Table 1.

Dementia and/or delirium ICD-10-AM codes

Dementia codes

F00.0* Dementia in Alzheimer’s disease with early onset (G30.0†)

F00.1* Dementia in Alzheimer’s disease with late onset (G30.1†)

F00.2* Dementia in Alzheimer’s disease, atypical or mixed type (G30.8†)

F00.9* Dementia in Alzheimer’s disease, unspecified (G30.9†)

F01.0 Vascular dementia of acute onset

F01.1 Multi-infarct dementia

F01.2 Subcortical vascular dementia

F01.3 Mixed cortical and subcortical vascular dementia

F01.8 Other vascular dementia

F01.9 Vascular dementia, unspecified

F02.1* Dementia in Creutzfeldt-Jakob disease (A81.0†)

F02.2* Dementia in Huntington’s disease (G10†)

F02.3* Dementia in Parkinson’s disease (G20†)

F02.4* Dementia in human immunodeficiency virus [HIV] disease (B22†)

F02.8* Dementia in other specified diseases classified elsewhere

Dementia (in):

• cerebral lipidosis (E75.-†)

• epilepsy (G40.-†)

• hepatolenticular degeneration (E83.0†)

• hypercalcaemia (E83.5†)

• hypothyroidism, acquired (E01.-†, E03.-†)

• intoxications (T36-T65†)

• Lewy body disease (G31.3†)

• multiple sclerosis (G35†)

• neurosyphilis (A52.1†)

• niacin deficiency [pellagra] (E52†)

• polyarteritis nodosa (M30.0†)

• systemic lupus erythematosus (M32.-†)

• trypanosomiasis (B56.-†, B57.-†)

• uraemia (N18.5†)

• vitamin B12 deficiency (E53.8†)

F03 Unspecified dementia

Delirium Codes

F05.0 Delirium not superimposed on dementia, so described

F05.1 Delirium superimposed on dementia

F05.8 Other delirium

F05.9 Delirium, unspecified

*The asterisk symbol denotes a code describing the manifestation of a disease and should always be assigned together with the appropriate aetiology code

^†The dagger symbol denotes a code describing the aetiology or underlying cause of a disease and should always be assigned together with the appropriate manifestation code