{ "description": "Sort key values allow laboratories to suggest the sequence of test requests and observations within a single order or test request to organize the display of the patient report by other external systems (e.g., a practitioner’s electronic medical record system).", "_filename": "SortKey.json", "package_name": "ca.on.ehr.r4", "date": "2022-01-12T04:28:00.3301862+00:00", "derivation": "constraint", "meta": { "lastUpdated": "2022-01-12T04:29:35.896+00:00" }, "publisher": null, "fhirVersion": "4.0.1", "purpose": "To allow laboratories to suggest the sequence of test requests and observations.", "name": "SortKey", "abstract": false, "type": "Extension", "experimental": null, "resourceType": "StructureDefinition", "title": null, "package_version": "0.9.2", "status": "draft", "id": "82e7a1c4-cadd-435c-81b2-c351d9d8dc14", "kind": "complex-type", "url": "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-sort-key", "context": [ { "type": "element", "expression": "ServiceRequest" }, { "type": "element", "expression": "Observation" } ], "version": null, "differential": { "element": [ { "id": "Extension", "max": "1", "path": "Extension", "isModifier": false }, { "id": "Extension.url", "path": "Extension.url", "fixedUri": "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-sort-key" }, { "id": "Extension.value[x]", "path": "Extension.value[x]", "type": [ { "code": "string" } ], "slicing": { "discriminator": [ { "path": "$this", "type": "type" } ] } } ] }, "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension" }