http://hl7.org/fhir/StructureDefinition/CodeSystem|4.0.1

The CodeSystem resource is used to declare the existence of and describe a code system or code system supplement and its key properties, and optionally define a part or all of its content.
{
  "description": "The CodeSystem resource is used to declare the existence of and describe a code system or code system supplement and its key properties, and optionally define a part or all of its content.",
  "package": "hl7.fhir.r4.core@4.0.1",
  "date": "2019-10-31T22:29:23Z",
  "derivation": "specialization",
  "meta": {
    "lastUpdated": "2019-11-01T09:29:23.356+11:00"
  },
  "publisher": "Health Level Seven International (Vocabulary)",
  "fhirVersion": "4.0.1",
  "name": "CodeSystem",
  "mapping": [ {
    "uri": "http://hl7.org/v3",
    "name": "RIM Mapping",
    "identity": "rim"
  }, {
    "uri": "http://hl7.org/fhir/workflow",
    "name": "Workflow Pattern",
    "identity": "workflow"
  }, {
    "uri": "http://hl7.org/fhir/fivews",
    "name": "FiveWs Pattern Mapping",
    "identity": "w5"
  }, {
    "uri": "http://hl7.org/fhir/object-implementation",
    "name": "Object Implementation Information",
    "identity": "objimpl"
  } ],
  "abstract": false,
  "type": "CodeSystem",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "fhirversion": null,
  "title": null,
  "versionAlgorithmCoding": null,
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-category",
    "valueString": "Foundation.Terminology"
  }, {
    "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/StructureDefinition/structuredefinition-security-category",
    "valueCode": "anonymous"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "vocab"
  } ],
  "status": "active",
  "id": "e89ea331-aff4-5272-b94a-f869f02f29df",
  "kind": "resource",
  "url": "http://hl7.org/fhir/StructureDefinition/CodeSystem",
  "identifier": null,
  "_baseDefinition": {
    "extension": [ {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-codegen-super",
      "valueString": "MetadataResource"
    } ]
  },
  "versionAlgorithmString": null,
  "fhir_id": null,
  "version": "4.0.1",
  "contact": [ {
    "telecom": [ {
      "value": "http://hl7.org/fhir",
      "system": "url"
    } ]
  }, {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/Vocab/index.cfm",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/DomainResource"
}