description: Text as observation result, see also 'Guidance - Laboratory Result' package_name: ch.fhir.ig.ch-elm derivation: constraint name: ChElmObservationTxt type: Observation elements: value: choices: [] index: 1 slicing: rules: open ordered: false discriminator: - {path: $this, type: type} min: 1 slices: valueString: match: {} schema: choices: [valueString] _required: true index: 3 min: 1 max: 1 valueString: type: string choiceOf: value index: 4 slicing: slices: valueString: match: {} schema: {type: string, choiceOf: value, _required: true, index: 4} min: 1 max: 1 package_version: 1.10.0 class: profile kind: resource url: http://fhir.ch/ig/ch-elm/StructureDefinition/ch-elm-observation-txt base: http://hl7.org/fhir/StructureDefinition/Observation version: 1.10.0 required: [value, valueString]