DaVinci Payer Data Exchange (PDex) US Drug Formulary
1.1.0 - STU 1.1

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## Extension: Network - TTL Profile

TTL representation of the usdf-Network-extension extension.

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    @prefix fhir: <http://hl7.org/fhir/> .
    @prefix owl: <http://www.w3.org/2002/07/owl#> .
    @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
    @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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

     a fhir:StructureDefinition;
      fhir:nodeRole fhir:treeRoot;
      fhir:Resource.id [ fhir:value "usdf-Network-extension"];
      fhir:DomainResource.text [
         fhir:Narrative.status [ fhir:value "extensions" ];
         fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Minimum and Maximum # of times the the element can appear in the instance\">Card.</a></th><th style=\"width: 100px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Additional information about the element\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Legend for this format\"><img src=\"http://hl7.org/fhir/R4/help16.png\" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-usdf-Network-extension-definitions.html#Extension\" title=\"Array of Networks within a plan.  If a network is not applicable for a plan, enter 'Not applicable' in the value string.\">Extension</a><a name=\"Extension\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">*</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/extensibility.html#Extension\">Extension</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Network</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_extension_simple.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Simple Extension\" class=\"hierarchy\"/> <span style=\"text-decoration:line-through\">extension</span><a name=\"Extension.extension\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"text-decoration:line-through\"/><span style=\"text-decoration:line-through\">0</span><span style=\"text-decoration:line-through\">..</span><span style=\"text-decoration:line-through\">0</span></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-usdf-Network-extension-definitions.html#Extension.url\">url</a><a name=\"Extension.url\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">1</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5\" href=\"http://hl7.org/fhir/R4/datatypes.html#uri\">uri</a></td><td style=\"vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"color: darkgreen\">&quot;http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-Network-extension&quot;</span></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_primitive.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-usdf-Network-extension-definitions.html#Extension.value[x]\">value[x]</a><a name=\"Extension.value_x_\"> </a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..<span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R4/datatypes.html#string\">string</a></td><td style=\"vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">Value of extension</span></td></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"http://hl7.org/fhir/R4/formats.html#table\" title=\"Legend for this format\"><img src=\"http://hl7.org/fhir/R4/help16.png\" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
      ];
      fhir:StructureDefinition.url [ fhir:value "http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-Network-extension"];
      fhir:StructureDefinition.version [ fhir:value "1.1.0"];
      fhir:StructureDefinition.name [ fhir:value "Network"];
      fhir:StructureDefinition.title [ fhir:value "Network"];
      fhir:StructureDefinition.status [ fhir:value "active"];
      fhir:StructureDefinition.date [ fhir:value "2021-10-15T15:46:55+00:00"^^xsd:dateTime];
      fhir:StructureDefinition.publisher [ fhir:value "HL7 Pharmacy Working Group"];
      fhir:StructureDefinition.contact [
         fhir:index 0;
         fhir:ContactDetail.name [ fhir:value "HL7 Pharmacy Working Group" ];
         fhir:ContactDetail.telecom [
           fhir:index 0;
           fhir:ContactPoint.system [ fhir:value "url" ];
