description: This CodeSystem profile describes describes the minimum requirements for a US public health code system. package_name: hl7.fhir.us.ph-library derivation: constraint name: USPublicHealthCodeSystem type: CodeSystem elements: property: mustSupport: true index: 0 extensions: binding: {url: 'http://hl7.org/fhir/us/ph-library/StructureDefinition/us-ph-codesystem-property-required-binding-extension', min: 0, max: 1, short: What values are allowed, type: Extension, mustSupport: true, index: 2} elements: extension: index: 1 slicing: rules: open ordered: false discriminator: - {path: url, type: value} min: null slices: binding: match: {url: null} schema: {short: What values are allowed, type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/us/ph-library/StructureDefinition/us-ph-codesystem-property-required-binding-extension', index: 2} min: 0 max: 1 package_version: 2.0.0-ballot class: profile kind: resource url: http://hl7.org/fhir/us/ph-library/StructureDefinition/us-ph-codesystem base: http://hl7.org/fhir/StructureDefinition/CodeSystem version: 2.0.0-ballot