PackagesCanonicalsLogsProblems
    Packages
    who.ddcc@1.0.1
    http://smart.who.int/ddcc/StructureDefinition/CertICAO
{
  "description": "Data elements for the ICAO Visible Digital Seal Core Data Set. Based on  as of 2023-02-02.",
  "_filename": "StructureDefinition-CertICAO.json",
  "package_name": "who.ddcc",
  "date": "2024-12-18T16:40:01+01:00",
  "derivation": "specialization",
  "publisher": "WHO",
  "fhirVersion": "4.0.1",
  "jurisdiction": [ {
    "coding": [ {
      "code": "001",
      "system": "http://unstats.un.org/unsd/methods/m49/m49.htm"
    } ]
  } ],
  "name": "CertICAO",
  "abstract": true,
  "type": "http://smart.who.int/ddcc/StructureDefinition/CertICAO",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": "Certificate - ICAO Visible Digital Seal Logical Model",
  "package_version": "1.0.1",
  "snapshot": {
    "element": [ {
      "id": "CertICAO",
      "max": "*",
      "min": 0,
      "base": {
        "max": "*",
        "min": 0,
        "path": "Base"
      },
      "path": "CertICAO",
      "short": "Certificate - ICAO Visible Digital Seal Logical Model",
      "definition": "Data elements for the ICAO Visible Digital Seal Core Data Set. Based on  as of 2023-02-02.",
      "isModifier": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data",
      "min": 1,
      "definition": "Data",
      "short": "Data",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data"
      }
    }, {
      "path": "CertICAO.data.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.hdr",
      "min": 1,
      "definition": "Header",
      "short": "Header",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data.hdr",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.hdr"
      }
    }, {
      "path": "CertICAO.data.hdr.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.hdr.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.hdr.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.hdr.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.hdr.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.hdr.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "id": "CertICAO.data.hdr.t",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.hdr.t"
      },
      "path": "CertICAO.data.hdr.t",
      "type": [ {
        "code": "string"
      } ],
      "short": "Type (either `icao.test` for proof of testing, or `icao.vacc` for proof of vaccination)",
      "definition": "Type (either `icao.test` for proof of testing, or `icao.vacc` for proof of vaccination)"
    }, {
      "id": "CertICAO.data.hdr.v",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.hdr.v"
      },
      "path": "CertICAO.data.hdr.v",
      "type": [ {
        "code": "integer"
      } ],
      "short": "Version",
      "definition": "Version"
    }, {
      "path": "CertICAO.data.hdr.is",
      "min": 1,
      "definition": "The three letter code is according to Doc 9303-3, which defines this as ISO-3166 country codes.",
      "short": "IssuingCountry (ISO-3166 three letter code; see element details)",
      "type": [ {
        "code": "string"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/iso3166-1-3"
      },
      "max": "1",
      "id": "CertICAO.data.hdr.is",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.hdr.is"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg",
      "min": 1,
      "definition": "Message",
      "short": "Message",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data.msg",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg"
      }
    }, {
      "path": "CertICAO.data.msg.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg.pid",
      "min": 1,
      "definition": "PersonalInformation (more info in element description)",
      "short": "PersonalInformation (more info in element description)",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data.msg.pid",
      "comment": "`pid.n`, `pid.dob`, `pid.dt`, and `pid.dn` are required for the `icao.test` type.\n\n`pid.n` and either `pid.i` or `pid.dob` are required for the `icao.vacc` type.\n\nCardinalities in the logical model for these elements are set to `0..1` to accommodate the different schemas for the two different credential types.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.pid"
      }
    }, {
      "path": "CertICAO.data.msg.pid.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.pid.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.pid.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.pid.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.pid.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.pid.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "id": "CertICAO.data.msg.pid.n",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.pid.n"
      },
      "path": "CertICAO.data.msg.pid.n",
      "type": [ {
        "code": "string"
      } ],
      "short": "Name (Name of the holder (as specified in Doc 9303-3) MUST be used.)",
      "definition": "Name (Name of the holder (as specified in Doc 9303-3) MUST be used.)"
