{
  "observationResultRequirement": [ {
    "reference": "ObservationDefinition/example-observation-serum-sodium"
  }, {
    "reference": "ObservationDefinition/example-observation-serum-potassium"
  }, {
    "reference": "ObservationDefinition/example-observation-serum-chloride"
  } ],
  "description": "Na, K, Cl level measurements on serum or plasma",
  "_filename": "example/ActivityDefinition-example-lab-blood-electrolyte.json",
  "package_name": "hl7.fhir.uv.order-catalog",
  "date": "2020-02-11T14:00:00+02:00",
  "meta": {
    "profile": [ "http://hl7.org/fhir/uv/order-catalog/StructureDefinition/LabProcedureDefinition" ]
  },
  "publisher": "HL7 International - Orders and Observations Work Group",
  "jurisdiction": [ {
    "coding": [ {
      "code": "001",
      "system": "http://unstats.un.org/unsd/methods/m49/m49.htm"
    } ]
  } ],
  "observationRequirement": [ {
    "reference": "ObservationDefinition/example-input-observation-reason-for-ordering"
  } ],
  "purpose": "This _ActivityDefinition_ specifies the input specimens and input and output observations for blood electrolyte.              It is referenced by any _PlanDefinition_ representing a lab service incorporating this procedure.",
  "name": "BloodElectrolyteProcedure",
  "type": null,
  "experimental": "true",
  "topic": [ {
    "coding": [ {
      "code": "166312007",
      "system": "http://snomed.info/sct",
      "display": "Blood chemistry"
    } ]
  } ],
  "resourceType": "ActivityDefinition",
  "title": "Procedure - blood electrolyte (serum or plasma)",
  "package_version": "0.1.0",
  "status": "draft",
  "language": "en-US",
  "id": "c803f5d4-7175-4144-bf81-7cb5ddbbf6a0",
  "kind": "ServiceRequest",
  "url": "http://hl7.org/fhir/uv/order-catalog/ActivityDefinition/example-lab-blood-electrolyte",
  "code": {
    "coding": [ {
      "code": "24326-1",
      "system": "http://loinc.org",
      "display": "Electrolytes 1998 panel - Serum or Plasma"
    } ]
  },
  "version": "0.1.0",
  "contact": [ {
    "telecom": [ {
      "value": "http://hl7.org/Special/committees/orders",
      "system": "url"
    } ]
  } ]
}