{

"resourceType": "CodeSystem",
"id": "unknown-content-code",
"meta": {
  "lastUpdated": "2019-11-01T09:29:23.356+11:00"
},
"url": "http://hl7.org/fhir/unknown-content-code",
"identifier": [
  {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.4.197"
  }
],
"version": "4.0.1",
"name": "UnknownContentCode",
"title": "UnknownContentCode",
"status": "draft",
"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 code that indicates whether an application accepts unknown elements or extensions when reading resources.",
"caseSensitive": true,
"valueSet": "http://hl7.org/fhir/ValueSet/unknown-content-code",
"content": "complete",
"concept": [
  {
    "code": "no",
    "display": "Neither Elements or Extensions",
    "definition": "The application does not accept either unknown elements or extensions."
  },
  {
    "code": "extensions",
    "display": "Unknown Extensions",
    "definition": "The application accepts unknown extensions, but not unknown elements."
  },
  {
    "code": "elements",
    "display": "Unknown Elements",
    "definition": "The application accepts unknown elements, but not unknown extensions."
  },
  {
    "code": "both",
    "display": "Unknown Elements and Extensions",
    "definition": "The application accepts unknown elements and extensions."
  }
]

}