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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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            "isModifier": true
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          {
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                "code": "id"
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          },
          {
            "path": "Extension.extension",
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            "type": [
              {
                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/qicore-adverseevent-didNotOccur"
          },
          {
            "path": "Extension.valueBoolean",
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            "max": "1",
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              "path": "Extension.value[x]",
              "min": 0,
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            "type": [
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                "code": "boolean"
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        ]
      }
    }
  },
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/allergyintolerance-resolutionAge",
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      "resourceType": "StructureDefinition",
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      "url": "http://hl7.org/fhir/StructureDefinition/allergyintolerance-resolutionAge",
      "name": "Age that the allergy or intolerance resolved",
      "display": "resolutionAge",
      "status": "draft",
      "date": "2015-02-21",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "resource",
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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          },
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            "path": "Extension.valueQuantity",
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              "max": "1"
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            "type": [
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                "code": "Quantity",
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              }
            ],
            "constraint": [
              {
                "key": "qty-3",
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                "human": "If a code for the unit is present, the system SHALL also be present",
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              },
              {
                "key": "age-1",
                "severity": "error",
                "human": "There SHALL be a code if there is a value and it SHALL be an expression of time.  If system is present, it SHALL be UCUM.  If value is present, it SHALL be positive.",
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            "isSummary": true
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        ]
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    }
  },
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/diagnosticorder-reason",
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      "resourceType": "StructureDefinition",
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      "url": "http://hl7.org/fhir/StructureDefinition/diagnosticorder-reason",
      "name": "Reason for this order",
      "display": "reason",
      "status": "draft",
      "date": "2015-02-21",
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      "kind": "datatype",
      "constrainedType": "Extension",
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/diagnosticorder-reason"
          },
          {
            "path": "Extension.valueCodeableConcept",
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            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
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            "type": [
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        ]
      }
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  },
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/conformance-prohibited",
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      "url": "http://hl7.org/fhir/StructureDefinition/conformance-prohibited",
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      "display": "Conformance prohibition",
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      "context": [
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            "path": "Extension.valueBoolean",
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      "name": "Is code the DEC for the data element?",
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      "date": "2014-04-21",
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          {
            "path": "Extension.valueBoolean",
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            "path": "Extension.id",
            "representation": [
              "xmlAttr"
            ],
            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "id"
              }
            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
              }
            ]
          },
          {
            "path": "Extension.url",
            "representation": [
              "xmlAttr"
            ],
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
            },
            "type": [
              {
                "code": "uri"
              }
            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/pharmacy-core-infuseOver"
          },
          {
            "path": "Extension.valueQuantity",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "Quantity",
                "profile": [
                  "http://hl7.org/fhir/StructureDefinition/Duration"
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              }
            ],
            "constraint": [
              {
                "key": "qty-3",
                "severity": "error",
                "human": "If a code for the unit is present, the system SHALL also be present",
                "xpath": "not(exists(f:code)) or exists(f:system)"
              },
              {
                "key": "drt-1",
                "severity": "error",
                "human": "There SHALL be a code if there is a value and it SHALL be an expression of time.  If system is present, it SHALL be UCUM.",
                "xpath": "(f:code or not(f:value)) and (not(exists(f:system)) or f:system/@value='http://unitsofmeasure.org')"
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            ],
            "isSummary": true
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/referralrequest-reasonRefused",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "referralrequest-reasonRefused",
      "url": "http://hl7.org/fhir/StructureDefinition/referralrequest-reasonRefused",
      "name": "Reason referral was refused",
      "display": "reasonRefused",
      "status": "draft",
      "date": "2015-02-21",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "resource",
      "context": [
        "ReferralRequest"
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
        "element": [
          {
            "path": "Extension",
            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension",
              "min": 0,
              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
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            ]
          },
          {
            "path": "Extension.id",
            "representation": [
              "xmlAttr"
            ],
            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "id"
              }
            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
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            ]
          },
          {
            "path": "Extension.url",
            "representation": [
              "xmlAttr"
            ],
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
            },
            "type": [
              {
                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/referralrequest-reasonRefused"
          },
          {
            "path": "Extension.valueCodeableConcept",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "CodeableConcept"
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            ]
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/pharmacy-core-doseType",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "pharmacy-core-doseType",
      "url": "http://hl7.org/fhir/StructureDefinition/pharmacy-core-doseType",
      "name": "The type of dose, e.g., loading.",
      "display": "doseType",
      "status": "draft",
      "date": "2015-02-21",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "resource",
      "context": [
        "MedicationOrder.dosageInstruction",
        "MedicationDispense.dosageInstruction"
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
        "element": [
