threshold, particularly if they limit your ability to work or carry out everyday activities.
Why Do Insurance Companies Focus on the "Mild" TBI Label?
Insurance adjusters are trained to minimize personal injury claims. When they see the word "mild" in your medical records, they often seize on it to argue that your injury is not serious enough to warrant significant compensation.
Common tactics include arguing that your CT scan was normal (which is typical for mild TBIs), claiming your symptoms should have resolved within a few weeks, suggesting your ongoing problems are psychological rather than physical, and pointing to any gap in your medical treatment as evidence that you were not seriously hurt.
These arguments ignore the medical reality of brain injuries. Standard imaging often cannot detect the microscopic damage that causes ongoing symptoms. The Brain Injury Association of America emphasizes that brain injuries are frequently invisible disabilities --- people may appear normal while struggling internally to function.
Your legal claim requires evidence that counters these tactics: thorough medical documentation, neuropsychological testing, and testimony from doctors who can explain how your injury affects your daily life.
Speak to a Lawyer Today >Does a Mild TBI Qualify as a Serious Injury Under New York Law?
A TBI classified as mild can qualify as a serious injury. New York's no-fault insurance law (NY Insurance Law § 5102(d)) requires that car accident victims meet a "serious injury threshold" before they can sue for pain and suffering. The law lists nine categories of qualifying injuries.
Several of these categories can apply to brain injuries:
- Permanent consequential limitation of use of a body organ or member --- if your brain injury causes lasting cognitive impairment
- Significant limitation of use of a body function or system --- if the injury significantly affects your neurological function
- A medically determined injury that prevents you from performing substantially all of your usual daily activities for at least 90 of the 180 days following the accident
The key is documentation. Medical records, neuropsychological testing, and expert testimony can establish that your brain injury meets the serious injury threshold, regardless of how it was initially classified.
For brain injuries caused by slip and fall accidents, construction accidents, or other non-vehicle incidents, there is no threshold requirement. You can pursue compensation for any injury caused by another party's negligence. If your TBI resulted from a construction accident, a construction accident lawyer can evaluate your case.
What Evidence Do I Need to Prove a Brain Injury Claim?
Because mild TBIs often do not appear on standard imaging, building a strong case requires comprehensive documentation.
Medical Records
Your medical records should show a clear timeline from the initial injury through ongoing treatment. Include emergency room records, follow-up appointments with neurologists or other specialists, records of prescribed medications, and documentation of any cognitive or physical therapy.
Neuropsychological Testing
Neuropsychological evaluations measure cognitive function --- memory, attention, processing speed, and executive function. These tests can objectively demonstrate deficits that imaging cannot detect.
Before-and-After Witnesses
Family members, friends, and coworkers who knew you before the injury can testify to changes in your personality, memory, mood, or abilities. This testimony is often powerful evidence of how the injury has affected your life.
Expert Medical Testimony
Doctors who specialize in brain injuries can explain to a jury why "mild" is a misleading term, how your specific injury occurred, and why your symptoms are expected to persist.
How Long Do I Have to File a Brain Injury Lawsuit in New York?
Under New York's statute of limitations, you generally have three years from the date of your injury to file a personal injury lawsuit. This deadline applies to most negligence claims, including car accidents and premises liability cases.
If a government entity is responsible for your injury, you must file a Notice of Claim within 90 days.
Brain injury symptoms sometimes develop or worsen over time, which makes early legal consultation important. Even if you are unsure about the severity of your injury, speaking with a lawyer can help you preserve your options. For residents of Nassau County or Suffolk County, our firm is here to help.
FAQs About Traumatic Brain Injury Cases in New York
How much is a brain injury case worth in New York?
The value of a brain injury case depends on the severity and permanence of your symptoms, the cost of your medical care, your lost income and earning capacity, and the impact on your quality of life.
Can I sue for a mild concussion in New York?
Yes, if your concussion was caused by someone else's negligence and it meets the serious injury threshold. Even a "mild" concussion can qualify if it causes lasting symptoms that affect your ability to work or perform daily activities for an extended period.
How do doctors prove a brain injury after an accident?
Doctors use a combination of clinical evaluation, symptom assessment, and diagnostic testing. While CT and MRI scans can detect bleeding or structural damage, neuropsychological testing is often necessary to document the cognitive effects of milder injuries. Your reported symptoms and their consistency over time also play an important role in diagnosis.
Why do my brain injury symptoms keep getting worse?
Some brain injury symptoms appear or worsen in the days and weeks following the initial injury as the brain responds to trauma. Secondary effects like inflammation, disrupted sleep, and psychological stress can also intensify symptoms over time. If your symptoms are worsening, seek medical attention right away. Proper care of TBI is essential to help mitigate the damage.
What if the insurance company says my brain injury is not serious?
Insurance companies routinely minimize brain injury claims by pointing to normal imaging results or the "mild" classification. Your attorney can counter these arguments with neuropsychological testing results, expert medical testimony, and documentation of how the injury affects your daily functioning. The legal definition of "serious injury" depends on your symptoms and limitations, not on the label in your medical records. Learn more about pain and suffering claims for brain injuries.
Consult a New York Brain Injury Lawyer Today
A brain injury changes your life in ways that are difficult to explain to people who have not experienced it. The frustration of struggling with tasks that used to be easy. The isolation of feeling different than you were before. The fear that this is your new normal.
You do not have to accept an insurance company's dismissal of your injury because a doctor wrote "mild" in your chart. At Rosenberg & Gluck, LLP, our New York brain injury attorneys represent Long Island TBI victims with the compassion and determination these cases require.
Call (631) 451-7900 or contact us online for a free consultation. There is no fee unless we recover compensation on your behalf.