{

"resourceType": "CodeSystem",
"id": "reference-version-rules",
"meta": {
  "lastUpdated": "2019-11-01T09:29:23.356+11:00"
},
"extension": [
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "fhir"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "normative"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
    "valueCode": "4.0.0"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 2
  }
],
"url": "http://hl7.org/fhir/reference-version-rules",
"identifier": [
  {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.4.90"
  }
],
"version": "4.0.1",
"name": "ReferenceVersionRules",
"title": "ReferenceVersionRules",
"status": "active",
"experimental": false,
"date": "2019-11-01T09:29:23+11:00",
"publisher": "HL7 (FHIR Project)",
"contact": [
  {
    "telecom": [
      {
        "system": "url",
        "value": "http://hl7.org/fhir"
      },
      {
        "system": "email",
        "value": "fhir@lists.hl7.org"
      }
    ]
  }
],
"description": "Whether a reference needs to be version specific or version independent, or whether either can be used.",
"caseSensitive": true,
"valueSet": "http://hl7.org/fhir/ValueSet/reference-version-rules",
"content": "complete",
"concept": [
  {
    "code": "either",
    "display": "Either Specific or independent",
    "definition": "The reference may be either version independent or version specific."
  },
  {
    "code": "independent",
    "display": "Version independent",
    "definition": "The reference must be version independent."
  },
  {
    "code": "specific",
    "display": "Version Specific",
    "definition": "The reference must be version specific."
  }
]

}