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What are the key diagnostic criteria for schizoaffective disorder according to the DSM-5?

Answer

Guideline-Aligned (High Confidence)
Generated by iatroX. Developer: Dr Kola Tytler MBBS CertHE MBA MRCGP (General Practitioner).
Last reviewed: 17 August 2025

The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), provides diagnostic criteria for schizoaffective disorder as part of its classification of psychotic disorders (Biedermann and Fleischhacker, 2016). Schizoaffective disorder is diagnosed according to specific criteria within the DSM-5 framework, which is one of the diagnostic criteria sets used for this condition (Pagel et al., 2014). The DSM-5 also defines and describes schizophrenia, a related psychotic disorder (Tandon et al., 2013). While the DSM-5 outlines specific criteria for schizoaffective disorder, the provided context confirms its role as a key diagnostic reference for this and other psychotic conditions (Pagel et al., 2014; Biedermann and Fleischhacker, 2016).

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