Release 4B 5 Ballot

This page is part of the FHIR Specification (v4.3.0: R4B (v5.0.0-ballot: R5 Ballot - STU see ballot notes ). The current version which supercedes this version is 5.0.0 . For a full list of available versions, see the Directory of published versions . Page versions: R4B R4

Extension-observation-focuscode.ttl

Example StructureDefinition/observation-focusCode (Turtle)

Orders and Observations Work Group Maturity Level : N/A Standards Status : Informative

Raw Turtle (+ also see Turtle/RDF Format Specification )

focusCode 

@prefix fhir: <http://hl7.org/fhir/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

# - resource -------------------------------------------------------------------

[] a fhir:StructureDefinition;
  fhir:Resource.id [ fhir:value "observation-focusCode"];
  fhir:DomainResource.extension [
     fhir:index 0;

     fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg" ];
     fhir:Extension.value [ fhir:value "oo" ]
  ], [
     fhir:index 1;

     fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm" ];
     fhir:Extension.value [ fhir:value "1" ]
  ];
  fhir:CanonicalResource.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/observation-focusCode"];
  fhir:CanonicalResource.identifier [
     fhir:Identifier.system [ fhir:value "urn:ietf:rfc:3986" ];
     fhir:Identifier.value [ fhir:value "urn:oid:2.16.840.1.113883.4.642.5.1475" ]
  ];
  fhir:CanonicalResource.version [ fhir:value "5.0.0-ballot"];
  fhir:CanonicalResource.name [ fhir:value "focusCode"];
  fhir:CanonicalResource.title [ fhir:value "Focal Subject Code"];
  fhir:CanonicalResource.status [ fhir:value "draft"];
  fhir:CanonicalResource.experimental [ fhir:value "false"];
  fhir:CanonicalResource.date [ fhir:value "2015-03-02"];
  fhir:CanonicalResource.publisher [ fhir:value "Health Level Seven, Inc. - OO WG"];
  fhir:CanonicalResource.contact [
     fhir:ContactDetail.telecom [
       fhir:ContactPoint.system [ fhir:value "url" ];
       fhir:ContactPoint.value [ fhir:value "http://hl7.org/special/committees/orders" ]
     ]
  ];
  fhir:CanonicalResource.description [ fhir:value "A code representing the  focus of an observation when the focus is not the patient of record.  In other words, the focus of the observation is different from `Observation.subject`.   An example use case would be using the *Observation* resource to capture whether the mother is trained to change her child's tracheostomy tube.  In this example, the child is the patient of record and the mother is focal subject referenced using this extension.  Other example focal subjects include spouses, related persons, feti, or  donors."];

  fhir:StructureDefinition.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/observation-focusCode"];
  fhir:StructureDefinition.version [ fhir:value "4.3.0"];

  fhir:StructureDefinition.identifier [
     fhir:Identifier.system [ fhir:value "urn:ietf:rfc:3986" ];
     fhir:Identifier.value [ fhir:value "urn:oid:2.16.840.1.113883.4.642.5.1475" ]
  ];
  fhir:StructureDefinition.version [ fhir:value "5.0.0-ballot"];

  fhir:StructureDefinition.name [ fhir:value "focusCode"];
  fhir:StructureDefinition.title [ fhir:value "Focal Subject Code"];
  fhir:StructureDefinition.status [ fhir:value "draft"];
  fhir:StructureDefinition.experimental [ fhir:value "false"];
  fhir:StructureDefinition.date [ fhir:value "2015-03-02"];
  fhir:StructureDefinition.publisher [ fhir:value "Health Level Seven, Inc. - OO WG"];
  fhir:StructureDefinition.contact [
     fhir:index 0;

     fhir:ContactDetail.telecom [
       fhir:index 0;

       fhir:ContactPoint.system [ fhir:value "url" ];
       fhir:ContactPoint.value [ fhir:value "http://hl7.org/special/committees/orders" ]
     ]
  ];
  fhir:StructureDefinition.description [ fhir:value "A code representing the  focus of an observation when the focus is not the patient of record.  In other words, the focus of the observation is different from `Observation.subject`.   An example use case would be using the *Observation* resource to capture whether the mother is trained to change her child's tracheostomy tube.  In this example, the child is the patient of record and the mother is focal subject referenced using this extension.  Other example focal subjects include spouses, related persons, feti, or  donors."];
  fhir:StructureDefinition.fhirVersion [ fhir:value "4.3.0"];

  fhir:StructureDefinition.fhirVersion [ fhir:value "5.0.0"];

  fhir:StructureDefinition.mapping [
     fhir:index 0;
     fhir:StructureDefinition.identity [ fhir:value "rim" ];
     fhir:StructureDefinition.uri [ fhir:value "http://hl7.org/v3" ];
     fhir:StructureDefinition.name [ fhir:value "RIM Mapping" ]

     fhir:StructureDefinitionMappingComponent.identity [ fhir:value "rim" ];
     fhir:StructureDefinitionMappingComponent.uri [ fhir:value "http://hl7.org/v3" ];
     fhir:StructureDefinitionMappingComponent.name [ fhir:value "RIM Mapping" ]

