Date: July 1999
Note: Covered under Degenerative organic brain disease from July 1999 until July 2001 when separate definition was re-introduced.
Definition:
No separate definition, see Degenerative organic brain disease: Definite diagnosis by a UK Consultant Neurologist of an organic degenerative brain disease (including Alzheimer's disease, pre-senile dementia and Creutzfeldt-Jakob disease) evidenced by progressive loss of ability to remember, reason, perceive, understand, express and give effect to ideas beyond that associated with the normal effects of ageing. Neurosis and psychological illnesses are specifically excluded.