    }, {
      "id": "CertICAO.data.msg.pid.dob",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.pid.dob"
      },
      "path": "CertICAO.data.msg.pid.dob",
      "type": [ {
        "code": "date"
      } ],
      "short": "Date of Birth (The DOB of the test subject. The [RFC 3339] full date format YYYY-MM- DD MUST be used.)",
      "definition": "Date of Birth (The DOB of the test subject. The [RFC 3339] full date format YYYY-MM- DD MUST be used.)"
    }, {
      "id": "CertICAO.data.msg.pid.dt",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.pid.dt"
      },
      "path": "CertICAO.data.msg.pid.dt",
      "type": [ {
        "code": "string"
      } ],
      "short": "ID Document Type of the identity document (see element details)",
      "definition": "The ID Document Type of the identity document MUST be used. Only these values MUST be used:\n\n- `P` – Passport (Doc 9303-4)\n- `A` – ID Card (Doc 9303-5)\n- `C` – ID Card (Doc 9303-5)\n- `I` – ID Card Doc 9303-5)\n- `AC` - Crew Member Certificate (Doc 9303-5)\n- `V` – Visa (Doc 9303-7)\n- `D` – Driving License (ISO 18013-1)"
    }, {
      "id": "CertICAO.data.msg.pid.dn",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.pid.dn"
      },
      "path": "CertICAO.data.msg.pid.dn",
      "type": [ {
        "code": "string"
      } ],
      "short": "ID Document Number of the identity document",
      "definition": "ID Document Number of the identity document"
    }, {
      "id": "CertICAO.data.msg.pid.i",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.pid.i"
      },
      "path": "CertICAO.data.msg.pid.i",
      "type": [ {
        "code": "string"
      } ],
      "short": "Travel Document Number",
      "definition": "Travel Document Number"
    }, {
      "id": "CertICAO.data.msg.pid.ai",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.pid.ai"
      },
      "path": "CertICAO.data.msg.pid.ai",
      "type": [ {
        "code": "string"
      } ],
      "short": "Other Document Number",
      "definition": "Other Document Number"
    }, {
      "id": "CertICAO.data.msg.pid.sex",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.pid.sex"
      },
      "path": "CertICAO.data.msg.pid.sex",
      "type": [ {
        "code": "string"
      } ],
      "short": "Sex of the test subject (as specified in Doc 9303-4 Section 4.1.1.1 – Visual Inspection Zone)",
      "definition": "Sex of the test subject (as specified in Doc 9303-4 Section 4.1.1.1 – Visual Inspection Zone)"
    }, {
      "id": "CertICAO.data.msg.utci",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.utci"
      },
      "path": "CertICAO.data.msg.utci",
      "type": [ {
        "code": "string"
      } ],
      "short": "UTCI (Unique Test Certificate Identifier; used for `icao.test` only, not used of `icao.vacc`)",
      "definition": "UTCI (Unique Test Certificate Identifier; used for `icao.test` only, not used of `icao.vacc`)"
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg.sp",
      "min": 0,
      "definition": "ServiceProvider (Required for `icao.test` only, not used of `icao.vacc`)",
      "short": "ServiceProvider (Required for `icao.test` only, not used of `icao.vacc`)",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data.msg.sp",
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.sp"
      }
    }, {
      "path": "CertICAO.data.msg.sp.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.sp.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.sp.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.sp.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.sp.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.sp.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "id": "CertICAO.data.msg.sp.spn",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.sp.spn"
      },
      "path": "CertICAO.data.msg.sp.spn",
      "type": [ {
        "code": "string"
      } ],
      "short": "Name of testing facility or service provider",
      "definition": "Name of testing facility or service provider"
    }, {
      "id": "CertICAO.data.msg.sp.ctr",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.sp.ctr"
      },
      "path": "CertICAO.data.msg.sp.ctr",
      "type": [ {
        "code": "string"
      } ],
      "short": "Country of test (spec does not indicate code system, but presumably this is ISO-3166 like the other country codes in the certificate)",
      "definition": "Country of test (spec does not indicate code system, but presumably this is ISO-3166 like the other country codes in the certificate)"
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg.sp.cd",
      "min": 1,
      "definition": "ContactDetails",
      "short": "ContactDetails",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data.msg.sp.cd",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.sp.cd"
      }
    }, {
      "path": "CertICAO.data.msg.sp.cd.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.sp.cd.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.sp.cd.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.sp.cd.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.sp.cd.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.sp.cd.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "id": "CertICAO.data.msg.sp.cd.p",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.sp.cd.p"
