F02.1** Asterisk (manifestation)

Dementia in Creutzfeldt-Jakob disease (A81.0†)

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 table

Coding guidance (WHO 2019)

A progressive dementia with extensive neurological signs, due to specific neuropathological changes that are presumed to be caused by a transmissible agent. Onset is usually in middle or later life, but may be at any adult age. The course is subacute, leading to death within one to two years.

Sibling codes

F02*Dementia in other diseases classified elsewhere F02.0*Dementia in Pick disease (G31.0†)F02.2*Dementia in Huntington disease (G10†)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