According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), a key diagnostic criteria for major neurocognitive disorders is_________.

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The DSM-5 lists the key diagnostic criteria for major neurocognitive disorders as cognitive decline from previous level of performance interfering with daily activities. While changes in behavior or mood may be present, they are not the central diagnostic criteria. Loss of memory or prosopagnosia may be specific symptoms within a neurocognitive disorder but are not necessary for diagnosis. Delirium or other mental disorders may co-occur with neurocognitive disorders but are not definitive diagnostic criteria.