Traumatic Brain Injury (TBI) is an acquired injury to the brain caused by an external physical force resulting in total or partial functional disability or psychosocial impairment, or both, that adversely affects educational performance. The term applies to mild, moderate, or severe open or closed head injuries resulting in impairments in one or more areas, such as cognition; language; memory; attention; reasoning; abstract thinking; judgment; problem solving; sensory, perceptual and motor abilities; psychosocial behavior; physical functions; information processing; or speech. The term includes anoxia due to trauma. The term does not include brain injuries that are congenital, degenerative, or induced by birth trauma. Services are provided across all educational settings.