Dementia with Lewy bodies can be medicated.
Some mental illnesses, including depression and psychosis, may produce symptoms that must be differentiated from both delirium and dementia
 Dementia is also described as a spectrum of disorders with causative subtypes of dementia based on a known disorder, such as Parkinson's disease, for Parkinson's disease dementia; Huntington's disease, for Huntington's disease dementia; vascular disease, for vascular dementia; HIV infection, causing HIV dementia; frontotemporal lobar degeneration for frontotemporal dementia; or Lewy body disease for dementia with Lewy bodies, and prion diseases