      },
      "path": "CertICAO.data.msg.sp.cd.p",
      "type": [ {
        "code": "string"
      } ],
      "short": "PhoneNumber",
      "definition": "PhoneNumber"
    }, {
      "id": "CertICAO.data.msg.sp.cd.e",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.sp.cd.e"
      },
      "path": "CertICAO.data.msg.sp.cd.e",
      "type": [ {
        "code": "string"
      } ],
      "short": "Email",
      "definition": "Email"
    }, {
      "id": "CertICAO.data.msg.sp.cd.a",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.sp.cd.a"
      },
      "path": "CertICAO.data.msg.sp.cd.a",
      "type": [ {
        "code": "string"
      } ],
      "short": "Address",
      "definition": "Address"
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg.dat",
      "min": 0,
      "definition": "DateTimeTestReport (Required for `icao.test` only, not used of `icao.vacc`)",
      "short": "DateTimeTestReport (Required for `icao.test` only, not used of `icao.vacc`)",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data.msg.dat",
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.dat"
      }
    }, {
      "path": "CertICAO.data.msg.dat.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.dat.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.dat.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.dat.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.dat.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.dat.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "id": "CertICAO.data.msg.dat.sc",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.dat.sc"
      },
      "path": "CertICAO.data.msg.dat.sc",
      "type": [ {
        "code": "dateTime"
      } ],
      "short": "SpecimenCollection (RFC3339)",
      "definition": "SpecimenCollection (RFC3339)"
    }, {
      "id": "CertICAO.data.msg.dat.ri",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.dat.ri"
      },
      "path": "CertICAO.data.msg.dat.ri",
      "type": [ {
        "code": "dateTime"
      } ],
      "short": "ReportIssuance (RFC3339)",
      "definition": "ReportIssuance (RFC3339)"
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg.tr",
      "min": 0,
      "definition": "TestResult (Required for `icao.test` only, not used of `icao.vacc`)",
      "short": "TestResult (Required for `icao.test` only, not used of `icao.vacc`)",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.data.msg.tr",
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.tr"
      }
    }, {
      "path": "CertICAO.data.msg.tr.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.tr.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.tr.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.tr.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.tr.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.tr.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "path": "CertICAO.data.msg.tr.tc",
      "min": 1,
      "definition": "TestConducted",
      "short": "TestConducted",
      "type": [ {
        "code": "string"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/LabTestTypeIcaoValueSet"
      },
      "max": "1",
      "id": "CertICAO.data.msg.tr.tc",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.tr.tc"
      }
    }, {
      "path": "CertICAO.data.msg.tr.r",
      "min": 1,
      "definition": "Results",
      "short": "Results",
      "type": [ {
        "code": "string"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/LabTestResultIcaoValueSet"
      },
      "max": "1",
      "id": "CertICAO.data.msg.tr.r",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.tr.r"
      }
    }, {
      "path": "CertICAO.data.msg.tr.m",
      "min": 0,
      "definition": "Sampling method",
      "short": "Sampling method",
      "type": [ {
        "code": "string"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/lab-test-sample-origin-icao"
      },
      "max": "1",
      "id": "CertICAO.data.msg.tr.m",
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.tr.m"
      }
    }, {
      "id": "CertICAO.data.msg.opt",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.opt"
      },
      "path": "CertICAO.data.msg.opt",
      "type": [ {
        "code": "string"
      } ],
      "short": "Optional data issued at the discretion of the issuing authority",
      "definition": "Optional data issued at the discretion of the issuing authority"
    }, {
      "id": "CertICAO.data.msg.uvci",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.uvci"
      },
      "path": "CertICAO.data.msg.uvci",
      "type": [ {
        "code": "string"
      } ],
      "short": "Unique Vaccination Certificate Identifier (Required for `icao.vacc` only, not used of `icao.test`)",
      "definition": "Unique Vaccination Certificate Identifier (Required for `icao.vacc` only, not used of `icao.test`)"
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg.ve",
      "min": 0,
      "definition": "VaccinationEvent (Required for `icao.vacc` only, not used of `icao.test`)",
      "short": "VaccinationEvent (Required for `icao.vacc` only, not used of `icao.test`)",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "*",