           fhir:ContactPoint.value [ fhir:value "http://www.hl7.org/Special/committees/medication" ]     ], [
           fhir:index 1;
           fhir:ContactPoint.system [ fhir:value "email" ];
           fhir:ContactPoint.value [ fhir:value "pharmacy@lists.HL7.org" ]     ]
      ];
      fhir:StructureDefinition.description [ fhir:value "Array of Networks within a plan.  If a network is not applicable for a plan, enter 'Not applicable' in the value string."];
      fhir:StructureDefinition.jurisdiction [
         fhir:index 0;
         fhir:CodeableConcept.coding [
           fhir:index 0;
           fhir:Coding.system [ fhir:value "urn:iso:std:iso:3166" ];
           fhir:Coding.code [ fhir:value "US" ]     ]
      ];
      fhir:StructureDefinition.fhirVersion [ fhir:value "4.0.1"];
      fhir:StructureDefinition.mapping [
         fhir:index 0;
         fhir:StructureDefinition.mapping.identity [ fhir:value "rim" ];
         fhir:StructureDefinition.mapping.uri [ fhir:value "http://hl7.org/v3" ];
         fhir:StructureDefinition.mapping.name [ fhir:value "RIM Mapping" ]
      ];
      fhir:StructureDefinition.kind [ fhir:value "complex-type"];
      fhir:StructureDefinition.abstract [ fhir:value "false"^^xsd:boolean];
      fhir:StructureDefinition.context [
         fhir:index 0;
         fhir:StructureDefinition.context.type [ fhir:value "element" ];
         fhir:StructureDefinition.context.expression [ fhir:value "Element" ]
      ];
      fhir:StructureDefinition.type [ fhir:value "Extension"];
      fhir:StructureDefinition.baseDefinition [
         fhir:value "http://hl7.org/fhir/StructureDefinition/Extension";
         fhir:link <http://hl7.org/fhir/StructureDefinition/Extension>
      ];
      fhir:StructureDefinition.derivation [ fhir:value "constraint"];
      fhir:StructureDefinition.snapshot [
         fhir:StructureDefinition.snapshot.element [
           fhir:index 0;
           fhir:Element.id [ fhir:value "Extension" ];
           fhir:ElementDefinition.path [ fhir:value "Extension" ];
           fhir:ElementDefinition.short [ fhir:value "Network" ];
           fhir:ElementDefinition.definition [ fhir:value "Array of Networks within a plan.  If a network is not applicable for a plan, enter 'Not applicable' in the value string." ];
           fhir:ElementDefinition.min [ fhir:value "0"^^xsd:nonNegativeInteger ];
           fhir:ElementDefinition.max [ fhir:value "*" ];
           fhir:ElementDefinition.base [
             fhir:ElementDefinition.base.path [ fhir:value "Extension" ];
             fhir:ElementDefinition.base.min [ fhir:value "0"^^xsd:nonNegativeInteger ];
             fhir:ElementDefinition.base.max [ fhir:value "*" ]       ];
           fhir:ElementDefinition.condition [
             fhir:value "ele-1";
             fhir:index 0       ];
           fhir:ElementDefinition.constraint [
             fhir:index 0;
             fhir:ElementDefinition.constraint.key [ fhir:value "ele-1" ];
             fhir:ElementDefinition.constraint.severity [ fhir:value "error" ];
             fhir:ElementDefinition.constraint.human [ fhir:value "All FHIR elements must have a @value or children" ];
             fhir:ElementDefinition.constraint.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
             fhir:ElementDefinition.constraint.xpath [ fhir:value "@value|f:*|h:div" ];
             fhir:ElementDefinition.constraint.source [
               fhir:value "http://hl7.org/fhir/StructureDefinition/Element";
               fhir:link <http://hl7.org/fhir/StructureDefinition/Element>         ]       ], [
             fhir:index 1;
             fhir:ElementDefinition.constraint.key [ fhir:value "ext-1" ];
             fhir:ElementDefinition.constraint.severity [ fhir:value "error" ];
             fhir:ElementDefinition.constraint.human [ fhir:value "Must have either extensions or value[x], not both" ];
             fhir:ElementDefinition.constraint.expression [ fhir:value "extension.exists() != value.exists()" ];
             fhir:ElementDefinition.constraint.xpath [ fhir:value "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])" ];
