{
"description": "Visual acuity is a measurement of sharpness of vision. It is a measure of the smallest details that someone can still distinguish.",
"_filename": "zib-VisualAcuity.json",
"package_name": "nictiz.fhir.nl.r4.zib2020",
"date": null,
"derivation": "constraint",
"publisher": "Nictiz",
"fhirVersion": "4.0.1",
"purpose": "This Observation resource represents the Dutch [zib ('Zorginformatiebouwsteen', i.e. Health and Care Information Model) VisualAcuity v1.0 (2020)](https://zibs.nl/wiki/VisualAcuity-v1.0(2020EN)).",
"name": "ZibVisualAcuity",
"mapping": [ {
"uri": "https://zibs.nl/wiki/VisualAcuity-v1.0(2020EN)",
"name": "zib VisualAcuity-v1.0(2020EN)",
"identity": "zib-visualacuity-v1.0-2020EN"
} ],
"abstract": true,
"copyright": "Copyright and related rights waived via CC0, https://creativecommons.org/publicdomain/zero/1.0/. This does not apply to information from third parties, for example a medical terminology system. The implementer alone is responsible for identifying and obtaining any necessary licenses or authorizations to utilize third party IP in connection with the specification or otherwise.",
"type": "Observation",
"experimental": null,
"resourceType": "StructureDefinition",
"title": "zib VisualAcuity",
"package_version": "0.12.0-beta.1",
"status": "draft",
"id": "3548fae6-fde1-4010-a8bd-356a1a389b69",
"kind": "resource",
"url": "http://nictiz.nl/fhir/StructureDefinition/zib-VisualAcuity",
"version": null,
"differential": {
"element": [ {
"id": "Observation",
"path": "Observation",
"alias": [ "Visus" ],
"short": "VisualAcuity",
"mapping": [ {
"map": "NL-CM:12.19.1",
"comment": "VisualAcuity",
"identity": "zib-visualacuity-v1.0-2020EN"
} ]
}, {
"id": "Observation.code",
"path": "Observation.code",
"patternCodeableConcept": {
"coding": [ {
"code": "260246004",
"system": "http://snomed.info/sct"
} ]
}
}, {
"id": "Observation.effective[x]",
"path": "Observation.effective[x]",
"slicing": {
"rules": "open",
"discriminator": [ {
"path": "$this",
"type": "type"
} ]
}
}, {
"id": "Observation.effective[x]:effectiveDateTime",
"path": "Observation.effective[x]",
"type": [ {
"code": "dateTime"
} ],
"alias": [ "VisusDatumTijd" ],
"short": "VisualAcuityDateTime",
"mapping": [ {
"map": "NL-CM:12.19.4",
"comment": "VisualAcuityDateTime",
"identity": "zib-visualacuity-v1.0-2020EN"
} ],
"sliceName": "effectiveDateTime",
"definition": "The date and time when the visual acuity was measured."
}, {
"id": "Observation.value[x]",
"path": "Observation.value[x]",
"slicing": {
"rules": "open",
"discriminator": [ {
"path": "$this",
"type": "type"
} ]
}
}, {
"path": "Observation.value[x]",
"definition": "The measured decimal visual acuity.",
"short": "DecimalVisualAqcuity",
"mapping": [ {
"map": "NL-CM:12.19.11",
"comment": "VisualAcuity",
"identity": "zib-visualacuity-v1.0-2020EN"
} ],
"type": [ {
"code": "Quantity"
} ],
"sliceName": "valueQuantity",
"maxValueQuantity": {
"code": "1",
"value": 2,
"system": "http://unitsofmeasure.org"
},
"alias": [ "DecimaleVisusWaarde" ],
"id": "Observation.value[x]:valueQuantity",
"comment": "Visual acuity is measured a dimensionless decimal. Therefore, a pattern with unit '1' is defined on `.valueQuantity`.",
"patternQuantity": {
"code": "1",
"system": "http://unitsofmeasure.org"
},
"minValueQuantity": {
"code": "1",
"value": 0,
"system": "http://unitsofmeasure.org"
}
}, {
"id": "Observation.bodySite",
"path": "Observation.bodySite",
"type": [ {
"code": "CodeableConcept",
"profile": [ "http://nictiz.nl/fhir/StructureDefinition/zib-AnatomicalLocation" ]
} ],
"comment": "The code on this element is added to make explicit what is implicit in the zib. See [ZIB-1442](https://bits.nictiz.nl/browse/ZIB-1442) for details.",
"definition": "The laterality of the eye of which the visual acuity has been measured.",
"patternCodeableConcept": {
"coding": [ {
"code": "81745001",
"system": "http://snomed.info/sct"
} ]
}
}, {
"id": "Observation.bodySite.extension:laterality",
"path": "Observation.bodySite.extension",
"sliceName": "laterality"
}, {
"id": "Observation.bodySite.extension:laterality.value[x]",
"path": "Observation.bodySite.extension.value[x]",
"alias": [ "AnatomischeLocatie" ],
"short": "AnatomicalLocation",
"mapping": [ {
"map": "NL-CM:12.19.5",
"comment": "AnatomicalLocation",
"identity": "zib-visualacuity-v1.0-2020EN"
} ],
"definition": "The laterality of the eye of which the visual acuity has been measured."