  ];
  fhir:StructureDefinition.kind [ fhir:value "complex-type"];
  fhir:StructureDefinition.abstract [ fhir:value "false"];
  fhir:StructureDefinition.context [
     fhir:index 0;
     fhir:StructureDefinition.type [ fhir:value "element" ];
     fhir:StructureDefinition.expression [ fhir:value "Observation" ]

     fhir:StructureDefinitionContextComponent.type [ fhir:value "element" ];
     fhir:StructureDefinitionContextComponent.expression [ fhir:value "Observation" ]

  ];
  fhir:StructureDefinition.type [ fhir:value "Extension"];
  fhir:StructureDefinition.baseDefinition [ fhir:value "http://hl7.org/fhir/StructureDefinition/Extension"];
  fhir:StructureDefinition.derivation [ fhir:value "constraint"];
  fhir:StructureDefinition.snapshot [
     fhir:StructureDefinition.element [
       fhir:index 0;

     fhir:StructureDefinitionSnapshotComponent.element [

       fhir:Element.id [ fhir:value "Extension" ];
       fhir:ElementDefinition.path [ fhir:value "Extension" ];
       fhir:ElementDefinition.short [ fhir:value "Focus Code" ];
       fhir:ElementDefinition.definition [ fhir:value "A code representing the  focus of an observation when the focus is not the patient of record.  In other words, the focus of the observation is different from `Observation.subject`.   An example use case would be using the *Observation* resource to capture whether the mother is trained to change her child's tracheostomy tube.  In this example, the child is the patient of record and the mother is focal subject referenced using this extension.  Other example focal subjects include spouses, related persons, feti, or  donors." ];
       fhir:ElementDefinition.comment [ fhir:value "Use Observation.specimen element to describe the specimen.  Only used if not implicit in code found in Observation.code." ];
       fhir:ElementDefinition.min [ fhir:value "0" ];
       fhir:ElementDefinition.max [ fhir:value "1" ];
       fhir:ElementDefinition.base [
         fhir:ElementDefinition.path [ fhir:value "Extension" ];
         fhir:ElementDefinition.min [ fhir:value "0" ];
         fhir:ElementDefinition.max [ fhir:value "*" ]
       ];
       fhir:ElementDefinition.condition [
         fhir:value "ele-1";
         fhir:index 0

         fhir:ElementDefinitionBaseComponent.path [ fhir:value "Extension" ];
         fhir:ElementDefinitionBaseComponent.min [ fhir:value "0" ];
         fhir:ElementDefinitionBaseComponent.max [ fhir:value "*" ]

       ];
       fhir:ElementDefinition.constraint [
         fhir:index 0;
         fhir:ElementDefinition.key [ fhir:value "ele-1" ];
         fhir:ElementDefinition.severity [ fhir:value "error" ];
         fhir:ElementDefinition.human [ fhir:value "All FHIR elements must have a @value or children unless an empty Parameters resource" ];
         fhir:ElementDefinition.expression [ fhir:value "hasValue() or (children().count() > id.count()) or $this is Parameters" ];
         fhir:ElementDefinition.xpath [ fhir:value "@value|f:*|h:div|self::f:Parameters" ];
         fhir:ElementDefinition.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Element" ]

         fhir:ElementDefinitionConstraintComponent.key [ fhir:value "ele-1" ];
         fhir:ElementDefinitionConstraintComponent.severity [ fhir:value "error" ];
         fhir:ElementDefinitionConstraintComponent.human [ fhir:value "All FHIR elements must have a @value or children" ];
         fhir:ElementDefinitionConstraintComponent.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
         fhir:ElementDefinitionConstraintComponent.xpath [ fhir:value "@value|f:*|h:div" ];
         fhir:ElementDefinitionConstraintComponent.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Element" ]