      "id": "CertICAO.data.msg.ve",
      "base": {
        "max": "*",
        "min": 0,
        "path": "CertICAO.data.msg.ve"
      }
    }, {
      "path": "CertICAO.data.msg.ve.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.ve.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.ve.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.ve.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.ve.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.ve.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "path": "CertICAO.data.msg.ve.des",
      "min": 1,
      "definition": "Vaccine or Prophylaxis (ICD-11 MMS code descending from http://id.who.int/icd/entity/164949870)",
      "short": "Vaccine or Prophylaxis (ICD-11 MMS code descending from http://id.who.int/icd/entity/164949870)",
      "type": [ {
        "code": "string"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/WHODDCCVaccinesCOVID19"
      },
      "max": "1",
      "id": "CertICAO.data.msg.ve.des",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.ve.des"
      }
    }, {
      "id": "CertICAO.data.msg.ve.nam",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.ve.nam"
      },
      "path": "CertICAO.data.msg.ve.nam",
      "type": [ {
        "code": "string"
      } ],
      "short": "Vaccine Brand (medical product name)",
      "definition": "Vaccine Brand (medical product name)"
    }, {
      "id": "CertICAO.data.msg.ve.dis",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.ve.dis"
      },
      "path": "CertICAO.data.msg.ve.dis",
      "type": [ {
        "code": "string"
      } ],
      "short": "Disease or agent targeted (ICD-11 code)",
      "definition": "Disease or agent targeted (ICD-11 code)"
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.data.msg.ve.vd",
      "min": 1,
      "definition": "VaccinationDetails",
      "short": "VaccinationDetails",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "*",
      "id": "CertICAO.data.msg.ve.vd",
      "base": {
        "max": "*",
        "min": 1,
        "path": "CertICAO.data.msg.ve.vd"
      }
    }, {
      "path": "CertICAO.data.msg.ve.vd.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.data.msg.ve.vd.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.ve.vd.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.data.msg.ve.vd.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.data.msg.ve.vd.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.data.msg.ve.vd.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "id": "CertICAO.data.msg.ve.vd.dvc",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.ve.vd.dvc"
      },
      "path": "CertICAO.data.msg.ve.vd.dvc",
      "type": [ {
        "code": "date"
      } ],
      "short": "Date of vaccination (see element details)",
      "definition": "Date on which the vaccine was administered. The ISO8601 full date format YYYY-MM-DD MUST be used."
    }, {
      "id": "CertICAO.data.msg.ve.vd.seq",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.ve.vd.seq"
      },
      "path": "CertICAO.data.msg.ve.vd.seq",
      "type": [ {
        "code": "positiveInt"
      } ],
      "short": "Dose number (vaccine dose number, integer between 1 and 99)",
      "definition": "Dose number (vaccine dose number, integer between 1 and 99)"
    }, {
      "path": "CertICAO.data.msg.ve.vd.ctr",
      "min": 1,
      "definition": "The country in which the individual has been vaccinated. A three letter code identifying the issuing state or organization. The three letter code is according to Doc 9303-3, which defines this as ISO-3166 country codes.",
      "short": "Country of vaccination (ISO-3166 three letter code; see element details)",
      "type": [ {
        "code": "string"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/iso3166-1-3"
      },
      "max": "1",
      "id": "CertICAO.data.msg.ve.vd.ctr",
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.ve.vd.ctr"
      }
    }, {
      "id": "CertICAO.data.msg.ve.vd.adm",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.ve.vd.adm"
      },
      "path": "CertICAO.data.msg.ve.vd.adm",
      "type": [ {
        "code": "string"
      } ],
      "short": "Administering centre (The name or identifier of the vaccination facility)",
      "definition": "Administering centre (The name or identifier of the vaccination facility)"
    }, {
      "id": "CertICAO.data.msg.ve.vd.lot",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.data.msg.ve.vd.lot"
      },
      "path": "CertICAO.data.msg.ve.vd.lot",
      "type": [ {
        "code": "string"
      } ],
      "short": "Vaccine batch number",
      "definition": "Vaccine batch number"
    }, {
      "id": "CertICAO.data.msg.ve.vd.dvn",
      "max": "1",
      "min": 0,
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.data.msg.ve.vd.dvn"
      },
      "path": "CertICAO.data.msg.ve.vd.dvn",
      "type": [ {
        "code": "date"
      } ],
      "short": "Due date of next dose (see element details)",
      "definition": "Date on which the next 10 vaccination should be administered. The ISO8601 full date format YYYY-MM-DD MUST be used."