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            "path": "Extension",
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            "max": "1",
            "base": {
              "path": "Extension",
              "min": 0,
              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
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            ]
          },
          {
            "path": "Extension.id",
            "representation": [
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            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
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            "type": [
              {
                "code": "id"
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            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
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            ]
          },
          {
            "path": "Extension.url",
            "representation": [
              "xmlAttr"
            ],
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
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            "type": [
              {
                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/pharmacy-core-doseType"
          },
          {
            "path": "Extension.valueCodeableConcept",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "CodeableConcept"
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            ]
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/diagnosticorder-reasonRejected",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "diagnosticorder-reasonRejected",
      "url": "http://hl7.org/fhir/StructureDefinition/diagnosticorder-reasonRejected",
      "name": "The reason the order was rejected",
      "display": "reasonRejected",
      "status": "draft",
      "date": "2015-02-21",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "resource",
      "context": [
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
        "element": [
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              "max": "*"
            },
            "type": [
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                "code": "Extension"
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          },
          {
            "path": "Extension.id",
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            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
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            "type": [
              {
                "code": "id"
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            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
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            "type": [
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                "code": "Extension"
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          },
          {
            "path": "Extension.url",
            "representation": [
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            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
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            "type": [
              {
                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/diagnosticorder-reasonRejected"
          },
          {
            "path": "Extension.valueCodeableConcept",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
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                "code": "CodeableConcept"
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            ]
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-deliveryAddressLine",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "iso21090-ADXP-deliveryAddressLine",
      "url": "http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-deliveryAddressLine",
      "name": "deliveryAddressLine",
      "status": "draft",
      "date": "2012-06-24",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "datatype",
      "context": [
        "Address"
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
        "element": [
          {
            "path": "Extension",
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              "path": "Extension",
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            },
            "type": [
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                "code": "Extension"
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          },
          {
            "path": "Extension.id",
            "representation": [
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            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "id"
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            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
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            "type": [
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                "code": "Extension"
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            ]
          },
          {
            "path": "Extension.url",
            "representation": [
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            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
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            "type": [
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                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-deliveryAddressLine"
          },
          {
            "path": "Extension.valueString",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "string"
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            ]
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/geneticsAminoAcidChange",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "geneticsAminoAcidChange",
      "url": "http://hl7.org/fhir/StructureDefinition/geneticsAminoAcidChange",
      "name": "HGVSproteinChange",
      "status": "draft",
      "date": "2015-03-18",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "resource",
      "context": [
        "Observation"
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
        "element": [
          {
            "path": "Extension",
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            "base": {
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              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
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          },
          {
            "path": "Extension.id",
            "representation": [
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            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
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            "type": [
              {
                "code": "id"
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            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
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            "type": [
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                "code": "Extension"
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          },
          {
            "path": "Extension.url",
            "representation": [
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            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
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            "type": [
              {
                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/geneticsAminoAcidChange"
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          {
            "path": "Extension.valueString",
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            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
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            "type": [
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            ]
          }
        ]
      }
    }
  },
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty",
    "resource": {
      "resourceType": "StructureDefinition",
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      "url": "http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty",
      "name": "Standard Deviation (same units as the quantity)",
      "status": "draft",
      "date": "2012-06-24",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
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      "contextType": "datatype",
      "context": [
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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        "element": [
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            "type": [
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          },
          {
            "path": "Extension.id",
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            "min": 0,
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          },
          {
            "path": "Extension.extension",
