This is the ValueSet that contains all the codes in Ethnicity of a person (L4) (https://nzhts.digital.health.nz/fhir/ValueSet/ethnic-group-level-4-code) and Ethnicity of a person (L4) (https://nzhts.digital.health.nz/fhir/ValueSet/ethnic-group-level-4-code). E.g. what you have to deal with if you get resources containing codes in either of them