FHIR IG analytics

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Narrative

Note: links and images are rebased to the (stated) source

library ParameterExample

using FHIR version '4.0.1'

include FHIRHelpers version '4.0.1'

codesystem LOINC: 'http://loinc.org'
code "Blood Glucose": '2339-0' from LOINC display 'Glucose Bld-mCnc'

parameter GlucoseThreshold Quantity

context Patient

define "Blood Glucose Observations":
  [Observation: "Blood Glucose"] BG
    where BG.value > GlucoseThreshold

Encoded data (7948 characters)

Source1

{
  "resourceType": "Library",
  "id": "ParameterExample",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "contained": [
    {
      "resourceType": "Parameters",
      "id": "options",
      "parameter": [
        {
          "name": "translatorVersion",
          "valueString": "3.9.0"
        },
        {
          "name": "enableAnnotations",
          "valueBoolean": true
        },
        {
          "name": "enableLocators",
          "valueBoolean": true
        },
        {
          "name": "disableListDemotion",
          "valueBoolean": true
        },
        {
          "name": "disableListPromotion",
          "valueBoolean": true
        },
        {
          "name": "format",
          "valueString": "JSON"
        },
        {
          "name": "format",
          "valueString": "XML"
        },
        {
          "name": "analyzeDataRequirements",
          "valueBoolean": false
        },
        {
          "name": "collapseDataRequirements",
          "valueBoolean": true
        },
        {
          "name": "compatibilityLevel",
          "valueString": "1.5"
        },
        {
          "name": "enableCqlOnly",
          "valueBoolean": false
        },
        {
          "name": "errorLevel",
          "valueString": "Info"
        },
        {
          "name": "signatureLevel",
          "valueString": "Overloads"
        },
        {
          "name": "validateUnits",
          "valueBoolean": true
        },
        {
          "name": "verifyOnly",
          "valueBoolean": false
        }
      ]
    }
  ],
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/cqf-cqlOptions",
      "valueReference": {
        "reference": "#options"
      }
    }
  ],
  "url": "http://hl7.org/fhir/uv/cql/Library/ParameterExample",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.40.37.28.5"
    }
  ],
  "version": "2.1.0-cibuild",
  "name": "ParameterExample",
  "title": "Parameter Example",
  "status": "active",
  "experimental": true,
  "type": {
    "coding": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/library-type",
        "code": "logic-library"
      }
    ]
  },
  "date": "2026-04-01T14:57:20+00:00",
  "publisher": "HL7 International / Clinical Decision Support",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/dss"
        }
      ]
    }
  ],
  "description": "Example CQL library with a parameter defined, used to illustrate calling the $cql and Library/$evaluate operations with libraries that have parameters",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "relatedArtifact": [
    {
      "type": "depends-on",
      "display": "Library FHIRHelpers",
      "resource": "http://hl7.org/fhir/uv/cql/Library/FHIRHelpers|4.0.1"
    },
    {
      "type": "depends-on",
      "display": "Code System LOINC",
      "resource": "http://loinc.org"
    }
  ],
  "parameter": [
    {
      "name": "GlucoseThreshold",
      "use": "in",
      "min": 0,
      "max": "1",
      "type": "Quantity"
    },
    {
      "name": "Patient",
      "use": "out",
      "min": 0,
      "max": "1",
      "type": "Patient"
    },
    {
      "name": "Blood Glucose Observations",
      "use": "out",
      "min": 0,
      "max": "*",
      "type": "Observation"
    }
  ],
  "dataRequirement": [
    {
      "type": "Observation",
      "profile": [
        "http://hl7.org/fhir/StructureDefinition/Observation"
      ],
      "codeFilter": [
        {
          "path": "code",
          "code": [
            {
              "system": "http://loinc.org",
              "code": "2339-0",
              "display": "Glucose Bld-mCnc"
            }
          ]
        }
      ]
    }
  ],
  "content": [
    {
      "contentType": "text/cql",
      "data": "bGlicmFyeSBQYXJhbWV0ZXJFeGFtcGxlCgp1c2luZyBGSElSIHZlcnNpb24gJzQuMC4xJwoKaW5jbHVkZSBGSElSSGVscGVycyB2ZXJzaW9uICc0LjAuMScKCmNvZGVzeXN0ZW0gTE9JTkM6ICdodHRwOi8vbG9pbmMub3JnJwpjb2RlICJCbG9vZCBHbHVjb3NlIjogJzIzMzktMCcgZnJvbSBMT0lOQyBkaXNwbGF5ICdHbHVjb3NlIEJsZC1tQ25jJwoKcGFyYW1ldGVyIEdsdWNvc2VUaHJlc2hvbGQgUXVhbnRpdHkKCmNvbnRleHQgUGF0aWVudAoKZGVmaW5lICJCbG9vZCBHbHVjb3NlIE9ic2VydmF0aW9ucyI6CiAgW09ic2VydmF0aW9uOiAiQmxvb2QgR2x1Y29zZSJdIEJHCiAgICB3aGVyZSBCRy52YWx1ZSA+IEdsdWNvc2VUaHJlc2hvbGQK"
    },
    {
      "contentType": "application/elm+json",
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    }
  ]
}