(1) The student may be identified as having traumatic brain injury if the student has an acquired injury to the brain caused by external physical force which adversely affects the student's functional or psychosocial ability or both and the student's ability to learn or participate in the local educational agency's education program.

(2) The term traumatic brain injury applies to 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; psycho-social behavior; physical function; information processing; and speech.

(3) The student may not be identified as having a traumatic brain injury if the injury to the brain is congenital, degenerative, or caused by birth trauma.