F02.2** Asterisk (manifestation)
Dementia in Huntington disease (G10†)
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)
A dementia occurring as part of a widespread degeneration of the brain. The disorder is transmitted by a single autosomal dominant gene. Symptoms typically emerge in the third and fourth decade. Progression is slow, leading to death usually within 10 to 15 years. Dementia in Huntington chorea
Sibling codes
F02*Dementia in other diseases classified elsewhereF02.0*Dementia in Pick disease (G31.0†)F02.1*Dementia in Creutzfeldt-Jakob disease (A81.0†)F02.3*Dementia in Parkinson disease (G20†)F02.4*Dementia in human immunodeficiency virus [HIV] disease (B22.0†)F02.8*Dementia in other specified diseases classified elsewhere