{
  "resourceType": "StructureDefinition",
  "id": "ext-Document",
  "url": "https://vitalhub.com/fhir/StructureDefinition/ext-Document",
  "name": "DocumentExtension",
  "title": "Document Extension",
  "status": "active",
  "publisher": "VitalHub",
  "description": "Extension to capture uploaded document metadata, contents reference, and GUID for linking documents to other records.",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Consent"
    },
    {
      "type": "element",
      "expression": "DocumentReference"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "snapshot": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Document",
        "definition": "Complex extension capturing document metadata, contents, and GUID.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.id",
        "path": "Extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "string"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a URL.",
        "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "uri"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Value of extension",
        "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list).",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "base64Binary"
          },
          {
            "code": "boolean"
          },
          {
            "code": "canonical"
          },
          {
            "code": "code"
          },
          {
            "code": "date"
          },
          {
            "code": "dateTime"
          },
          {
            "code": "decimal"
          },
          {
            "code": "id"
          },
          {
            "code": "instant"
          },
          {
            "code": "integer"
          },
          {
            "code": "markdown"
          },
          {
            "code": "oid"
          },
          {
            "code": "positiveInt"
          },
          {
            "code": "string"
          },
          {
            "code": "time"
          },
          {
            "code": "unsignedInt"
          },
          {
            "code": "uri"
          },
          {
            "code": "url"
          },
          {
            "code": "uuid"
          },
          {
            "code": "Address"
          },
          {
            "code": "Age"
          },
          {
            "code": "Annotation"
          },
          {
            "code": "Attachment"
          },
          {
            "code": "CodeableConcept"
          },
          {
            "code": "Coding"
          },
          {
            "code": "ContactPoint"
          },
          {
            "code": "Count"
          },
          {
            "code": "Distance"
          },
          {
            "code": "Duration"
          },
          {
            "code": "HumanName"
          },
          {
            "code": "Identifier"
          },
          {
            "code": "Money"
          },
          {
            "code": "Period"
          },
          {
            "code": "Quantity"
          },
          {
            "code": "Range"
          },
          {
            "code": "Ratio"
          },
          {
            "code": "Reference"
          },
          {
            "code": "SampledData"
          },
          {
            "code": "Signature"
          },
          {
            "code": "Timing"
          },
          {
            "code": "ContactDetail"
          },
          {
            "code": "Contributor"
          },
          {
            "code": "DataRequirement"
          },
          {
            "code": "Expression"
          },
          {
            "code": "ParameterDefinition"
          },
          {
            "code": "RelatedArtifact"
          },
          {
            "code": "TriggerDefinition"
          },
          {
            "code": "UsageContext"
          },
          {
            "code": "Dosage"
          },
          {
            "code": "Meta"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          },
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:title",
        "path": "Extension.extension",
        "sliceName": "title",
        "short": "Document title",
        "definition": "The name of the document.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Extension.extension:creation",
        "path": "Extension.extension",
        "sliceName": "creation",
        "short": "Document creation date/time",
        "definition": "The date and time the document was created.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Extension.extension:documentContents",
        "path": "Extension.extension",
        "sliceName": "documentContents",
        "short": "Document contents",
        "definition": "Reference to the Binary resource holding the document contents.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Extension.extension:documentGUID",
        "path": "Extension.extension",
        "sliceName": "documentGUID",
        "short": "Document GUID",
        "definition": "GUID linking the document to other extensions or records.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Extension.extension:contenttype",
        "path": "Extension.extension",
        "sliceName": "contenttype",
        "short": "Document MIME type",
        "definition": "The MIME type of the document.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Extension.extension:description",
        "path": "Extension.extension",
        "sliceName": "description",
        "short": "Document description",
        "definition": "Description of the document.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Extension.extension:organization",
        "path": "Extension.extension",
        "sliceName": "organization",
        "short": "Issuing organization",
        "definition": "Organization associated with the document, selected from the Organizations ValueSet.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "1"
        }
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Document",
        "definition": "Complex extension capturing document metadata, contents, and GUID."
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document"
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "min": 0,
        "max": "*"
      },
      {
        "id": "Extension.extension:title",
        "path": "Extension.extension",
        "sliceName": "title",
        "short": "Document title",
        "definition": "The name of the document.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:title.url",
        "path": "Extension.extension.url",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document#title"
      },
      {
        "id": "Extension.extension:title.valueString",
        "path": "Extension.extension.valueString",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:creation",
        "path": "Extension.extension",
        "sliceName": "creation",
        "short": "Document creation date/time",
        "definition": "The date and time the document was created.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:creation.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document#creation"
      },
      {
        "id": "Extension.extension:creation.valueDateTime",
        "path": "Extension.extension.valueDateTime",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "Extension.extension:documentContents",
        "path": "Extension.extension",
        "sliceName": "documentContents",
        "short": "Document contents",
        "definition": "Reference to the Binary resource holding the document contents.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:documentContents.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document#documentContents"
      },
      {
        "id": "Extension.extension:documentContents.valueReference",
        "path": "Extension.extension.valueReference",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Reference",
            "profile": [
              "http://hl7.org/fhir/StructureDefinition/Binary"
            ]
          }
        ]
      },
      {
        "id": "Extension.extension:documentGUID",
        "path": "Extension.extension",
        "sliceName": "documentGUID",
        "short": "Document GUID",
        "definition": "GUID linking the document to other extensions or records.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:documentGUID.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document#documentGUID"
      },
      {
        "id": "Extension.extension:documentGUID.valueUri",
        "path": "Extension.extension.valueUri",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "uri"
          }
        ]
      },
      {
        "id": "Extension.extension:contenttype",
        "path": "Extension.extension",
        "sliceName": "contenttype",
        "short": "Document MIME type",
        "definition": "The MIME type of the document.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:contenttype.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document#contenttype"
      },
      {
        "id": "Extension.extension:contenttype.valueCode",
        "path": "Extension.extension.valueCode",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "code"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "http://hl7.org/fhir/ValueSet/mimetypes"
        }
      },
      {
        "id": "Extension.extension:description",
        "path": "Extension.extension",
        "sliceName": "description",
        "short": "Document description",
        "definition": "Description of the document.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:description.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-Document#description"
      },
      {
        "id": "Extension.extension:description.valueString",
        "path": "Extension.extension.valueString",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:organization",
        "path": "Extension.extension",
        "sliceName": "organization",
        "short": "Issuing organization",
        "definition": "Organization associated with the document, selected from the Organizations ValueSet.",
        "min": 0,
        "max": "1"
      },
      {
        "id": "Extension.extension:organization.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "fixedUri": "https://vitalhub.com/fhir/StructureDefinition/ext-organization"
      },
      {
        "id": "Extension.extension:organization.valueCodeableConcept",
        "path": "Extension.extension.valueCodeableConcept",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "https://vitalhub.com/fhir/ValueSet/vs-Organizations"
        }
      }
    ]
  }
}