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            "type": [
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          },
          {
            "path": "Extension.url",
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            "min": 1,
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              "path": "Extension.url",
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            "path": "Extension.valueDecimal",
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            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
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            "type": [
              {
                "code": "decimal"
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  },
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      "kind": "datatype",
      "constrainedType": "Extension",
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      "contextType": "resource",
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        "Questionnaire.group",
        "Questionnaire.group.group",
        "Questionnaire.group.question"
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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            "type": [
              {
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                "key": "inv-1",
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          },
          {
            "path": "Extension.id",
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          },
          {
            "path": "Extension.extension",
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            "max": "0",
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          },
          {
            "path": "Extension.url",
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          {
            "path": "Extension.valueInteger",
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            "max": "1",
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              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
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            "type": [
              {
                "code": "integer"
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          }
        ]
      }
    }
  },
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      "resourceType": "StructureDefinition",
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      "url": "http://hl7.org/fhir/StructureDefinition/patient-citizenship",
      "name": "Nation(s) where the patient claims citizenship",
      "display": "citizenship",
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      "date": "2015-10-24T07:41:03+11:00",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
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      "contextType": "resource",
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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            "path": "Extension.extension.url",
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            "path": "Extension.extension",
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              },
              {
                "code": "Signature"
              },
              {
                "code": "HumanName"
              },
              {
                "code": "Address"
              },
              {
                "code": "ContactPoint"
              },
              {
                "code": "Timing"
              },
              {
                "code": "Reference"
              },
              {
                "code": "Meta"
              }
            ]
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/valueset-warning",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "valueset-warning",
      "url": "http://hl7.org/fhir/StructureDefinition/valueset-warning",
      "name": "Extra warning about the correct use of the value set",
      "status": "draft",
      "date": "2015-10-24T07:41:03+11:00",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
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      "contextType": "resource",
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
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            "path": "Extension",
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            "max": "1",
            "base": {
              "path": "Extension",
              "min": 0,
              "max": "*"
            },
            "type": [
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                "code": "Extension"
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            ],
            "isModifier": false
          },
          {
            "path": "Extension.id",
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            ],
            "min": 0,
            "max": "1",
            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "id"
              }
            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
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            ]
          },
          {
            "path": "Extension.url",
            "representation": [
              "xmlAttr"
            ],
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
            },
            "type": [
              {
                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/valueset-warning"
          },
          {
            "path": "Extension.valueMarkdown",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "markdown"
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            ]
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/11179-permitted-value-valueset",
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      "resourceType": "StructureDefinition",
      "id": "11179-permitted-value-valueset",
      "url": "http://hl7.org/fhir/StructureDefinition/11179-permitted-value-valueset",
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      "display": "Permitted Values",
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      "date": "2014-04-21",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
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      "contextType": "resource",
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
        "element": [
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            "path": "Extension",
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            ]
          },
          {
            "path": "Extension.extension",
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            "base": {
              "path": "Extension.extension",
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              "max": "*"
            },
            "type": [
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            ]
          },
          {
            "path": "Extension.url",
            "representation": [
              "xmlAttr"
            ],
            "min": 1,
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            "base": {
              "path": "Extension.url",
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          },
          {
            "path": "Extension.valueReference",
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            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "Reference",
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              }
            ]
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/sdc-questionnaire-specialGroup",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "sdc-questionnaire-specialGroup",
      "url": "http://hl7.org/fhir/StructureDefinition/sdc-questionnaire-specialGroup",
      "name": "header | footer",
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      "date": "2014-04-21",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "resource",
      "context": [
        "@Questionnaire.group"
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
      "snapshot": {
        "element": [
          {
            "path": "Extension",
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            "max": "1",
            "base": {
              "path": "Extension",
              "min": 0,
              "max": "*"
            },
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          },
          {
            "path": "Extension.id",
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            ],
            "min": 0,
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            "base": {
              "path": "Extension.id",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "id"
              }
            ]
          },
          {
            "path": "Extension.extension",
            "name": "extension",
            "min": 0,
            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
            },
            "type": [
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                "code": "Extension"
