Cellosaurus Disease Terminology mCode Terminology mCode Elixhauser Dementia Value Set Dementia Lewy Body Dementia Cellosaurus Lewy Body Disease Mental or Behavioral Dysfunction mCode A progressive form of dementia characterized by the presence of protein deposits called Lewy bodies in the midbrain and cerebral cortex, and loss of cholinergic and dopaminergic neurons. The signs and symptoms overlap with Alzheimer and Parkinson disease. C84826 Lewy Body Dementia C0752347 Dementia with Lewy bodies Lewy Body Dementia