Self defined ethnicity


Self defined ethnicity codes are a set of codes used by the Home Office in the United Kingdom to classify an individual's ethnicity according to that person's self-definition.
The codes are also called "16 + 1" codes, as there are 16 of them, plus one code for "not stated".
The code system originated in the United Kingdom Census 2001.
British police forces are required to use the SDE 16+1 codes when spoken contact has taken place and an individual has been given an opportunity to state their self-perceived ethnicity.

List of SDE codes

;Asian or Asian British
;Black or Black British
;Mixed
;Chinese or other ethnic group
;White
;Not stated