Final answer:
The diagnostic criteria for Major/Mild Neurocognitive Disorder require cognitive decline in one or more cognitive domains, observable by others or through testing. This decline must affect everyday activities and independence to varying extents. Common specifiers indicate the etiology and presence or absence of behavioral disturbances.
Step-by-step explanation:
Criteria and Specifiers for Major/Mild Neurocognitive Disorder
The diagnostic criteria for Major/Mild Neurocognitive Disorder include cognitive decline from a previous level of performance in one or more cognitive domains. These domains include complex attention, executive function, learning and memory, language, perceptual-motor, or social cognition. The decline must be observed by others or through neuropsychological testing. The cognitive deficits must interfere with independence in everyday activities for a major neurocognitive disorder, while in mild neurocognitive disorder, the cognitive deficits do not interfere with the capacity for independence in everyday activities, but greater effort or compensatory strategies may be required.
Common specifiers for neurocognitive disorders can indicate whether the condition is due to a specific etiology, such as Alzheimer's disease, frontotemporal lobar degeneration, Lewy body disease, vascular disease, traumatic brain injury, substance/medication use, HIV infection, prion disease, Parkinson's disease, Huntington's disease, another medical condition, or multiple etiologies. They may also specify whether the disorder is with or without behavioral disturbance, such as with or without psychosis, mood disturbance, agitation, or apathy.