{
  "description": "An extension to provide the frequency of smoking/tobacco use. A fitting SNOMED code does not yet exist, which complicates the usage of `Observation.component` for holding the frequency qualifier. Therefore an extension is used.",
  "_filename": "ext-SmokingStatus.FrequencyQualifier.json",
  "package_name": "healthdata.be.r4.cbb",
  "date": null,
  "derivation": "constraint",
  "publisher": "Healthdata.be (Sciensano)",
  "fhirVersion": "4.0.1",
  "name": "ExtSmokingStatusFrequencyQualifier",
  "abstract": false,
  "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": "Extension",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": "ext SmokingStatus.FrequencyQualifier",
  "package_version": "0.8.0-alpha",
  "status": "draft",
  "id": "05f37fcc-08aa-4f67-a8d4-6be3e38e6ae6",
  "kind": "complex-type",
  "url": "https://fhir.healthdata.be/StructureDefinition/ext-SmokingStatus.FrequencyQualifier",
  "context": [ {
    "type": "element",
    "expression": "Observation"
  } ],
  "version": null,
  "differential": {
    "element": [ {
      "id": "Extension",
      "max": "1",
      "path": "Extension"
    }, {
      "id": "Extension.url",
      "path": "Extension.url",
      "fixedUri": "https://fhir.healthdata.be/StructureDefinition/ext-SmokingStatus.FrequencyQualifier"
    }, {
      "id": "Extension.value[x]",
      "path": "Extension.value[x]",
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "alias": [ "Frequentie" ],
      "short": "Frequency",
      "binding": {
        "strength": "extensible",
        "valueSet": "https://fhir.healthdata.be/ValueSet/FrequencyQualifier",
        "description": "Frequency qualifier codes"
      },
      "definition": "The frequency of smoking or tobacco use."
    } ]
  },
  "contact": [ {
    "name": "Service portal – healthdata.be",
    "telecom": [ {
      "use": "work",
      "value": "https://sciensano.service-now.com/sp",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}