{
  "description": "Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in.",
  "_filename": "StructureDefinition-codesystem-usage.json",
  "package_name": "hl7.fhir.r2b.examples",
  "date": null,
  "derivation": "constraint",
  "publisher": "HL7",
  "fhirVersion": "1.6.0",
  "name": "Who has used and how?",
  "baseType": "Extension",
  "abstract": false,
  "type": null,
  "experimental": "false",
  "resourceType": "StructureDefinition",
  "title": null,
  "package_version": "1.4.0",
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        "code": "Coding"
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        "code": "Quantity"
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        "code": "Range"
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        "code": "Period"
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        "code": "Ratio"
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        "code": "SampledData"
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        "code": "Signature"
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        "code": "HumanName"
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        "code": "Address"
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        "code": "Timing"
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  "url": "http://hl7.org/fhir/StructureDefinition/codesystem-usage",
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}