{
  "description": "This measure exemplifies use of FHIRPath expressions in a FHIR Measure",
  "_filename": "example/Measure-FHIRPath-example.json",
  "package_name": "hl7.fhir.uv.deqm",
  "date": "2024-05-18T21:25:01+00:00",
  "group": [ {
    "code": {
      "text": "Ventilator Reporting",
      "coding": [ {
        "code": "Ventilators",
        "system": "http://example.org/fhir/",
        "display": "Ventilators"
      } ]
    },
    "extension": [ {
      "url": "http://example.org/fhir/MeasureGroupAttributes",
      "extension": [ {
        "url": "subject",
        "valueCodeableConcept": {
          "text": "Ventilator capacity",
          "coding": [ {
            "code": "Device",
            "system": "http://hl7.org/fhir/resource-types"
          }, {
            "code": "257463002",
            "system": "http://snomed.info/sct",
            "display": "Ventilator Outlet"
          } ]
        }
      }, {
        "url": "scoring",
        "valueCodeableConcept": {
          "coding": [ {
            "code": "capacity",
            "system": "http://example.org/fhir/"
          } ]
        }
      }, {
        "url": "type",
        "valueCodeableConcept": {
          "coding": [ {
            "code": "structure",
            "system": "http://terminology.hl7.org/CodeSystem/measure-type"
          } ]
        }
      }, {
        "url": "improvementNotation",
        "valueCodeableConcept": {
          "coding": [ {
            "code": "decrease",
            "system": "http://terminology.hl7.org/CodeSystem/measure-improvement-notation"
          } ]
        }
      }, {
        "url": "rateAggregation",
        "valueString": "point-in-time"
      } ]
    } ],
    "population": [ {
      "code": {
        "text": "Total number of ventilators",
        "coding": [ {
          "code": "numVent",
          "system": "http://example.org/fhir/",
          "display": "Mechanical Ventilators"
        }, {
          "code": "denominator",
          "system": "http://terminology.hl7.org/CodeSystem/measure-population"
        } ]
      },
      "criteria": {
        "name": "NumVent",
        "language": "text/fhirpath",
        "expression": "iif(trace('PriorReport exists:', %PriorReport.exists()), %PriorReport.group[3].population[0].count, 0)",
        "description": "Computes the total number of ventilators from the previously reported MeasureReport"
      },
      "description": "Count of all ventilators that can support patient care, whether or not they are presently in use."
    }, {
      "code": {
        "text": "Total number of ventilators in use",
        "coding": [ {
          "code": "numVentUse",
          "system": "http://example.org/fhir/",
          "display": "Mechanical Ventilators in Use"
        }, {
          "code": "numerator",
          "system": "http://terminology.hl7.org/CodeSystem/measure-population"
        } ]
      },
      "criteria": {
        "name": "NumVentUse",
        "language": "text/fhirpath",
        "expression": "findAll('Encounter',\n including('subject'),\n with('status').equalTo('in-progress'|'finished'),\n with('date').within(%ReportingPeriod)\n).onServers(%Base)\n.select(entry.resource as Patient)\n.where(\n  iif(\n    whereExists('Observation',\n      with('status').equalTo('registered'|'preliminary'|'final'|'amended'|'corrected'),\n      with('patient').equalTo($this.id),\n      with('verificationStatus').notEqualTo('refuted'|'entered-in-error'),\n      with('date').within(%ReportingPeriod),\n      with('code').in(%VentilatorObservations.url)\n    ).onServers(%Base)\n    true,\n    whereExists('Procedure',\n      with('status').equalTo('in-progress'|'completed'),\n      with('patient').equalTo($this.id),\n      with('date').within(%ReportingPeriod),\n      with('code').in(%VentilatorProcedures.url)\n    ).onServers(%Base)\n  )\n)",
        "description": "Identifies the number of ventilators in use by counting Patient with an Observation\n or Procedure resource from an appropriate value set indicating ventilator use."
      },
      "description": "Count of all ventilators in use."
    }, {
      "code": {
        "text": "Total number of ventilators not presently in use.",
        "coding": [ {
          "code": "numVentAvail",
          "system": "http://example.org/fhir/",
          "display": "Mechanical Ventilators Available"
        }, {
          "code": "numerator-complement",
          "system": "http://example.org/fhir/"
        } ]
      },
      "criteria": {
        "name": "NumVentAvail",
        "language": "text/fhirpath",
        "expression": "%NumVent - %NumVentUse.total.toInteger()",
        "description": "Computes the number of ventilators available by substracting the number of ventilators in use\n determined by population 1 from thee total number of ventilators given in population 0"
      },
      "description": "Count of all ventilators not presently in use."
    } ]
  } ],
  "publisher": "HL7 International / Clinical Quality Information",
  "jurisdiction": [ {
    "coding": [ {
      "code": "001",
      "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "display": "World"
    } ]
  } ],
  "name": "FHIRPathExample",
  "useContext": [ {
    "code": {
      "code": "focus",
      "system": "http://terminology.hl7.org/CodeSystem/usage-context-type"
    },
    "valueCodeableConcept": {
      "coding": [ {
        "code": "840539006",
        "system": "http://snomed.info/sct",
        "display": "COVID-19"
      } ]
    }
  } ],
  "type": null,
  "experimental": "true",
  "resourceType": "Measure",
  "title": "Example of a Measure using FHIRPath",
  "package_version": "1.0.0-ballot",
  "status": "draft",
  "id": "c95d8325-7b49-41a8-bc23-89e01f4a4ee4",
  "kind": null,
  "url": "http://hl7.org/fhir/uv/deqm/Measure/FHIRPath-example",
  "identifier": [ {
    "value": "urn:oid:2.16.840.1.113883.4.642.40.42.29.4",
    "system": "urn:ietf:rfc:3986"
  } ],
  "version": "1.0.0-ballot",
  "relatedArtifact": [ {
    "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/acute-care-hospital/covid19/",
    "type": "documentation",
    "label": "NHSN COVID-19 Reporting",
    "display": "CDC/NHSN COVID-19 Patient Impact & Hospital Capacity Module Home Page",
    "document": {
      "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/acute-care-hospital/covid19/"
    }
  }, {
    "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/pdfs/covid19/import-covid19-data-508.pdf",
    "type": "documentation",
    "label": "How to import COVID-19 Summary Data",
    "display": "Importing COVID-19 Patient Module Denominator data for Patient Safety Component",
    "document": {
      "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/pdfs/covid19/import-covid19-data-508.pdf"
    }
  }, {
    "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/pdfs/covid19/57.130-toi-508.pdf",
    "type": "documentation",
    "label": "Table of Instructions",
    "display": "Instructions for Completion of the COVID-19 Patient Impact and Hospital Capacity Module Form (CDC 57.130)",
    "document": {
      "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/pdfs/covid19/57.130-toi-508.pdf"
    }
  }, {
    "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/pdfs/covid19/covid19-test-csv-import.csv",
    "type": "documentation",
    "label": "CSV File Template",
    "display": "CDC/NHSN COVID-19 Reporting CSV File Template",
    "document": {
      "url": "https://web.archive.org/web/20200501215043/https://www.cdc.gov/nhsn/pdfs/covid19/covid19-test-csv-import.csv"
    }
  } ],
  "contact": [ {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/cqi",
      "system": "url"
    } ]
  } ]
}