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "CertICAO.sig",
      "min": 0,
      "definition": "Signature",
      "short": "Signature",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "max": "1",
      "id": "CertICAO.sig",
      "base": {
        "max": "1",
        "min": 0,
        "path": "CertICAO.sig"
      }
    }, {
      "path": "CertICAO.sig.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "isModifier": false,
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "CertICAO.sig.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.sig.extension",
      "min": 0,
      "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.",
      "isModifier": false,
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "CertICAO.sig.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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      },
      "isSummary": false
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "CertICAO.sig.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R4/extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "CertICAO.sig.modifierExtension",
      "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.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "id": "CertICAO.sig.alg",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.sig.alg"
      },
      "path": "CertICAO.sig.alg",
      "type": [ {
        "code": "string"
      } ],
      "short": "SignatureAlgo",
      "definition": "SignatureAlgo"
    }, {
      "id": "CertICAO.sig.cer",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.sig.cer"
      },
      "path": "CertICAO.sig.cer",
      "type": [ {
        "code": "string"
      } ],
      "short": "Certificate (X.509 signer certificate in base64url [RFC 4648])",
      "definition": "Certificate (X.509 signer certificate in base64url [RFC 4648])"
    }, {
      "id": "CertICAO.sig.sigvl",
      "max": "1",
      "min": 1,
      "base": {
        "max": "1",
        "min": 1,
        "path": "CertICAO.sig.sigvl"
      },
      "path": "CertICAO.sig.sigvl",
      "type": [ {
        "code": "string"
      } ],
      "short": "SignatureValue (Signature value signed over the Data in base64url [RFC 4648])",
      "definition": "SignatureValue (Signature value signed over the Data in base64url [RFC 4648])"
    } ]
  },
  "status": "draft",
  "id": "232db4da-1830-468b-892b-a0c92886aea4",
  "kind": "logical",
  "url": "http://smart.who.int/ddcc/StructureDefinition/CertICAO",
  "version": "1.0.1",
  "differential": {
    "element": [ {
      "id": "CertICAO",
      "path": "CertICAO",
      "short": "Certificate - ICAO Visible Digital Seal Logical Model",
      "definition": "Data elements for the ICAO Visible Digital Seal Core Data Set. Based on  as of 2023-02-02."
    }, {
      "id": "CertICAO.data",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "Data",
      "definition": "Data"
    }, {
      "id": "CertICAO.data.hdr",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.hdr",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "Header",
      "definition": "Header"
    }, {
      "id": "CertICAO.data.hdr.t",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.hdr.t",
      "type": [ {
        "code": "string"
      } ],
      "short": "Type (either `icao.test` for proof of testing, or `icao.vacc` for proof of vaccination)",
      "definition": "Type (either `icao.test` for proof of testing, or `icao.vacc` for proof of vaccination)"
    }, {
      "id": "CertICAO.data.hdr.v",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.hdr.v",
      "type": [ {
        "code": "integer"
      } ],
      "short": "Version",
      "definition": "Version"
    }, {
      "id": "CertICAO.data.hdr.is",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.hdr.is",
      "type": [ {
        "code": "string"
      } ],
      "short": "IssuingCountry (ISO-3166 three letter code; see element details)",
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/iso3166-1-3"
      },
      "definition": "The three letter code is according to Doc 9303-3, which defines this as ISO-3166 country codes."