             fhir:ElementDefinition.constraint.source [
               fhir:value "http://hl7.org/fhir/StructureDefinition/Extension";
               fhir:link <http://hl7.org/fhir/StructureDefinition/Extension>         ]       ];
           fhir:ElementDefinition.isModifier [ fhir:value "false"^^xsd:boolean ]     ], [
           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.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"^^xsd:nonNegativeInteger ];
           fhir:ElementDefinition.max [ fhir:value "1" ];
           fhir:ElementDefinition.base [
             fhir:ElementDefinition.base.path [ fhir:value "Element.id" ];
             fhir:ElementDefinition.base.min [ fhir:value "0"^^xsd:nonNegativeInteger ];
             fhir:ElementDefinition.base.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.valueUrl [ fhir:value "string" ]         ];
             fhir:ElementDefinition.type.code [ fhir:value "http://hl7.org/fhirpath/System.String" ]       ];
           fhir:ElementDefinition.isModifier [ fhir:value "false"^^xsd:boolean ];
           fhir:ElementDefinition.isSummary [ fhir:value "false"^^xsd:boolean ];
           fhir:ElementDefinition.mapping [
             fhir:index 0;
             fhir:ElementDefinition.mapping.identity [ fhir:value "rim" ];
             fhir:ElementDefinition.mapping.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.slicing.discriminator [
               fhir:index 0;
               fhir:ElementDefinition.slicing.discriminator.type [ fhir:value "value" ];
               fhir:ElementDefinition.slicing.discriminator.path [ fhir:value "url" ]         ];
             fhir:ElementDefinition.slicing.description [ fhir:value "Extensions are always sliced by (at least) url" ];
             fhir:ElementDefinition.slicing.rules [ fhir:value "open" ]       ];
           fhir:ElementDefinition.short [ fhir:value "Extension" ];
           fhir:ElementDefinition.definition [ fhir:value "An Extension" ];
           fhir:ElementDefinition.min [ fhir:value "0"^^xsd:nonNegativeInteger ];
           fhir:ElementDefinition.max [ fhir:value "0" ];
           fhir:ElementDefinition.base [
             fhir:ElementDefinition.base.path [ fhir:value "Element.extension" ];
             fhir:ElementDefinition.base.min [ fhir:value "0"^^xsd:nonNegativeInteger ];
             fhir:ElementDefinition.base.max [ fhir:value "*" ]       ];
           fhir:ElementDefinition.type [
             fhir:index 0;
             fhir:ElementDefinition.type.code [ fhir:value "Extension" ]       ];
           fhir:ElementDefinition.constraint [
             fhir:index 0;
             fhir:ElementDefinition.constraint.key [ fhir:value "ele-1" ];
             fhir:ElementDefinition.constraint.severity [ fhir:value "error" ];
             fhir:ElementDefinition.constraint.human [ fhir:value "All FHIR elements must have a @value or children" ];
             fhir:ElementDefinition.constraint.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
             fhir:ElementDefinition.constraint.xpath [ fhir:value "@value|f:*|h:div" ];
             fhir:ElementDefinition.constraint.source [
               fhir:value "http://hl7.org/fhir/StructureDefinition/Element";
               fhir:link <http://hl7.org/fhir/StructureDefinition/Element>         ]       ], [
             fhir:index 1;
             fhir:ElementDefinition.constraint.key [ fhir:value "ext-1" ];
             fhir:ElementDefinition.constraint.severity [ fhir:value "error" ];
             fhir:ElementDefinition.constraint.human [ fhir:value "Must have either extensions or value[x], not both" ];
             fhir:ElementDefinition.constraint.expression [ fhir:value "extension.exists() != value.exists()" ];
             fhir:ElementDefinition.constraint.xpath [ fhir:value "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])" ];
             fhir:ElementDefinition.constraint.source [
               fhir:value "http://hl7.org/fhir/StructureDefinition/Extension";
               fhir:link <http://hl7.org/fhir/StructureDefinition/Extension>         ]       ];
           fhir:ElementDefinition.isModifier [ fhir:value "false"^^xsd:boolean ];
