F00.1** Asterisk (manifestation)
Dementia in Alzheimer disease with late onset (G30.1†)
Coding rules (TT06)
- ●Cannot be used as primary diagnosis
Dual coding (†/*)
This is an asterisk (*) manifestation code — usually paired with a dagger (†) etiology code.
→ Full dagger (†) ↔ asterisk (*) mapping tableCoding guidance (WHO 2019)
Dementia in Alzheimer disease with onset after the age of 65, usually in the late 70s or thereafter, with a slow progression, and with memory impairment as the principal feature. Alzheimer disease, type 1 Primary degenerative dementia of the Alzheimer type, senile onset Senile dementia, Alzheimer type