description: This profile constrains the Observation resource to represent gestational age in days in the scope of the European Patient Summary. package_name: hl7.fhir.eu.eps derivation: constraint name: ObservationPregnancyGestationalAgeEuEps type: Observation elements: referenceRange: {index: 17} value[x]: elements: system: pattern: {type: Uri, value: 'http://unitsofmeasure.org'} index: 11 code: pattern: {type: Code, value: d} index: 12 method: {index: 14} specimen: {index: 15} valueQuantity: type: Quantity choiceOf: value index: 10 slicing: slices: valueQuantity: match: {} schema: {type: Quantity, choiceOf: value, index: 10} min: 0 max: 1 value: choices: [] index: 7 slicing: rules: open ordered: false discriminator: - {path: $this, type: type} min: null slices: valueQuantity: match: {} schema: choices: [valueQuantity] index: 9 min: 0 max: 1 component: {index: 18} effectiveDateTime: {type: dateTime, choiceOf: effective, index: 5} effective: choices: [effectiveDateTime] index: 4 code: type: CodeableConcept binding: {strength: required, valueSet: 'http://hl7.eu/fhir/eps/ValueSet/gestational-age-loinc'} index: 0 bodySite: {index: 13} device: {index: 16} subject: type: Reference refers: ['http://hl7.eu/fhir/eps/StructureDefinition/patient-eu-eps'] index: 1 elements: reference: {index: 2} required: [reference] package_version: 1.0.0-ballot class: profile kind: resource url: http://hl7.eu/fhir/eps/StructureDefinition/observation-pregnancy-gestationalAge-eu-eps base: http://hl7.org/fhir/StructureDefinition/Observation version: 1.0.0-ballot required: [effectiveDateTime, subject, effective]