description: The Observation resource is used for tracking the current and historical observations that have been made for a patient with further contraints applied to represent the length of gestation observation, to support the Digital Child Health project. package_name: NHSDigital.FHIR.STU3 derivation: constraint name: CareConnect-DCH-LengthOfGestation-Observation-1 type: Observation elements: category: index: 8 elements: coding: index: 9 slicing: rules: open ordered: false discriminator: - {path: system, type: value} min: null slices: snomedCT: match: {system: 'http://snomed.info/sct'} schema: index: 10 extensions: snomedCTDescriptionID: url: h type: Extension index: 12 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 13 elements: extension: index: 11 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: snomedCTDescriptionID: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} schema: type: Extension url: h index: 12 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 13 system: pattern: {type: Uri, value: 'http://snomed.info/sct'} index: 14 version: {index: 15} code: {index: 16} display: {index: 17} required: [display, system, code] referenceRange: {index: 63} interpretation: {index: 39} method: index: 51 elements: coding: index: 52 slicing: rules: open ordered: false discriminator: - {path: system, type: value} min: null slices: snomedCT: match: {system: 'http://snomed.info/sct'} schema: index: 53 extensions: snomedCTDescriptionID: url: h type: Extension index: 55 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 56 elements: extension: index: 54 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: snomedCTDescriptionID: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} schema: type: Extension url: h index: 55 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 56 system: pattern: {type: Uri, value: 'http://snomed.info/sct'} index: 57 version: {index: 58} code: {index: 59} display: {index: 60} required: [display, system, code] specimen: {index: 61} value: choices: [] index: 37 related: index: 64 elements: target: type: Reference refers: ['http://hl7.org/fhir/StructureDefinition/Sequence', 'https://fhir.nhs.uk/STU3/StructureDefinition/CareConnect-DCH-AssessmentScale-Observation-1'] index: 65 component: short: Length of gestation in weeks and days array: true min: 2 max: 2 index: 66 elements: code: elements: coding: index: 67 slicing: rules: open ordered: false discriminator: - {path: system, type: value} min: null slices: snomedCT: match: {system: 'http://snomed.info/sct'} schema: index: 68 extensions: snomedCTDescriptionID: url: h type: Extension index: 70 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 71 elements: extension: index: 69 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: snomedCTDescriptionID: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} schema: type: Extension url: h index: 70 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 71 system: pattern: {type: Uri, value: 'http://snomed.info/sct'} index: 72 version: {index: 73} code: {index: 74} display: {index: 75} required: [display, system, code] interpretation: {index: 76} referenceRange: {index: 77} slicing: rules: closed ordered: false description: Component observations which form the length of gestation observation. discriminator: - {path: code, type: value} min: 2 max: 2 slices: weeks: match: {code: null} schema: short: Number of weeks applicable to the length of gestation observation, expressed in n2 format _required: true index: 78 elements: code: short: Code representing the component observation of 'weeks' index: 79 extensions: snomedCTDescriptionID: url: h type: Extension short: The SNOMED CT Description ID for the display index: 81 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 82 elements: extension: index: 80 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: snomedCTDescriptionID: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} schema: type: Extension short: The SNOMED CT Description ID for the display url: h index: 81 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 82 coding: index: 83 elements: system: pattern: {type: Uri, value: 'http://snomed.info/sct'} index: 84 version: {index: 85} code: pattern: {type: Code, value: '258705008'} index: 86 display: pattern: {type: String, value: weeks} index: 87 userSelected: {index: 88} required: [display, system, code] text: {index: 89} required: [coding] valueQuantity: type: Quantity short: Number of weeks applicable to the length of gestation observation, expressed in n2 format index: 90 slicing: slices: valueQuantity: match: {} schema: type: Quantity short: Number of weeks applicable to the length of gestation observation, expressed in n2 format _required: true index: 90 elements: value: {short: 'Number of weeks applicable to the length of gestation observation, expressed in n2 format', index: 91} comparator: {index: 92} unit: {index: 93} system: {index: 94} code: {index: 95} required: [value] dataAbsentReason: {index: 96} interpretation: {index: 97} referenceRange: {index: 98} required: [valueQuantity] days: match: {code: null} schema: short: