Psychosis classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Rim Halaby, M.D. [2]
Overview
Psychosis refers to a clinical presentation including one of more of the following abnormalities: delusions, hallucinations, disorganized speech, disorganized motor function, and negative symptoms. The classification of psychosis depends on the level, number, and duration of symptoms. Psychosis can be classified into: abnormalities limited to one feature of psychosis, schizophrenia spectrum, psychosis caused by specific conditions, and other specific schizophrenia spectrum and other psychotic disorders.
Classification
Shown below is an algorithm depicting the classification about psychosis.
| Psychosis | |||||||||||||||||||||||||||||||||
| Schizophrenia spectrum | Psychosis due to other conditions: - Drug/substance abuse - Medical conditions | ||||||||||||||||||||||||||||||||
| Brief psychotic disorder (Duration of symptoms 1 day-1 month) | Schizophreniform disorder (Duration of symptoms 1-6 months) | Schizophrenia or schizoaffective disorder (Duration of symptoms > 6 months) | |||||||||||||||||||||||||||||||