{
  "resourceType": "StructureDefinition",
  "url": "http://fhir.synapxe.sg/StructureDefinition/profile-documentreference",
  "name": "DocumentReference",
  "status": "draft",
  "fhirVersion": "5.0.0",
  "kind": "resource",
  "abstract": false,
  "type": "DocumentReference",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/DocumentReference",
  "derivation": "constraint",
  "differential": {
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        "path": "DocumentReference.meta",
        "min": 1
      },
      {
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        "path": "DocumentReference.meta.versionId",
        "max": "0"
      },
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        "path": "DocumentReference.meta.lastUpdated",
        "max": "0"
      },
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        "path": "DocumentReference.meta.source",
        "min": 1
      },
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        "path": "DocumentReference.meta.profile",
        "max": "0"
      },
      {
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        "path": "DocumentReference.meta.security",
        "max": "0"
      },
      {
        "id": "DocumentReference.meta.tag",
        "path": "DocumentReference.meta.tag",
        "max": "0"
      },
      {
        "id": "DocumentReference.implicitRules",
        "path": "DocumentReference.implicitRules",
        "max": "0"
      },
      {
        "id": "DocumentReference.language",
        "path": "DocumentReference.language",
        "max": "0"
      },
      {
        "id": "DocumentReference.text",
        "path": "DocumentReference.text",
        "max": "0"
      },
      {
        "id": "DocumentReference.contained",
        "path": "DocumentReference.contained",
        "max": "0"
      },
      {
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        "path": "DocumentReference.identifier",
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        "max": "1"
      },
      {
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        "path": "DocumentReference.identifier.use",
        "max": "0"
      },
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        "path": "DocumentReference.identifier.type",
        "max": "0"
      },
      {
        "id": "DocumentReference.identifier.system",
        "path": "DocumentReference.identifier.system",
        "min": 1,
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      },
      {
        "id": "DocumentReference.identifier.value",
        "path": "DocumentReference.identifier.value",
        "min": 1,
        "fixedString": "guid"
      },
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        "path": "DocumentReference.identifier.period",
        "max": "0"
      },
      {
        "id": "DocumentReference.identifier.assigner",
        "path": "DocumentReference.identifier.assigner",
        "max": "0"
      },
      {
        "id": "DocumentReference.version",
        "path": "DocumentReference.version",
        "max": "0"
      },
      {
        "id": "DocumentReference.basedOn",
        "path": "DocumentReference.basedOn",
        "max": "0"
      },
      {
        "id": "DocumentReference.status",
        "path": "DocumentReference.status",
        "fixedCode": "current"
      },
      {
        "id": "DocumentReference.docStatus",
        "path": "DocumentReference.docStatus",
        "min": 1,
        "fixedCode": "final"
      },
      {
        "id": "DocumentReference.modality",
        "path": "DocumentReference.modality",
        "max": "0"
      },
      {
        "id": "DocumentReference.type",
        "path": "DocumentReference.type",
        "min": 1
      },
      {
        "id": "DocumentReference.type.coding",
        "path": "DocumentReference.type.coding",
        "min": 1,
        "max": "1"
      },
      {
        "id": "DocumentReference.type.coding.system",
        "path": "DocumentReference.type.coding.system",
        "min": 1,
        "fixedUri": "http://ihis.sg/ValueSet/document-type"
      },
      {
        "id": "DocumentReference.type.coding.version",
        "path": "DocumentReference.type.coding.version",
        "max": "0"
      },
      {
        "id": "DocumentReference.type.coding.code",
        "path": "DocumentReference.type.coding.code",
        "min": 1,
        "fixedCode": "ccda"
      },
      {
        "id": "DocumentReference.type.coding.display",
        "path": "DocumentReference.type.coding.display",
        "max": "0"
      },
      {
        "id": "DocumentReference.type.coding.userSelected",
        "path": "DocumentReference.type.coding.userSelected",
        "max": "0"
      },
      {
        "id": "DocumentReference.type.text",
        "path": "DocumentReference.type.text",
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      },
      {
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        "path": "DocumentReference.category",
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        "max": "1"
      },
      {
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        "path": "DocumentReference.category.coding",
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        "max": "1"
      },
      {
        "id": "DocumentReference.category.coding.system",
        "path": "DocumentReference.category.coding.system",
        "min": 1,
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      },
      {
        "id": "DocumentReference.category.coding.version",
        "path": "DocumentReference.category.coding.version",
        "max": "0"
      },
      {
        "id": "DocumentReference.category.coding.code",
        "path": "DocumentReference.category.coding.code",
        "min": 1,
        "binding": {
          "strength": "required",
          "valueSet": "http://ihis.sg/ValueSet/ccda-data-group"
        }
      },
      {
        "id": "DocumentReference.category.coding.display",
        "path": "DocumentReference.category.coding.display",
        "max": "0"
      },
      {
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        "path": "DocumentReference.category.coding.userSelected",
        "max": "0"
      },
      {
        "id": "DocumentReference.category.text",
        "path": "DocumentReference.category.text",
        "max": "0"
      },
      {
        "id": "DocumentReference.subject",
        "path": "DocumentReference.subject",
        "min": 1
      },
      {
        "id": "DocumentReference.subject.type",
        "path": "DocumentReference.subject.type",
        "fixedUri": "Patient"
      },
      {
        "id": "DocumentReference.subject.identifier",
        "path": "DocumentReference.subject.identifier",
        "min": 1
      },
      {
        "id": "DocumentReference.subject.identifier.use",