       ], [
         fhir:index 1;
         fhir:ElementDefinition.key [ fhir:value "ext-1" ];
         fhir:ElementDefinition.severity [ fhir:value "error" ];
         fhir:ElementDefinition.human [ fhir:value "Must have either extensions or value[x], not both" ];
         fhir:ElementDefinition.expression [ fhir:value "extension.exists() != value.exists()" ];
         fhir:ElementDefinition.xpath [ fhir:value "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" ];
         fhir:ElementDefinition.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Extension" ]

         fhir:ElementDefinitionConstraintComponent.key [ fhir:value "ext-1" ];
         fhir:ElementDefinitionConstraintComponent.severity [ fhir:value "error" ];
         fhir:ElementDefinitionConstraintComponent.human [ fhir:value "Must have either extensions or value[x], not both" ];
         fhir:ElementDefinitionConstraintComponent.expression [ fhir:value "extension.exists() != value.exists()" ];
         fhir:ElementDefinitionConstraintComponent.xpath [ fhir:value "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" ];
         fhir:ElementDefinitionConstraintComponent.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Extension" ]

       ];
       fhir:ElementDefinition.isModifier [ fhir:value "false" ]
     ], [
       fhir:index 1;

       fhir:Element.id [ fhir:value "Extension.id" ];
       fhir:ElementDefinition.path [ fhir:value "Extension.id" ];
       fhir:ElementDefinition.representation [
         fhir:value "xmlAttr";
         fhir:index 0
       ];

       fhir:ElementDefinition.representation [ fhir:value "xmlAttr" ];

       fhir:ElementDefinition.short [ fhir:value "Unique id for inter-element referencing" ];
       fhir:ElementDefinition.definition [ fhir:value "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." ];
       fhir:ElementDefinition.min [ fhir:value "0" ];
       fhir:ElementDefinition.max [ fhir:value "1" ];
       fhir:ElementDefinition.base [
         fhir:ElementDefinition.path [ fhir:value "Element.id" ];
         fhir:ElementDefinition.min [ fhir:value "0" ];
         fhir:ElementDefinition.max [ fhir:value "1" ]

         fhir:ElementDefinitionBaseComponent.path [ fhir:value "Element.id" ];
         fhir:ElementDefinitionBaseComponent.min [ fhir:value "0" ];
         fhir:ElementDefinitionBaseComponent.max [ fhir:value "1" ]

       ];
       fhir:ElementDefinition.type [
         fhir:index 0;

         fhir:Element.extension [
           fhir:index 0;

           fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type" ];
           fhir:Extension.value [ fhir:value "id" ]
         ];
         fhir:ElementDefinition.code [ fhir:value "http://hl7.org/fhirpath/System.String" ]

         fhir:TypeRefComponent.code [ fhir:value "http://hl7.org/fhirpath/System.String" ]

       ];
       fhir:ElementDefinition.isModifier [ fhir:value "false" ];
       fhir:ElementDefinition.isSummary [ fhir:value "false" ];
       fhir:ElementDefinition.mapping [
         fhir:index 0;
         fhir:ElementDefinition.identity [ fhir:value "rim" ];
         fhir:ElementDefinition.map [ fhir:value "n/a" ]

         fhir:ElementDefinitionMappingComponent.identity [ fhir:value "rim" ];
         fhir:ElementDefinitionMappingComponent.map [ fhir:value "n/a" ]

       ]
     ], [
       fhir:index 2;

       fhir:Element.id [ fhir:value "Extension.extension" ];
       fhir:ElementDefinition.path [ fhir:value "Extension.extension" ];
       fhir:ElementDefinition.slicing [
         fhir:ElementDefinition.discriminator [
           fhir:index 0;
           fhir:ElementDefinition.type [ fhir:value "value" ];
           fhir:ElementDefinition.path [ fhir:value "url" ]

         fhir:ElementDefinitionSlicingComponent.discriminator [
           fhir:ElementDefinitionSlicingDiscriminatorComponent.type [ fhir:value "value" ];
           fhir:ElementDefinitionSlicingDiscriminatorComponent.path [ fhir:value "url" ]

         ];
         fhir:ElementDefinition.description [ fhir:value "Extensions are always sliced by (at least) url" ];
         fhir:ElementDefinition.rules [ fhir:value "open" ]

         fhir:ElementDefinitionSlicingComponent.description [ fhir:value "Extensions are always sliced by (at least) url" ];
         fhir:ElementDefinitionSlicingComponent.rules [ fhir:value "open" ]

