Psychiatric Emergencies Definition: A psychiatric emergency refers to an acute disturbance in a person’s thoughts, behavior, mood, or social relationships that requires immediate intervention to prevent harm to the individual or others. Types of Psychiatric Emergencies Common Psychiatric Emergencies and Their Features 1. Suicide Attempt or Risk 2. Aggression and Violence 3. Acute Psychosis 4. Panic Attack 5. Delirium 6. Neuroleptic Malignant Syndrome (NMS) 7. Substance Intoxication or Withdrawal 8.