A traumatic brain injury means 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 (1) 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.

This definition is found in State Board of Education Rule 6A-6.030153, F.A.C.