CPTAC Terminology CPTAC Causes of Death Codelist CPTAC Medical Conditions Codelist CPTAC Codelists Terminology Cellosaurus Disease Terminology SeroNet Authorized Values SeroNet Study Descriptors mCode Terminology mCode Elixhauser Dementia Value Set Alzheimer's Disease Alzheimer Disease CPTAC Alzheimer's disease Cellosaurus SeroNet Alzheimer dementia Alzheimer_s_Disease Mental or Behavioral Dysfunction Alzheimer's Disease A brain disorder that usually starts in late middle age or old age and gets worse over time. Symptoms include loss of memory, confusion, difficulty thinking, and changes in language, behavior, and personality. Alzheimer's Disease mCode Alzheimer's Dementia C0002395 A progressive, neurodegenerative disease characterized by loss of function and death of nerve cells in several areas of the brain leading to loss of cognitive function such as memory and language. C2866 Alzheimer's disease, unspecified Alzheimer disease Dementia