       ];
       fhir:ElementDefinition.short [ fhir:value "Extension" ];
       fhir:ElementDefinition.definition [ fhir:value "An Extension" ];
       fhir:ElementDefinition.min [ fhir:value "0" ];
       fhir:ElementDefinition.max [ fhir:value "0" ];
       fhir:ElementDefinition.base [
         fhir:ElementDefinition.path [ fhir:value "Element.extension" ];
         fhir:ElementDefinition.min [ fhir:value "0" ];
         fhir:ElementDefinition.max [ fhir:value "*" ]

         fhir:ElementDefinitionBaseComponent.path [ fhir:value "Element.extension" ];
         fhir:ElementDefinitionBaseComponent.min [ fhir:value "0" ];
         fhir:ElementDefinitionBaseComponent.max [ fhir:value "*" ]

       ];
       fhir:ElementDefinition.type [
         fhir:index 0;
         fhir:ElementDefinition.code [ fhir:value "Extension" ]

         fhir:TypeRefComponent.code [ fhir:value "Extension" ]

       ];
       fhir:ElementDefinition.constraint [
         fhir:index 0;
         fhir:ElementDefinition.key [ fhir:value "ele-1" ];
         fhir:ElementDefinition.severity [ fhir:value "error" ];
         fhir:ElementDefinition.human [ fhir:value "All FHIR elements must have a @value or children" ];
         fhir:ElementDefinition.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
         fhir:ElementDefinition.xpath [ fhir:value "@value|f:*|h:div" ];
         fhir:ElementDefinition.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Element" ]

         fhir:ElementDefinitionConstraintComponent.key [ fhir:value "ele-1" ];
         fhir:ElementDefinitionConstraintComponent.severity [ fhir:value "error" ];
         fhir:ElementDefinitionConstraintComponent.human [ fhir:value "All FHIR elements must have a @value or children" ];
         fhir:ElementDefinitionConstraintComponent.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
         fhir:ElementDefinitionConstraintComponent.xpath [ fhir:value "@value|f:*|h:div" ];
         fhir:ElementDefinitionConstraintComponent.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Element" ]

       ], [
         fhir:index 1;
         fhir:ElementDefinition.key [ fhir:value "ext-1" ];
         fhir:ElementDefinition.severity [ fhir:value "error" ];
         fhir:ElementDefinition.human [ fhir:value "Must have either extensions or value[x], not both" ];
         fhir:ElementDefinition.expression [ fhir:value "extension.exists() != value.exists()" ];
         fhir:ElementDefinition.xpath [ fhir:value "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])" ];
         fhir:ElementDefinition.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Extension" ]

         fhir:ElementDefinitionConstraintComponent.key [ fhir:value "ext-1" ];
         fhir:ElementDefinitionConstraintComponent.severity [ fhir:value "error" ];
         fhir:ElementDefinitionConstraintComponent.human [ fhir:value "Must have either extensions or value[x], not both" ];
         fhir:ElementDefinitionConstraintComponent.expression [ fhir:value "extension.exists() != value.exists()" ];
         fhir:ElementDefinitionConstraintComponent.xpath [ fhir:value "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])" ];
         fhir:ElementDefinitionConstraintComponent.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Extension" ]

       ];
       fhir:ElementDefinition.isModifier [ fhir:value "false" ];
       fhir:ElementDefinition.isSummary [ fhir:value "false" ]
     ], [
       fhir:index 3;

       fhir:Element.id [ fhir:value "Extension.url" ];
       fhir:ElementDefinition.path [ fhir:value "Extension.url" ];
       fhir:ElementDefinition.representation [
         fhir:value "xmlAttr";
         fhir:index 0
       ];

       fhir:ElementDefinition.representation [ fhir:value "xmlAttr" ];

       fhir:ElementDefinition.short [ fhir:value "identifies the meaning of the extension" ];
       fhir:ElementDefinition.definition [ fhir:value "Source of the definition for the extension code - a logical name or a URL." ];
       fhir:ElementDefinition.comment [ fhir:value "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension." ];
       fhir:ElementDefinition.min [ fhir:value "1" ];
       fhir:ElementDefinition.max [ fhir:value "1" ];
       fhir:ElementDefinition.base [
         fhir:ElementDefinition.path [ fhir:value "Extension.url" ];
         fhir:ElementDefinition.min [ fhir:value "1" ];
         fhir:ElementDefinition.max [ fhir:value "1" ]

         fhir:ElementDefinitionBaseComponent.path [ fhir:value "Extension.url" ];
         fhir:ElementDefinitionBaseComponent.min [ fhir:value "1" ];
         fhir:ElementDefinitionBaseComponent.max [ fhir:value "1" ]

