Delirium

**Definition:** A disorder characterized by CONFUSION; inattentiveness; disorientation; ILLUSIONS; HALLUCINATIONS; agitation; and in some instances autonomic nervous system overactivity. It may result from toxic/metabolic conditions or structural brain lesions. (From Adams et al., Principles of Neurology, 6th ed, pp411-2)

**Tree numbers:** - C10.597.606.337.500 - C23.888.592.604.339.500 - F01.700.250.500 - F03.615.350