Yes, a brain injury is a personal injury if it occurs because of the legal fault of another person. You can sue for getting a concussion if it requires medical treatment. A concussion is a qualifying injury that may form the basis of damages in a personal injury claim based on negligence or intentional misconduct.
Concussions count as traumatic brain injury for accident compensation. While the impact may not be disfiguring, it still impacts the victim's function. The victim must take extra care to present proof of the injury and explain how it has harmed their life, including limiting activity, necessary medical care, the ability to work and the cause of pain and suffering.