       ];
       fhir:ElementDefinition.type [
         fhir:index 0;

         fhir:Element.extension [
           fhir:index 0;

           fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type" ];
           fhir:Extension.value [ fhir:value "uri" ]
         ];
         fhir:ElementDefinition.code [ fhir:value "http://hl7.org/fhirpath/System.String" ]

         fhir:TypeRefComponent.code [ fhir:value "http://hl7.org/fhirpath/System.String" ]

       ];
       fhir:ElementDefinition.fixed [ fhir:value "http://hl7.org/fhir/StructureDefinition/observation-focusCode" ];
       fhir:ElementDefinition.isModifier [ fhir:value "false" ];
       fhir:ElementDefinition.isSummary [ fhir:value "false" ];
       fhir:ElementDefinition.mapping [
         fhir:index 0;
         fhir:ElementDefinition.identity [ fhir:value "rim" ];
         fhir:ElementDefinition.map [ fhir:value "N/A" ]

         fhir:ElementDefinitionMappingComponent.identity [ fhir:value "rim" ];
         fhir:ElementDefinitionMappingComponent.map [ fhir:value "N/A" ]

       ]
     ], [
       fhir:index 4;

       fhir:Element.id [ fhir:value "Extension.value[x]" ];
       fhir:ElementDefinition.path [ fhir:value "Extension.value[x]" ];
       fhir:ElementDefinition.short [ fhir:value "Value of extension" ];
       fhir:ElementDefinition.definition [ fhir:value "Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list)." ];
       fhir:ElementDefinition.min [ fhir:value "1" ];
       fhir:ElementDefinition.max [ fhir:value "1" ];
       fhir:ElementDefinition.base [
         fhir:ElementDefinition.path [ fhir:value "Extension.value[x]" ];
         fhir:ElementDefinition.min [ fhir:value "0" ];
         fhir:ElementDefinition.max [ fhir:value "1" ]

         fhir:ElementDefinitionBaseComponent.path [ fhir:value "Extension.value[x]" ];
         fhir:ElementDefinitionBaseComponent.min [ fhir:value "0" ];
         fhir:ElementDefinitionBaseComponent.max [ fhir:value "1" ]

       ];
       fhir:ElementDefinition.type [
         fhir:index 0;
         fhir:ElementDefinition.code [ fhir:value "CodeableConcept" ]

         fhir:TypeRefComponent.code [ fhir:value "CodeableConcept" ]

       ];
       fhir:ElementDefinition.constraint [
         fhir:index 0;
         fhir:ElementDefinition.key [ fhir:value "ele-1" ];
         fhir:ElementDefinition.severity [ fhir:value "error" ];
         fhir:ElementDefinition.human [ fhir:value "All FHIR elements must have a @value or children" ];
         fhir:ElementDefinition.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
         fhir:ElementDefinition.xpath [ fhir:value "@value|f:*|h:div" ];
         fhir:ElementDefinition.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Element" ]

         fhir:ElementDefinitionConstraintComponent.key [ fhir:value "ele-1" ];
         fhir:ElementDefinitionConstraintComponent.severity [ fhir:value "error" ];
         fhir:ElementDefinitionConstraintComponent.human [ fhir:value "All FHIR elements must have a @value or children" ];
         fhir:ElementDefinitionConstraintComponent.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
         fhir:ElementDefinitionConstraintComponent.xpath [ fhir:value "@value|f:*|h:div" ];
         fhir:ElementDefinitionConstraintComponent.source [ fhir:value "http://hl7.org/fhir/StructureDefinition/Element" ]

       ];
       fhir:ElementDefinition.isModifier [ fhir:value "false" ];
       fhir:ElementDefinition.isSummary [ fhir:value "false" ];
       fhir:ElementDefinition.binding [
         fhir:Element.extension [
           fhir:index 0;

           fhir:Extension.url [ fhir:value "http://hl7.org/fhir/build/StructureDefinition/definition" ];
           fhir:Extension.value [ fhir:value "Codes for observation targets.  Derived from both HL7 v3 and SNOMED CT code systems." ]
         ], [
           fhir:index 1;

           fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName" ];
           fhir:Extension.value [ fhir:value "FocusCode" ]
         ];
         fhir:ElementDefinition.strength [ fhir:value "example" ];
         fhir:ElementDefinition.description [ fhir:value "Derived from both HL7 v3 and SNOMED CT code systems" ];
         fhir:ElementDefinition.valueSet [ fhir:value "http://hl7.org/fhir/ValueSet/focal-subject" ]

         fhir:ElementDefinitionBindingComponent.strength [ fhir:value "example" ];
         fhir:ElementDefinitionBindingComponent.description [ fhir:value "Derived from both HL7 v3 and SNOMED CT code systems" ];
         fhir:ElementDefinitionBindingComponent.valueSet [ fhir:value "http://hl7.org/fhir/ValueSet/focal-subject" ]