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          },
          {
            "path": "Extension.url",
            "representation": [
              "xmlAttr"
            ],
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
            },
            "type": [
              {
                "code": "uri"
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/sdc-questionnaire-specialGroup"
          },
          {
            "path": "Extension.valueCode",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "code"
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            ],
            "binding": {
              "strength": "required",
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              "valueSetReference": {
                "reference": "http://hl7.org/fhir/ValueSet/sdc-group-special-type"
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            }
          }
        ]
      }
    }
  },
  {
    "fullUrl": "http://hl7.org/fhir/StructureDefinition/elementdefinition-question",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "elementdefinition-question",
      "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-question",
      "name": "Prompt for element phrased as question",
      "status": "draft",
      "date": "2015-02-28",
      "fhirVersion": "1.0.2",
      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "datatype",
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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            },
            "type": [
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          },
          {
            "path": "Extension.extension",
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            "path": "Extension.url",
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                "code": "uri"
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            "fixedUri": "http://hl7.org/fhir/StructureDefinition/elementdefinition-question"
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            "path": "Extension.valueString",
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            "max": "1",
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              "path": "Extension.value[x]",
              "min": 0,
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        ]
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/procedure-incisionDateTime",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "procedure-incisionDateTime",
      "url": "http://hl7.org/fhir/StructureDefinition/procedure-incisionDateTime",
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      "display": "incisionDateTime",
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      "date": "2015-02-12",
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      "kind": "datatype",
      "constrainedType": "Extension",
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      "contextType": "resource",
      "context": [
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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                "code": "Extension"
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            "path": "Extension.url",
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            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/procedure-incisionDateTime"
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          {
            "path": "Extension.valueDateTime",
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            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
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                "code": "dateTime"
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            ]
          }
        ]
      }
    }
  },
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/pharmacy-core-rateIncrement",
    "resource": {
      "resourceType": "StructureDefinition",
      "id": "pharmacy-core-rateIncrement",
      "url": "http://hl7.org/fhir/StructureDefinition/pharmacy-core-rateIncrement",
      "name": "Change in dosing rate per interval",
      "display": "rateIncrement",
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      "date": "2015-02-21",
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      "kind": "datatype",
      "constrainedType": "Extension",
      "abstract": false,
      "contextType": "resource",
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        "MedicationOrder.dosageInstruction",
        "MedicationDispense.dosageInstruction"
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      "base": "http://hl7.org/fhir/StructureDefinition/Extension",
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                "code": "uri"
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            "path": "Extension.valueRatio",
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            "max": "1",
            "base": {
              "path": "Extension.value[x]",
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              "max": "1"
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            "type": [
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                "code": "Ratio"
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            ]
          }
        ]
      }
    }
  },
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration",
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      "resourceType": "StructureDefinition",
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      "kind": "datatype",
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              "path": "Extension.value[x]",
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            ],
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              {
                "key": "drt-1",
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              "path": "Extension.url",
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            "path": "Extension.valuePeriod",
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            "max": "1",
            "base": {
              "path": "Extension.value[x]",
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              "max": "1"
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            "type": [
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                "code": "Period"
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/iso21090-ADXP-deliveryInstallationQualifier",
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      "resourceType": "StructureDefinition",
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      "contextType": "datatype",
      "context": [
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            "path": "Extension.url",
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              "path": "Extension.url",
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                "code": "uri"
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            "path": "Extension.valueString",
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              "path": "Extension.value[x]",
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        ]
      }
    }
  },
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/us-core-religion",
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      "resourceType": "StructureDefinition",
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      "url": "http://hl7.org/fhir/StructureDefinition/us-core-religion",
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      "date": "2013-12-03",
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    "fullUrl": "http://hl7.org/fhir/StructureDefinition/allergyintolerance-duration",
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      "resourceType": "StructureDefinition",
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            "max": "0",
            "base": {
              "path": "Extension.extension",
              "min": 0,
              "max": "*"
            },
            "type": [
              {
                "code": "Extension"
              }
            ]
          },
          {
            "path": "Extension.url",
            "representation": [
              "xmlAttr"
            ],
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.url",
              "min": 1,
              "max": "1"
            },
            "type": [
              {
                "code": "uri"
              }
            ],
            "fixedUri": "http://hl7.org/fhir/StructureDefinition/valueset-sourceReference"
          },
          {
            "path": "Extension.valueUri",
            "min": 1,
            "max": "1",
            "base": {
              "path": "Extension.value[x]",
              "min": 0,
              "max": "1"
            },
            "type": [
              {
                "code": "uri"
              }
            ]
          }
        ]
      }
    }
  }
]

}