We present a case of remitting brief psychotic disorder in a 15 year old male, who had 4 phenomenologically alike episodes consisting of the following symptoms; sudden onset, unstructured delusions, hallucinations, clouding of consciousness, and a rapid return to his premorbid level of functioning. No evidence was found indicating a metabolic disease or a neurological disorder. The diagnostic criteria of brief psychotic disorder were fulfilled, although the clinical picture could not be described adequately by using only DSM-IV criteria. Remitting brief psychosis and the validity of different diagnostic systems are discussed.