       ];
       fhir:ElementDefinition.mapping [
         fhir:index 0;
         fhir:ElementDefinition.identity [ fhir:value "rim" ];
         fhir:ElementDefinition.map [ fhir:value "N/A" ]

         fhir:ElementDefinitionMappingComponent.identity [ fhir:value "rim" ];
         fhir:ElementDefinitionMappingComponent.map [ fhir:value "N/A" ]

       ]
     ]
  ];
  fhir:StructureDefinition.differential [
     fhir:StructureDefinition.element [
       fhir:index 0;

     fhir:StructureDefinitionDifferentialComponent.element [

       fhir:Element.id [ fhir:value "Extension" ];
       fhir:ElementDefinition.path [ fhir:value "Extension" ];
       fhir:ElementDefinition.short [ fhir:value "Focus Code" ];
       fhir:ElementDefinition.definition [ fhir:value "A code representing the  focus of an observation when the focus is not the patient of record.  In other words, the focus of the observation is different from `Observation.subject`.   An example use case would be using the *Observation* resource to capture whether the mother is trained to change her child's tracheostomy tube.  In this example, the child is the patient of record and the mother is focal subject referenced using this extension.  Other example focal subjects include spouses, related persons, feti, or  donors." ];
       fhir:ElementDefinition.comment [ fhir:value "Use Observation.specimen element to describe the specimen.  Only used if not implicit in code found in Observation.code." ];
       fhir:ElementDefinition.min [ fhir:value "0" ];
       fhir:ElementDefinition.max [ fhir:value "1" ]
     ], [
       fhir:index 1;

       fhir:Element.id [ fhir:value "Extension.extension" ];
       fhir:ElementDefinition.path [ fhir:value "Extension.extension" ];
       fhir:ElementDefinition.max [ fhir:value "0" ]
     ], [
       fhir:index 2;

       fhir:Element.id [ fhir:value "Extension.url" ];
       fhir:ElementDefinition.path [ fhir:value "Extension.url" ];
       fhir:ElementDefinition.fixed [ fhir:value "http://hl7.org/fhir/StructureDefinition/observation-focusCode" ]
     ], [
       fhir:index 3;

       fhir:Element.id [ fhir:value "Extension.value[x]" ];
       fhir:ElementDefinition.path [ fhir:value "Extension.value[x]" ];
       fhir:ElementDefinition.min [ fhir:value "1" ];
       fhir:ElementDefinition.type [
         fhir:index 0;
         fhir:ElementDefinition.code [ fhir:value "CodeableConcept" ]

         fhir:TypeRefComponent.code [ fhir:value "CodeableConcept" ]

       ];
       fhir:ElementDefinition.binding [
         fhir:Element.extension [
           fhir:index 0;

           fhir:Extension.url [ fhir:value "http://hl7.org/fhir/build/StructureDefinition/definition" ];
           fhir:Extension.value [ fhir:value "Codes for observation targets.  Derived from both HL7 v3 and SNOMED CT code systems." ]
         ], [
           fhir:index 1;

           fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName" ];
           fhir:Extension.value [ fhir:value "FocusCode" ]
         ];
         fhir:ElementDefinition.strength [ fhir:value "example" ];
         fhir:ElementDefinition.description [ fhir:value "Derived from both HL7 v3 and SNOMED CT code systems" ];
         fhir:ElementDefinition.valueSet [ fhir:value "http://hl7.org/fhir/ValueSet/focal-subject" ]

         fhir:ElementDefinitionBindingComponent.strength [ fhir:value "example" ];
         fhir:ElementDefinitionBindingComponent.description [ fhir:value "Derived from both HL7 v3 and SNOMED CT code systems" ];
         fhir:ElementDefinitionBindingComponent.valueSet [ fhir:value "http://hl7.org/fhir/ValueSet/focal-subject" ]

       ]
     ]
  ] .

# -------------------------------------------------------------------------------------

Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.