This knowledge summary defines a standard set of READ codes for the diagnosis of dementia to be used by general practices and memory assessment services.

Where some diagnostic data are available the codes Eu00. can be used for Alzheimer’s disease, Eu002 for mixed dementia, and Eu01. for vascular dementia. All others can be given Eu02z.

Recommended READ codes

ICD	Diagnosis	READ
F00	Dementia in Alzheimer’s disease	Eu00.
F00.2	Dementia in Alzheimer’s disease, atypical or mixed type (“Mixed Dementia”)	Eu002
F01	Vascular dementia	Eu01.
F03	Unspecified dementia	Eu02z

Where detailed information on subtype of dementia is available, then the READ codes below can be used. This matches ICD10 codes to recognised general practice dementia READ codes.

All READ codes

ICD10	Diagnosis	READ
F00	Dementia in Alzheimer’s disease	Eu00.
F00.0	Dementia in Alzheimer’s disease with early onset	Eu000
F00.1	Dementia in Alzheimer’s disease with late onset	Eu001
F00.2	Dementia in Alzheimer’s disease, atypical or mixed type	Eu002
F00.9	Dementia in Alzheimer’s disease, unspecified	Eu00z
F01	Vascular dementia Arteriosceloritic dementia	Eu01. E004
F01.1	Multi-infarct dementia	Eu011
F01.2	Subcortical vascular dementia	Eu012
F01.3	Mixed cortical and subcortical vascular dementia	Eu013
F01.8	Other vascular dementia	Eu01y
F01.9	Vascular dementia, unspecified Uncomplicated arteriosclerotic dementia Arteriosclerotic dementia with delirium Arteriosclerotic dementia with paranoia Arteriosclerotic dementia with depression Arteriosclerotic dementia NOS	Eu01z E0040 E0041 E0042 E0043 E004z
F02	Dementia in other diseases classified elsewhere	Eu02.
F02.0	Dementia in Pick’s disease	Eu020
F02.1	Dementia in Creutzfeldt-Jakob disease	Eu021
F02.2	Dementia in Huntingdon’s disease	Eu022
F02.3	Dementia in Parkinson’s disease	Eu023
F02.4	Dementia in HIV disease	Eu024
F02.8	Dementia in other disease classified elsewhere Dementia in conditions	Eu02y E041
F03	Unspecified dementia Presenile dementia Uncomplicated presenile dementia Presenile dementia with delirium Presenile dementia with paranoia Presenile dementia with depression Presenile dementia NOS Uncomplicated senile dementia Senile dementia with depressive or paranoid features Senile dementia with paranoia Senile dementia with depression Senile dementia with depressive or paranoid features NOS	Eu02z E001. E0010 E0011 E0012 E0013 E001z E000 E002 E0020 E0021 E002z
F05.1	Delirium superimposed on dementia Senile dementia with delirium	Eu041 E003
F05.9	Delirium, unspecified	Eu04z
F06.0	Organic hallucinosis Other senile and presenile organic psychoses Senile or presenile psychoses	Eu050 E00y E00z
F06.7	Mild cognitive disorder	Eu057
F10.7	Residual and late onset psychotic disorder due to alcohol. Including: – Alcoholic dementia – Other alcoholic dementia – Chronic alcoholic brain syndrome	Eu107 Eu10711 E012 E0120
G30 G30.8 G30.9	Alzheimer’s disease Other Alzheimer’s disease Alzheimer’s disease, unspecified	F110.
G30.0	Alzheimer’s disease with early onset	F1100
G30.1	Alzheimer’s disease with late onset	F1101
G31.0	Circumscribed brain atrophy. Including; – Fronto-temporal dementia – Pick’s disease – Progressive isolated aphasia	No Code F111.
G31.1	Senile degeneration of the brain, not elsewhere classified	F112.
G31.8	Other specified degenerative disease of the nervous system. Including: – Grey matter degeneration – Lewy body disease – Lewy body dementia – Subacute necrotizing encephalopathy	F116 Eu025