http://hl7.org/fhir/unknown-content-code|4.0.1

{
  "description" : "A code that indicates whether an application accepts unknown elements or extensions when reading resources.",
  "compose" : null,
  "package" : "hl7.fhir.r4.core@4.0.1",
  "date" : "2019-10-31T22:29:23Z",
  "meta" : {
    "lastUpdated" : "2019-11-01T09:29:23.356+11:00"
  },
  "publisher" : "HL7 (FHIR Project)",
  "content" : "complete",
  "name" : "UnknownContentCode",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "UnknownContentCode",
  "supliment" : null,
  "status" : "draft",
  "id" : "6128da8e-336c-56a9-b1bb-2881e3e043f9",
  "valueSet" : "http://hl7.org/fhir/ValueSet/unknown-content-code",
  "url" : "http://hl7.org/fhir/unknown-content-code",
  "identifier" : [ {
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.197",
    "system" : "urn:ietf:rfc:3986"
  } ],
  "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."
  } ],
  "caseSensitive" : true,
  "version" : "4.0.1",
  "contact" : [ {
    "telecom" : [ {
      "value" : "http://hl7.org/fhir",
      "system" : "url"
    }, {
      "value" : "fhir@lists.hl7.org",
      "system" : "email"
    } ]
  } ]
}