Something changed after the accident and it is not your neck or your back. It is the way you feel when you get behind the wheel now, if you can get behind the wheel at all. It is the image that surfaces when you are not expecting it, the sound of brakes, the specific light quality of that afternoon replaying without your permission. It is the way you scanned every intersection for months afterward, or the way your heart rate does something specific when a car comes up fast in your rearview mirror, or the way you have quietly restructured your life around avoiding the road where it happened. You know something is wrong. You may have been told you have PTSD, or you may suspect it without yet having a name for it. And somewhere underneath everything else you are managing, you are wondering whether this counts, whether psychological injury is something the law recognizes the same way it recognizes a broken bone, and whether anyone is going to take it seriously.
The answer to whether you can sue for PTSD after a car accident is yes, subject to the same requirements that govern any personal injury claim: the other party must have been negligent, their negligence must have caused your injury, and your injury must be documented in a way that meets the evidentiary standards the legal process requires. PTSD is a compensable injury in Missouri and across the United States. It has been for decades. What makes PTSD claims different from orthopedic injury claims is not their legal validity. It is the specific way they are attacked by the defense and the specific documentation strategy required to sustain them.
Post-traumatic stress disorder following motor vehicle accidents is not a fringe diagnosis or a controversial extension of the PTSD concept beyond its appropriate boundaries. Motor vehicle accidents are one of the leading causes of PTSD in the general population, consistently documented in the clinical literature as producing rates of PTSD comparable to those seen in survivors of other traumatic events. Approximately 20 to 45 percent of people involved in serious car accidents develop clinically significant PTSD symptoms, and a meaningful proportion of those meet the full diagnostic criteria. The variation in that range reflects differences in accident severity, individual vulnerability factors, and the quality of post-accident support and treatment, not uncertainty about whether the diagnosis is real. The American Psychiatric Association’s Diagnostic and Statistical Manual includes motor vehicle accidents explicitly within the category of traumatic events capable of producing PTSD. When an insurance company’s retained expert suggests that your PTSD is not a genuine condition or is not caused by the accident, they are arguing against an established clinical consensus, and that argument has a specific set of rebuttals grounded in decades of published research.
The diagnostic criteria for PTSD are worth understanding because they define the condition in terms that translate directly into the legal standard for compensable injury. The DSM requires that the person was exposed to actual or threatened death, serious injury, or sexual violence, either directly or by witnessing it happening to others. A serious car accident meets this criterion straightforwardly. Beyond the traumatic exposure, the diagnosis requires the presence of intrusion symptoms such as unwanted memories, flashbacks, or distressing dreams related to the event; persistent avoidance of reminders of the trauma, including driving, certain roads, or anything associated with the accident; negative alterations in cognition and mood, which can include persistent negative beliefs about oneself or the world, persistent negative emotions, and diminished interest in activities; and marked alterations in arousal and reactivity, including hypervigilance, exaggerated startle response, and sleep disturbance. These symptoms must have persisted for more than one month, must cause clinically significant distress or functional impairment, and must not be attributable to a substance or another medical condition. The one-month requirement is what was referenced in an earlier article in this series: PTSD literally cannot be formally diagnosed until sufficient time has passed, which means that a claim presenting early evidence of PTSD symptoms and a formal diagnosis obtained weeks to months later is presenting the injury in its correct clinical sequence, not manufacturing a belated diagnosis.
The most important thing you can do right now, both for your health and for your claim, is be evaluated by a licensed mental health professional with specific experience in trauma and PTSD. A psychiatrist, a psychologist, or a licensed clinical social worker with a trauma specialty can administer standardized assessment instruments, conduct a clinical interview, and produce a documented diagnosis that reflects your specific symptom profile and its connection to the accident. That documentation is the foundation of your psychological injury claim, and it needs to be created by someone with appropriate credentials who performed an actual clinical evaluation, not derived from a note in a primary care chart that says the patient seems anxious since the accident. The distinction between a formal psychological evaluation connected specifically to the accident and an incidental clinical observation matters enormously when a defense expert reviews your records looking for ways to minimize or reframe your psychological injuries.
