{
  "resourceType": "StructureDefinition",
  "id": "cqm-ValidityPeriod",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "sd"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod",
  "version": "4.0.0",
  "name": "ValidityPeriod",
  "status": "draft",
  "date": "2014-01-31",
  "publisher": "Health Level Seven, Inc. - Clinical Quality Information WG",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/cqi/index.cfm"
        }
      ]
    }
  ],
  "description": "The period in which the catalog is valid.",
  "fhirVersion": "4.0.0",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Composition"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Validity Period",
        "definition": "The period in which the catalog is valid.",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod"
      },
      {
        "id": "Extension.valueDateTime",
        "path": "Extension.valueDateTime",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      }
    ]
  }
}