    }, {
      "id": "CertICAO.data.msg",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "Message",
      "definition": "Message"
    }, {
      "id": "CertICAO.data.msg.pid",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.pid",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "PersonalInformation (more info in element description)",
      "comment": "`pid.n`, `pid.dob`, `pid.dt`, and `pid.dn` are required for the `icao.test` type.\n\n`pid.n` and either `pid.i` or `pid.dob` are required for the `icao.vacc` type.\n\nCardinalities in the logical model for these elements are set to `0..1` to accommodate the different schemas for the two different credential types.",
      "definition": "PersonalInformation (more info in element description)"
    }, {
      "id": "CertICAO.data.msg.pid.n",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.pid.n",
      "type": [ {
        "code": "string"
      } ],
      "short": "Name (Name of the holder (as specified in Doc 9303-3) MUST be used.)",
      "definition": "Name (Name of the holder (as specified in Doc 9303-3) MUST be used.)"
    }, {
      "id": "CertICAO.data.msg.pid.dob",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.pid.dob",
      "type": [ {
        "code": "date"
      } ],
      "short": "Date of Birth (The DOB of the test subject. The [RFC 3339] full date format YYYY-MM- DD MUST be used.)",
      "definition": "Date of Birth (The DOB of the test subject. The [RFC 3339] full date format YYYY-MM- DD MUST be used.)"
    }, {
      "id": "CertICAO.data.msg.pid.dt",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.pid.dt",
      "type": [ {
        "code": "string"
      } ],
      "short": "ID Document Type of the identity document (see element details)",
      "definition": "The ID Document Type of the identity document MUST be used. Only these values MUST be used:\n\n- `P` – Passport (Doc 9303-4)\n- `A` – ID Card (Doc 9303-5)\n- `C` – ID Card (Doc 9303-5)\n- `I` – ID Card Doc 9303-5)\n- `AC` - Crew Member Certificate (Doc 9303-5)\n- `V` – Visa (Doc 9303-7)\n- `D` – Driving License (ISO 18013-1)"
    }, {
      "id": "CertICAO.data.msg.pid.dn",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.pid.dn",
      "type": [ {
        "code": "string"
      } ],
      "short": "ID Document Number of the identity document",
      "definition": "ID Document Number of the identity document"
    }, {
      "id": "CertICAO.data.msg.pid.i",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.pid.i",
      "type": [ {
        "code": "string"
      } ],
      "short": "Travel Document Number",
      "definition": "Travel Document Number"
    }, {
      "id": "CertICAO.data.msg.pid.ai",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.pid.ai",
      "type": [ {
        "code": "string"
      } ],
      "short": "Other Document Number",
      "definition": "Other Document Number"
    }, {
      "id": "CertICAO.data.msg.pid.sex",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.pid.sex",
      "type": [ {
        "code": "string"
      } ],
      "short": "Sex of the test subject (as specified in Doc 9303-4 Section 4.1.1.1 – Visual Inspection Zone)",
      "definition": "Sex of the test subject (as specified in Doc 9303-4 Section 4.1.1.1 – Visual Inspection Zone)"
    }, {
      "id": "CertICAO.data.msg.utci",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.utci",
      "type": [ {
        "code": "string"
      } ],
      "short": "UTCI (Unique Test Certificate Identifier; used for `icao.test` only, not used of `icao.vacc`)",
      "definition": "UTCI (Unique Test Certificate Identifier; used for `icao.test` only, not used of `icao.vacc`)"
    }, {
      "id": "CertICAO.data.msg.sp",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.sp",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "ServiceProvider (Required for `icao.test` only, not used of `icao.vacc`)",
      "definition": "ServiceProvider (Required for `icao.test` only, not used of `icao.vacc`)"
    }, {
      "id": "CertICAO.data.msg.sp.spn",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.sp.spn",
      "type": [ {
        "code": "string"
      } ],
      "short": "Name of testing facility or service provider",
      "definition": "Name of testing facility or service provider"
    }, {
      "id": "CertICAO.data.msg.sp.ctr",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.sp.ctr",
      "type": [ {
        "code": "string"
      } ],
      "short": "Country of test (spec does not indicate code system, but presumably this is ISO-3166 like the other country codes in the certificate)",
      "definition": "Country of test (spec does not indicate code system, but presumably this is ISO-3166 like the other country codes in the certificate)"
    }, {
      "id": "CertICAO.data.msg.sp.cd",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.sp.cd",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "ContactDetails",
      "definition": "ContactDetails"
    }, {
      "id": "CertICAO.data.msg.sp.cd.p",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.sp.cd.p",
      "type": [ {
        "code": "string"
      } ],
      "short": "PhoneNumber",
      "definition": "PhoneNumber"
    }, {
