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UKCRC Health Research Classification System


Main inclusion criteria

Dementias, transmissible spongiform encephalopathies, Parkinson’s disease, neurodegenerative diseases, Alzheimer’s disease, epilepsy, multiple sclerosis and studies of the normal brain and nervous system.


Advice on health categories

This category is suitable for studies of the ‘wiring’ of the brain.

Includes studies of TSEs, CJD and prion protein.

Studies on circadian rhythm are often but not always Neurological.

Other conditions where disruption to circadian rhythm is linked to disease should be coded to the appropriate health category. For example, circadian influence on immune cells in rheumatoid arthritis would be coded as Inflammatory and Immune System.

Studies on headaches and migraine are often but not always Neurological.

Headaches resulting from other conditions may require alternative or additional health categories, following the rules for sequelae. For example, headaches resulting from visual impairments can be coded 50% Eye, 50% Neurological.

Studies of the Blood-Brain Barrier, vascular cognitive impairments and vascular dementia should be coded as Neurological unless there is significant additional emphasis on either circulation (50% Cardiovascular, 50% Neurological) or the blood flow to the brain (50% Neurological, 50% Stroke).

Excludes studies dealing with the brain of individuals with a psychological condition listed in the Mental Health category which should be coded as 100% Mental Health.

Official terminology

Full name of category

Short name Unique ID
Neurological Neuro



Related external links

International Classifications of Diseases (ICD 10 v2016) – Chapter VI:   Diseases of the nervous system (G00-G99)