           fhir:ElementDefinition.isSummary [ fhir:value "false"^^xsd:boolean ]     ], [
           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.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"^^xsd:nonNegativeInteger ];
           fhir:ElementDefinition.max [ fhir:value "1" ];
           fhir:ElementDefinition.base [
             fhir:ElementDefinition.base.path [ fhir:value "Extension.url" ];
             fhir:ElementDefinition.base.min [ fhir:value "1"^^xsd:nonNegativeInteger ];
             fhir:ElementDefinition.base.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.valueUrl [ fhir:value "uri" ]         ];
             fhir:ElementDefinition.type.code [ fhir:value "http://hl7.org/fhirpath/System.String" ]       ];
           fhir:ElementDefinition.fixedUri [ fhir:value "http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-Network-extension" ];
           fhir:ElementDefinition.isModifier [ fhir:value "false"^^xsd:boolean ];
           fhir:ElementDefinition.isSummary [ fhir:value "false"^^xsd:boolean ];
           fhir:ElementDefinition.mapping [
             fhir:index 0;
             fhir:ElementDefinition.mapping.identity [ fhir:value "rim" ];
             fhir:ElementDefinition.mapping.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](http://hl7.org/fhir/R4/extensibility.html) for a list)." ];
           fhir:ElementDefinition.min [ fhir:value "1"^^xsd:nonNegativeInteger ];
           fhir:ElementDefinition.max [ fhir:value "1" ];
           fhir:ElementDefinition.base [
             fhir:ElementDefinition.base.path [ fhir:value "Extension.value[x]" ];
             fhir:ElementDefinition.base.min [ fhir:value "0"^^xsd:nonNegativeInteger ];
             fhir:ElementDefinition.base.max [ fhir:value "1" ]       ];
           fhir:ElementDefinition.type [
             fhir:index 0;
             fhir:ElementDefinition.type.code [ fhir:value "string" ]       ];
           fhir:ElementDefinition.constraint [
             fhir:index 0;
             fhir:ElementDefinition.constraint.key [ fhir:value "ele-1" ];
             fhir:ElementDefinition.constraint.severity [ fhir:value "error" ];
             fhir:ElementDefinition.constraint.human [ fhir:value "All FHIR elements must have a @value or children" ];
             fhir:ElementDefinition.constraint.expression [ fhir:value "hasValue() or (children().count() > id.count())" ];
             fhir:ElementDefinition.constraint.xpath [ fhir:value "@value|f:*|h:div" ];
             fhir:ElementDefinition.constraint.source [
               fhir:value "http://hl7.org/fhir/StructureDefinition/Element";
               fhir:link <http://hl7.org/fhir/StructureDefinition/Element>         ]       ];
           fhir:ElementDefinition.isModifier [ fhir:value "false"^^xsd:boolean ];
           fhir:ElementDefinition.isSummary [ fhir:value "false"^^xsd:boolean ];
           fhir:ElementDefinition.mapping [
             fhir:index 0;
             fhir:ElementDefinition.mapping.identity [ fhir:value "rim" ];
             fhir:ElementDefinition.mapping.map [ fhir:value "N/A" ]       ]     ]
      ];
      fhir:StructureDefinition.differential [
         fhir:StructureDefinition.differential.element [
           fhir:index 0;
           fhir:Element.id [ fhir:value "Extension" ];
           fhir:ElementDefinition.path [ fhir:value "Extension" ];
           fhir:ElementDefinition.short [ fhir:value "Network" ];
           fhir:ElementDefinition.definition [ fhir:value "Array of Networks within a plan.  If a network is not applicable for a plan, enter 'Not applicable' in the value string." ]     ], [
           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.fixedUri [ fhir:value "http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-Network-extension" ]     ], [
           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"^^xsd:nonNegativeInteger ];
           fhir:ElementDefinition.type [
             fhir:index 0;
             fhir:ElementDefinition.type.code [ fhir:value "string" ]       ]     ]
      ].

    # - ontology header ------------------------------------------------------------

     a owl:Ontology;
      owl:imports fhir:fhir.ttl.