        "path": "DocumentReference.subject.identifier.use",
        "max": "0"
      },
      {
        "id": "DocumentReference.subject.identifier.type",
        "path": "DocumentReference.subject.identifier.type",
        "max": "0"
      },
      {
        "id": "DocumentReference.subject.identifier.system",
        "path": "DocumentReference.subject.identifier.system",
        "min": 1,
        "fixedUri": "http://ihis.sg/identifier/encrypted-nric"
      },
      {
        "id": "DocumentReference.subject.identifier.value",
        "path": "DocumentReference.subject.identifier.value",
        "min": 1,
        "fixedString": "U2FsdGVkX1-eXowTVO3diSIV_xq8kIME4BxcsYYrh-s="
      },
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        "path": "DocumentReference.subject.identifier.period",
        "max": "0"
      },
      {
        "id": "DocumentReference.subject.identifier.assigner",
        "path": "DocumentReference.subject.identifier.assigner",
        "max": "0"
      },
      {
        "id": "DocumentReference.subject.display",
        "path": "DocumentReference.subject.display",
        "max": "0"
      },
      {
        "id": "DocumentReference.context",
        "path": "DocumentReference.context",
        "max": "0"
      },
      {
        "id": "DocumentReference.event",
        "path": "DocumentReference.event",
        "max": "0"
      },
      {
        "id": "DocumentReference.bodySite",
        "path": "DocumentReference.bodySite",
        "max": "0"
      },
      {
        "id": "DocumentReference.facilityType",
        "path": "DocumentReference.facilityType",
        "max": "0"
      },
      {
        "id": "DocumentReference.practiceSetting",
        "path": "DocumentReference.practiceSetting",
        "max": "0"
      },
      {
        "id": "DocumentReference.period",
        "path": "DocumentReference.period",
        "max": "0"
      },
      {
        "id": "DocumentReference.date",
        "path": "DocumentReference.date",
        "min": 1
      },
      {
        "id": "DocumentReference.author",
        "path": "DocumentReference.author",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://hl7.org/fhir/StructureDefinition/Organization"
            ]
          }
        ]
      },
      {
        "id": "DocumentReference.author.type",
        "path": "DocumentReference.author.type",
        "min": 1,
        "fixedUri": "Organization"
      },
      {
        "id": "DocumentReference.author.identifier",
        "path": "DocumentReference.author.identifier",
        "min": 1
      },
      {
        "id": "DocumentReference.author.identifier.use",
        "path": "DocumentReference.author.identifier.use",
        "max": "0"
      },
      {
        "id": "DocumentReference.author.identifier.type",
        "path": "DocumentReference.author.identifier.type",
        "max": "0"
      },
      {
        "id": "DocumentReference.author.identifier.system",
        "path": "DocumentReference.author.identifier.system",
        "min": 1,
        "fixedUri": "http://ihis.sg/identifier/institution-code"
      },
      {
        "id": "DocumentReference.author.identifier.value",
        "path": "DocumentReference.author.identifier.value",
        "short": "institution short code",
        "definition": "institution short code",
        "min": 1
      },
      {
        "id": "DocumentReference.author.identifier.period",
        "path": "DocumentReference.author.identifier.period",
        "max": "0"
      },
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        "path": "DocumentReference.author.identifier.assigner",
        "max": "0"
      },
      {
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        "path": "DocumentReference.author.display",
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      },
      {
        "id": "DocumentReference.attester",
        "path": "DocumentReference.attester",
        "max": "0"
      },
      {
        "id": "DocumentReference.custodian",
        "path": "DocumentReference.custodian",
        "max": "0"
      },
      {
        "id": "DocumentReference.relatesTo",
        "path": "DocumentReference.relatesTo",
        "max": "0"
      },
      {
        "id": "DocumentReference.description",
        "path": "DocumentReference.description",
        "max": "0"
      },
      {
        "id": "DocumentReference.securityLabel",
        "path": "DocumentReference.securityLabel",
        "max": "0"
      },
      {
        "id": "DocumentReference.content.attachment.contentType",
        "path": "DocumentReference.content.attachment.contentType",
        "min": 1
      },
      {
        "id": "DocumentReference.content.attachment.language",
        "path": "DocumentReference.content.attachment.language",
        "max": "0"
      },
      {
        "id": "DocumentReference.content.attachment.data",
        "path": "DocumentReference.content.attachment.data",
        "max": "0"
      },
      {
        "id": "DocumentReference.content.attachment.url",
        "path": "DocumentReference.content.attachment.url",
        "min": 1
      },
      {
        "id": "DocumentReference.content.attachment.size",
        "path": "DocumentReference.content.attachment.size",
        "max": "0"
      },
      {
        "id": "DocumentReference.content.attachment.hash",
        "path": "DocumentReference.content.attachment.hash",
        "max": "0"
      },
      {
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        "path": "DocumentReference.content.attachment.title",
        "max": "0"
      },
      {
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        "path": "DocumentReference.content.attachment.creation",
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      },
      {
        "id": "DocumentReference.content.attachment.height",
        "path": "DocumentReference.content.attachment.height",
        "max": "0"
      },
      {
        "id": "DocumentReference.content.attachment.width",
        "path": "DocumentReference.content.attachment.width",
        "max": "0"
      },
      {
        "id": "DocumentReference.content.attachment.frames",
        "path": "DocumentReference.content.attachment.frames",
        "max": "0"
      },
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        "id": "DocumentReference.content.attachment.duration",
        "path": "DocumentReference.content.attachment.duration",
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      },
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        "id": "DocumentReference.content.attachment.pages",
        "path": "DocumentReference.content.attachment.pages",
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      },
      {
        "id": "DocumentReference.content.profile",
        "path": "DocumentReference.content.profile",
        "max": "0"
      }
    ]
  }
}