Brain Damage, Chronic

**Definition:** A condition characterized by long-standing brain dysfunction or damage, usually of three months duration or longer. Potential etiologies include BRAIN INFARCTION; certain NEURODEGENERATIVE DISORDERS; CRANIOCEREBRAL TRAUMA; ANOXIA, BRAIN; ENCEPHALITIS; certain NEUROTOXICITY SYNDROMES; metabolic disorders (see BRAIN DISEASES, METABOLIC); and other conditions.

**Tree numbers:** - C10.228.140.140 - C23.550.291.500.063

**Synonyms:** - Chronic Encephalopathy - Encephalopathy, Chronic