      "id": "CertICAO.data.msg.sp.cd.e",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.sp.cd.e",
      "type": [ {
        "code": "string"
      } ],
      "short": "Email",
      "definition": "Email"
    }, {
      "id": "CertICAO.data.msg.sp.cd.a",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.sp.cd.a",
      "type": [ {
        "code": "string"
      } ],
      "short": "Address",
      "definition": "Address"
    }, {
      "id": "CertICAO.data.msg.dat",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.dat",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "DateTimeTestReport (Required for `icao.test` only, not used of `icao.vacc`)",
      "definition": "DateTimeTestReport (Required for `icao.test` only, not used of `icao.vacc`)"
    }, {
      "id": "CertICAO.data.msg.dat.sc",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.dat.sc",
      "type": [ {
        "code": "dateTime"
      } ],
      "short": "SpecimenCollection (RFC3339)",
      "definition": "SpecimenCollection (RFC3339)"
    }, {
      "id": "CertICAO.data.msg.dat.ri",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.dat.ri",
      "type": [ {
        "code": "dateTime"
      } ],
      "short": "ReportIssuance (RFC3339)",
      "definition": "ReportIssuance (RFC3339)"
    }, {
      "id": "CertICAO.data.msg.tr",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.tr",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "TestResult (Required for `icao.test` only, not used of `icao.vacc`)",
      "definition": "TestResult (Required for `icao.test` only, not used of `icao.vacc`)"
    }, {
      "id": "CertICAO.data.msg.tr.tc",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.tr.tc",
      "type": [ {
        "code": "string"
      } ],
      "short": "TestConducted",
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/LabTestTypeIcaoValueSet"
      },
      "definition": "TestConducted"
    }, {
      "id": "CertICAO.data.msg.tr.r",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.tr.r",
      "type": [ {
        "code": "string"
      } ],
      "short": "Results",
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/LabTestResultIcaoValueSet"
      },
      "definition": "Results"
    }, {
      "id": "CertICAO.data.msg.tr.m",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.tr.m",
      "type": [ {
        "code": "string"
      } ],
      "short": "Sampling method",
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/lab-test-sample-origin-icao"
      },
      "definition": "Sampling method"
    }, {
      "id": "CertICAO.data.msg.opt",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.opt",
      "type": [ {
        "code": "string"
      } ],
      "short": "Optional data issued at the discretion of the issuing authority",
      "definition": "Optional data issued at the discretion of the issuing authority"
    }, {
      "id": "CertICAO.data.msg.uvci",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.uvci",
      "type": [ {
        "code": "string"
      } ],
      "short": "Unique Vaccination Certificate Identifier (Required for `icao.vacc` only, not used of `icao.test`)",
      "definition": "Unique Vaccination Certificate Identifier (Required for `icao.vacc` only, not used of `icao.test`)"
    }, {
      "id": "CertICAO.data.msg.ve",
      "max": "*",
      "min": 0,
      "path": "CertICAO.data.msg.ve",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "VaccinationEvent (Required for `icao.vacc` only, not used of `icao.test`)",
      "definition": "VaccinationEvent (Required for `icao.vacc` only, not used of `icao.test`)"
    }, {
      "id": "CertICAO.data.msg.ve.des",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.ve.des",
      "type": [ {
        "code": "string"
      } ],
      "short": "Vaccine or Prophylaxis (ICD-11 MMS code descending from http://id.who.int/icd/entity/164949870)",
      "binding": {
        "strength": "required",
        "valueSet": "http://smart.who.int/ddcc/ValueSet/WHODDCCVaccinesCOVID19"
      },
      "definition": "Vaccine or Prophylaxis (ICD-11 MMS code descending from http://id.who.int/icd/entity/164949870)"
    }, {
      "id": "CertICAO.data.msg.ve.nam",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.ve.nam",
      "type": [ {
        "code": "string"
      } ],
      "short": "Vaccine Brand (medical product name)",
      "definition": "Vaccine Brand (medical product name)"
    }, {
      "id": "CertICAO.data.msg.ve.dis",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.ve.dis",
      "type": [ {
        "code": "string"
      } ],
      "short": "Disease or agent targeted (ICD-11 code)",
      "definition": "Disease or agent targeted (ICD-11 code)"
    }, {
      "id": "CertICAO.data.msg.ve.vd",
      "max": "*",
      "min": 1,
      "path": "CertICAO.data.msg.ve.vd",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "VaccinationDetails",
      "definition": "VaccinationDetails"
    }, {
      "id": "CertICAO.data.msg.ve.vd.dvc",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.ve.vd.dvc",
      "type": [ {
        "code": "date"
      } ],
      "short": "Date of vaccination (see element details)",
      "definition": "Date on which the vaccine was administered. The ISO8601 full date format YYYY-MM-DD MUST be used."
