{
  "resourceType": "CodeSystem",
  "id": "reference-version-rules",
  "meta": {
    "lastUpdated": "2018-12-27T22:37:54.724+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:2.16.840.1.113883.4.642.1.90"
    }
  ],
  "version": "4.0.0",
  "name": "ReferenceVersionRules",
  "title": "ReferenceVersionRules",
  "status": "active",
  "experimental": false,
  "date": "2018-12-27T22:37:54+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."
    }
  ]
}