816 Highlights of Changes From DSM-IV to DSM-5
Neurocognitive Disorders
The DSM-IV diagnoses of dementia and amnestic disorder are subsumed under the newly
named entity major neurocognitive disorder  (NCD). The term dementia  is not precluded from
use in the etiological subtypes where that te rm is standard. Furthermore, DSM-5 now recog-
nizes a less severe level of cognitive impairment, mild NCD,  which is a new disorder that per-
mits the diagnosis of less disabling syndromes that may nonetheless be the focus of concern
and treatment. Diagnostic criteria  are provided for both of these disorders, foll owed by diag-
nostic criteria for different etiological subtypes.  In DSM-IV, individual diagnoses were desig-
nated for dementia of the Alzheimer’s type , vascular dementia, and substance-induced
dementia, whereas the other neurodegenerative disorders were classified as dementia due to
another medical condition, with HIV, head trauma, Parkinson’s disease, Huntington’s disease,
Pick’s disease, Creutzfeldt-Jako b disease, and other medical co nditions specified. In DSM-5,
major or mild NCD due to Alzheimer’s disease and major or mild vascular NCD have been re-
tained, while new separate criteria are now presented for major or mild frontotemporal NCD,
NCD with Lewy bodies, and NCDs due to trau matic brain injury, a substance/medication,
HIV infection, prion disease, Parkinson’s diseas e, Huntington’s disease, another medical con-
dition, and multiple etiologies, respectively. Un specified NCD is also included as a diagnosis.
Personality Disorders
The criteria for personality disorders in Sectio n II of DSM-5 have not changed from those in