description: 'Concepts classifying the person into a named category of humans sharing common history, traits, geographical origin or nationality. The ethnicity codes used to represent these concepts are based upon the [CDC ethnicity and Ethnicity Code Set Version 1.0](http://www.cdc.gov/phin/resources/vocabulary/index.html) which includes over 900 concepts for representing race and ethnicity of which 43 reference ethnicity. The ethnicity concepts are grouped by and pre-mapped to the 2 OMB ethnicity categories: - Hispanic or Latino - Not Hispanic or Latino.' package_name: rs/hl7.fhir.us.core derivation: constraint name: USCoreEthnicityExtension type: Extension elements: extension: index: 0 slicing: rules: open discriminator: - {path: url, type: value} min: 1 slices: ombCategory: match: {url: ombCategory} schema: short: (USCDI) Hispanic or Latino|Not Hispanic or Latino type: Extension mustSupport: true index: 1 elements: url: type: uri pattern: {type: uri, value: ombCategory} index: 2 value: choices: [valueCoding] index: 4 valueCoding: {type: Coding, choiceOf: value, index: 5} required: [url, value, valueCoding] detailed: match: {url: detailed} schema: short: Extended ethnicity codes type: Extension array: true index: 6 elements: url: type: uri pattern: {type: uri, value: detailed} index: 7 value: choices: [valueCoding] index: 9 valueCoding: {type: Coding, choiceOf: value, index: 10} required: [url, value, valueCoding] text: match: {url: text} schema: short: (USCDI) ethnicity Text type: Extension mustSupport: true _required: true index: 11 elements: url: type: uri pattern: {type: uri, value: text} index: 12 value: choices: [valueString] index: 14 valueString: {type: string, choiceOf: value, index: 15} required: [url, value, valueString] url: pattern: {type: uri, value: 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity'} type: uri index: 16 value: choices: [] index: 18 package_version: 6.1.0-snapshot1 extensions: ombCategory: url: ombCategory short: (USCDI) Hispanic or Latino|Not Hispanic or Latino type: Extension mustSupport: true index: 1 elements: url: type: uri pattern: {type: uri, value: ombCategory} index: 2 value: choices: [valueCoding] index: 4 valueCoding: {type: Coding, choiceOf: value, index: 5} required: [url, value, valueCoding] detailed: url: detailed short: Extended ethnicity codes type: Extension array: true index: 6 elements: url: type: uri pattern: {type: uri, value: detailed} index: 7 value: choices: [valueCoding] index: 9 valueCoding: {type: Coding, choiceOf: value, index: 10} required: [url, value, valueCoding] text: url: text short: (USCDI) ethnicity Text type: Extension mustSupport: true _required: true index: 11 elements: url: type: uri pattern: {type: uri, value: text} index: 12 value: choices: [valueString] index: 14 valueString: {type: string, choiceOf: value, index: 15} required: [url, value, valueString] class: extension kind: complex-type url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity base: http://hl7.org/fhir/StructureDefinition/Extension version: 6.1.0-snapshot1 required: [extension, url]