}, {
"id": "Observation.device",
"path": "Observation.device",
"type": [ {
"code": "Reference",
"targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Device", "http://hl7.org/fhir/StructureDefinition/DeviceMetric", "http://nictiz.nl/fhir/StructureDefinition/zib-VisualAcuity.VisualAcuityMeasurementDevice" ]
} ]
}, {
"id": "Observation.component",
"path": "Observation.component",
"slicing": {
"rules": "open",
"discriminator": [ {
"path": "code",
"type": "value"
} ]
}
}, {
"id": "Observation.component:visualAcuityType",
"max": "1",
"path": "Observation.component",
"sliceName": "visualAcuityType"
}, {
"id": "Observation.component:visualAcuityType.code",
"path": "Observation.component.code",
"patternCodeableConcept": {
"coding": [ {
"code": "16830007",
"system": "http://snomed.info/sct"
} ]
}
}, {
"id": "Observation.component:visualAcuityType.value[x]",
"path": "Observation.component.value[x]",
"type": [ {
"code": "CodeableConcept"
} ],
"alias": [ "VisusMetingType" ],
"short": "VisualAcuityType",
"binding": {
"strength": "extensible",
"valueSet": "http://decor.nictiz.nl/fhir/ValueSet/2.16.840.1.113883.2.4.3.11.60.40.2.12.19.2--20200901000000"
},
"mapping": [ {
"map": "NL-CM:12.19.2",
"comment": "VisualAcuityType",
"identity": "zib-visualacuity-v1.0-2020EN"
} ],
"definition": "Type of visual acuity measurement."
}, {
"id": "Observation.component:visualAcuityMeasurementChart",
"max": "1",
"path": "Observation.component",
"sliceName": "visualAcuityMeasurementChart"
}, {
"id": "Observation.component:visualAcuityMeasurementChart.code",
"path": "Observation.component.code",
"patternCodeableConcept": {
"coding": [ {
"code": "363691001",
"system": "http://snomed.info/sct"
} ]
}
}, {
"id": "Observation.component:visualAcuityMeasurementChart.value[x]",
"path": "Observation.component.value[x]",
"type": [ {
"code": "CodeableConcept"
} ],
"alias": [ "VisusMetingKaart" ],
"short": "VisualAcuityMeasurementChart",
"binding": {
"strength": "extensible",
"valueSet": "http://decor.nictiz.nl/fhir/ValueSet/2.16.840.1.113883.2.4.3.11.60.40.2.12.19.3--20200901000000"
},
"mapping": [ {
"map": "NL-CM:12.19.7",
"comment": "VisualAcuityMeasurementChart",
"identity": "zib-visualacuity-v1.0-2020EN"
} ],
"definition": "The type of chart used for the visual acuity measurement."
}, {
"id": "Observation.component:distanceFromChart",
"max": "1",
"path": "Observation.component",
"sliceName": "distanceFromChart"
}, {
"id": "Observation.component:distanceFromChart.code",
"path": "Observation.component.code",
"comment": "This code aligns with the future version of this zib. See [ZIB-1441](https://bits.nictiz.nl/browse/ZIB-1441).",
"patternCodeableConcept": {
"coding": [ {
"code": "152731000146106",
"system": "http://snomed.info/sct"
} ]
}
}, {
"id": "Observation.component:distanceFromChart.value[x]",
"path": "Observation.component.value[x]",
"type": [ {
"code": "Quantity"
} ],
"alias": [ "AfstandTotKaart" ],
"short": "DistanceFromChart",
"mapping": [ {
"map": "NL-CM:12.19.8",
"comment": "DistanceFromChart",
"identity": "zib-visualacuity-v1.0-2020EN"
} ],
"definition": "Distance to the chart in meters",
"patternQuantity": {
"code": "m",
"system": "http://unitsofmeasure.org"
}
} ]
},
"contact": [ {
"name": "Nictiz",
"telecom": [ {
"use": "work",
"value": "https://www.nictiz.nl",
"system": "url"
} ]
} ],
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation"
}