    }, {
      "id": "CertICAO.data.msg.ve.vd.seq",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.ve.vd.seq",
      "type": [ {
        "code": "positiveInt"
      } ],
      "short": "Dose number (vaccine dose number, integer between 1 and 99)",
      "definition": "Dose number (vaccine dose number, integer between 1 and 99)"
    }, {
      "id": "CertICAO.data.msg.ve.vd.ctr",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.ve.vd.ctr",
      "type": [ {
        "code": "string"
      } ],
      "short": "Country of vaccination (ISO-3166 three letter code; see element details)",
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/iso3166-1-3"
      },
      "definition": "The country in which the individual has been vaccinated. A three letter code identifying the issuing state or organization. The three letter code is according to Doc 9303-3, which defines this as ISO-3166 country codes."
    }, {
      "id": "CertICAO.data.msg.ve.vd.adm",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.ve.vd.adm",
      "type": [ {
        "code": "string"
      } ],
      "short": "Administering centre (The name or identifier of the vaccination facility)",
      "definition": "Administering centre (The name or identifier of the vaccination facility)"
    }, {
      "id": "CertICAO.data.msg.ve.vd.lot",
      "max": "1",
      "min": 1,
      "path": "CertICAO.data.msg.ve.vd.lot",
      "type": [ {
        "code": "string"
      } ],
      "short": "Vaccine batch number",
      "definition": "Vaccine batch number"
    }, {
      "id": "CertICAO.data.msg.ve.vd.dvn",
      "max": "1",
      "min": 0,
      "path": "CertICAO.data.msg.ve.vd.dvn",
      "type": [ {
        "code": "date"
      } ],
      "short": "Due date of next dose (see element details)",
      "definition": "Date on which the next 10 vaccination should be administered. The ISO8601 full date format YYYY-MM-DD MUST be used."
    }, {
      "id": "CertICAO.sig",
      "max": "1",
      "min": 0,
      "path": "CertICAO.sig",
      "type": [ {
        "code": "BackboneElement"
      } ],
      "short": "Signature",
      "definition": "Signature"
    }, {
      "id": "CertICAO.sig.alg",
      "max": "1",
      "min": 1,
      "path": "CertICAO.sig.alg",
      "type": [ {
        "code": "string"
      } ],
      "short": "SignatureAlgo",
      "definition": "SignatureAlgo"
    }, {
      "id": "CertICAO.sig.cer",
      "max": "1",
      "min": 1,
      "path": "CertICAO.sig.cer",
      "type": [ {
        "code": "string"
      } ],
      "short": "Certificate (X.509 signer certificate in base64url [RFC 4648])",
      "definition": "Certificate (X.509 signer certificate in base64url [RFC 4648])"
    }, {
      "id": "CertICAO.sig.sigvl",
      "max": "1",
      "min": 1,
      "path": "CertICAO.sig.sigvl",
      "type": [ {
        "code": "string"
      } ],
      "short": "SignatureValue (Signature value signed over the Data in base64url [RFC 4648])",
      "definition": "SignatureValue (Signature value signed over the Data in base64url [RFC 4648])"
    } ]
  },
  "contact": [ {
    "name": "WHO",
    "telecom": [ {
      "value": "http://who.int",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Base"
}