How is schizophrenia diagnosed?

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    Last Updated: May 16, 2025

    Schizophrenia is diagnosed by a healthcare provider who conducts an evaluation to exclude other potential causes of symptoms. The diagnosis may use criteria from the DSM and ICD.

    A healthcare provider will complete an evaluation to rule out other potential causes of the symptoms. Two sets of criteria, from the Diagnostic and Statistical Manual of Mental Disorders (DSM), published by the American Psychiatric Association, and the International Classification of Disease (ICD), published by the World Health Organization. may be used to diagnose schizophrenia.