Why Diagnostic Precision Matters
The DSM-5 criteria require careful longitudinal observation: psychotic symptoms must persist for at least two weeks without a mood episode, and mood symptoms must be present for the majority of the illness. Getting this distinction right changes the medication plan, the prognosis, and the family's expectations.
- Concurrent major mood episodes and schizophrenia-spectrum symptoms
- Two-plus weeks of psychosis without a mood episode at some point in the illness
- Mood symptoms present for most of the illness duration
- Symptoms not better explained by substance use or another condition