Number of days applicable to the length of gestation observation, expressed in n1 format _required: true index: 99 elements: code: short: Code representing the component observation of 'days' index: 100 elements: coding: index: 101 extensions: snomedCTDescriptionID: url: h type: Extension short: The SNOMED CT Description ID for the display index: 103 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 104 elements: extension: index: 102 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: snomedCTDescriptionID: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} schema: type: Extension short: The SNOMED CT Description ID for the display url: h index: 103 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 104 system: pattern: {type: Uri, value: 'http://snomed.info/sct'} index: 105 version: {index: 106} code: pattern: {type: Code, value: '258703001'} index: 107 display: pattern: {type: String, value: days} index: 108 userSelected: {index: 109} required: [display, system, code] text: {index: 110} required: [coding] valueQuantity: type: Quantity short: Number of days applicable to the length of gestation observation, expressed in n1 format index: 111 slicing: slices: valueQuantity: match: {} schema: type: Quantity short: Number of days applicable to the length of gestation observation, expressed in n1 format _required: true index: 111 elements: value: {short: 'Number of days applicable to the length of gestation observation, expressed in n1 format', index: 112} comparator: {index: 113} unit: {index: 114} system: {index: 115} code: {index: 116} required: [value] dataAbsentReason: {index: 117} interpretation: {index: 118} referenceRange: {index: 119} required: [valueQuantity] extension: index: 0 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: reason: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-CareConnect-ReasonCondition-1'} schema: type: Extension url: h index: 1 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-CareConnect-ReasonCondition-1'} index: 2 effectiveDateTime: type: dateTime index: 32 slicing: slices: effectiveDateTime: match: {} schema: {type: dateTime, index: 32} max: 0 comment: {index: 40} code: elements: coding: index: 18 extensions: snomedCTDescriptionID: url: h type: Extension short: The SNOMED CT Description ID for the display index: 20 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 21 elements: extension: index: 19 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: snomedCTDescriptionID: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} schema: type: Extension short: The SNOMED CT Description ID for the display url: h index: 20 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 21 system: pattern: {type: Uri, value: 'http://snomed.info/sct'} index: 22 version: {index: 23} code: pattern: {type: Code, value: '412726003'} index: 24 display: pattern: {type: String, value: Length of gestation at birth} index: 25 userSelected: {index: 26} required: [display, system, code] text: {index: 27} required: [coding] identifier: index: 3 elements: system: {index: 4} value: {index: 5} assigner: type: Reference refers: ['https://fhir.hl7.org.uk/STU3/StructureDefinition/CareConnect-Organization-1'] index: 6 required: [value, system] bodySite: index: 41 elements: coding: index: 42 slicing: rules: open ordered: false discriminator: - {path: system, type: value} min: null slices: snomedCT: match: {system: 'http://snomed.info/sct'} schema: index: 43 extensions: snomedCTDescriptionID: url: h type: Extension index: 45 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 46 elements: extension: index: 44 slicing: rules: open discriminator: - {path: url, type: value} min: null slices: snomedCTDescriptionID: match: {url: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} schema: type: Extension url: h index: 45 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-coding-sctdescid'} index: 46 system: pattern: {type: Uri, value: 'http://snomed.info/sct'} index: 47 version: {index: 48} code: {index: 49} display: {index: 50} required: [display, system, code] context: type: Reference refers: ['https://fhir.nhs.uk/STU3/StructureDefinition/CareConnect-DCH-Encounter-1'] index: 30 elements: reference: {index: 31} required: [reference] issued: {index: 33} device: {index: 62} basedOn: {index: 7} subject: type: Reference refers: ['https://fhir.nhs.uk/STU3/StructureDefinition/CareConnect-DCH-Patient-1'] index: 28 elements: reference: {index: 29} required: [reference] performer: type: Reference refers: ['https://fhir.nhs.uk/STU3/StructureDefinition/CareConnect-DCH-Practitioner-1'] index: 34 elements: reference: {index: 35} required: [reference] dataAbsentReason: {index: 38} package_version: 1.0.0 extensions: reason: url: h type: Extension index: 1 elements: url: pattern: {type: Uri, value: 'https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-CareConnect-ReasonCondition-1'} index: 2 class: profile kind: resource url: https://fhir.nhs.uk/STU3/StructureDefinition/CareConnect-DCH-LengthOfGestation-Observation-1 base: http://hl7.org/fhir/StructureDefinition/Observation version: 1.3.0 required: [context, subject]