{

"resourceType": "CodeSystem",
"id": "reference-handling-policy",
"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": 5
  }
],
"url": "http://hl7.org/fhir/reference-handling-policy",
"identifier": [
  {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.4.203"
  }
],
"version": "4.0.1",
"name": "ReferenceHandlingPolicy",
"title": "ReferenceHandlingPolicy",
"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": "A set of flags that defines how references are supported.",
"caseSensitive": true,
"valueSet": "http://hl7.org/fhir/ValueSet/reference-handling-policy",
"content": "complete",
"concept": [
  {
    "code": "literal",
    "display": "Literal References",
    "definition": "The server supports and populates Literal references (i.e. using Reference.reference) where they are known (this code does not guarantee that all references are literal; see 'enforced')."
  },
  {
    "code": "logical",
    "display": "Logical References",
    "definition": "The server allows logical references (i.e. using Reference.identifier)."
  },
  {
    "code": "resolves",
    "display": "Resolves References",
    "definition": "The server will attempt to resolve logical references to literal references - i.e. converting Reference.identifier to Reference.reference (if resolution fails, the server may still accept resources; see logical)."
  },
  {
    "code": "enforced",
    "display": "Reference Integrity Enforced",
    "definition": "The server enforces that references have integrity - e.g. it ensures that references can always be resolved. This is typically the case for clinical record systems, but often not the case for middleware/proxy systems."
  },
  {
    "code": "local",
    "display": "Local References Only",
    "definition": "The server does not support references that point to other servers."
  }
]

}