The damages available in a PTSD claim following a car accident include the full range of psychological injury consequences: the cost of past and future mental health treatment including therapy, psychiatric medication, and potentially intensive outpatient or inpatient treatment if your condition warrants it; lost wages if your symptoms have impaired your ability to work; and non-economic damages for the pain, suffering, and loss of enjoyment of life that PTSD produces. That last category, the non-economic component, is where the largest values typically reside in serious PTSD claims, because the functional impairment produced by PTSD, the inability to drive, the avoidance of social activities, the disruption to intimate relationships, the pervasive anxiety that restructures daily life around managing triggers, represents a genuine and significant reduction in the quality and fullness of life that existed before the accident.
PTSD claims encounter a specific pattern of defense strategies that you should understand before you find yourself on the receiving end of them. The first is the pre-existing condition argument, in which the defense obtains your complete prior mental health history and identifies any prior anxiety, depression, trauma history, or mental health treatment that can be characterized as evidence that your psychological vulnerability predates the accident. This argument has the same legal answer as the pre-existing physical condition argument: the eggshell plaintiff rule holds that if your pre-existing psychological vulnerabilities made you more susceptible to developing PTSD from the accident than someone without those vulnerabilities, the defendant is nonetheless responsible for the PTSD that their negligence produced. A driver who does not know you are susceptible to psychological injury does not thereby escape liability for the psychological injury they cause. They take their victim as they find them, psychologically as well as physically.
The second defense strategy is the secondary gain argument, which is the suggestion, advanced with varying degrees of subtlety, that your psychological symptoms are maintained or exaggerated by the prospect of compensation and will resolve once the litigation concludes. This argument has been subjected to serious empirical scrutiny and the research does not support it. Studies following PTSD patients after accident litigation concluded have not found the systematic symptom resolution the secondary gain hypothesis predicts. Many patients continue to experience significant symptoms well after their claims have resolved, and some experience worsening as the structure of the litigation, which gave their experience a context and a validation, is removed. When a defense expert advances the secondary gain argument in your case, your treating clinician’s documentation of your symptom course, your treatment engagement, and the functional impairments observed over time independent of the claims process is the rebuttal that carries the most weight.
The third strategy is the causation attack, in which the defense argues that your PTSD was caused by something other than this specific accident, whether that is a prior traumatic event, a general predisposition to anxiety, or stressors in your life unrelated to the collision. The response to this requires your treating clinician to have documented specifically and consistently the temporal connection between the accident and the onset of your symptoms, the content of your intrusive symptoms and their specific relationship to the accident, and the ways in which your functioning changed after the accident relative to your baseline. A PTSD diagnosis alone does not establish that this accident caused it. A PTSD diagnosis connected explicitly in the clinical record to this accident, this mechanism, and this symptom profile does.
There is something that happens in PTSD claims that does not happen in orthopedic injury claims, and it deserves naming plainly. Describing your psychological symptoms to insurance adjusters, defense attorneys, and medical examiners requires you to revisit and recount traumatic experiences in adversarial contexts that are themselves potentially retraumatizing. The independent medical examination, in which a physician retained by the defense evaluates you and produces a report designed to minimize your injuries, is a genuinely difficult experience for anyone. For someone with PTSD, it can be acutely destabilizing. Your treating clinician should know when these examinations are scheduled and should support you with preparation and processing in the same way they would support you around any known trauma exposure. Your attorney should understand that the demands of litigation on a client with PTSD require particular care in scheduling, communication, and preparation, not because the litigation cannot proceed but because how it proceeds matters to your wellbeing.
You are not imagining what happened to your mind after the accident. You are not weak for developing PTSD when other people who have been in accidents did not. You are not exaggerating when the symptoms intrude into your days and your sleep and your relationships in ways that are hard to explain to people who have not experienced it. The law has long recognized that psychological injury caused by another person’s negligence is as real and as compensable as physical injury, and the clinical science has long established that motor vehicle accidents are a documented and common cause of PTSD. Those two facts together mean that what you are living with has both a name and a legal remedy, and the path to both starts with the same step: finding a trauma-specialized clinician and letting them evaluate what the accident actually did to you.
This article is intended for general informational purposes only and does not constitute legal or medical advice. PTSD diagnoses, the evidence required to support a psychological injury claim, and the applicable law vary by jurisdiction and individual circumstance. If you believe you are experiencing PTSD symptoms following a car accident, seek evaluation from a licensed mental health professional with trauma experience and consult with a personal injury attorney before making decisions about your claim.