HL7 Terminology (THO)
5.1.0 - Publication International flag

This page is part of the HL7 Terminology (v5.1.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions

: maritalStatus - TTL Representation

Active as of 2019-12-01

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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:CodeSystem;
  fhir:nodeRole fhir:treeRoot;
  fhir:Resource.id [ fhir:value "v2-0002"]; # 
  fhir:DomainResource.text [
     fhir:Narrative.status [ fhir:value "generated" ];
     fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Properties</b></p><p><b>This code system  defines the following properties for its concepts</b></p><table class=\"grid\"><tr><td><b>Code</b></td><td><b>URI</b></td><td><b>Type</b></td><td><b>Description</b></td></tr><tr><td>status</td><td>http://terminology.hl7.org/CodeSystem/utg-concept-properties#status</td><td>code</td><td>Status of the concept</td></tr><tr><td>deprecated</td><td>http://terminology.hl7.org/CodeSystem/utg-concept-properties#v2-table-deprecated</td><td>code</td><td>Version of HL7 in which the code was deprecated</td></tr></table><p><b>Concepts</b></p><p>This code system <code>http://terminology.hl7.org/CodeSystem/v2-0002</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">A<a name=\"v2-0002-A\"> </a></td><td>Separated</td><td>Separated</td></tr><tr><td style=\"white-space:nowrap\">D<a name=\"v2-0002-D\"> </a></td><td>Divorced</td><td>Divorced</td></tr><tr><td style=\"white-space:nowrap\">M<a name=\"v2-0002-M\"> </a></td><td>Married</td><td>Married</td></tr><tr><td style=\"white-space:nowrap\">S<a name=\"v2-0002-S\"> </a></td><td>Single</td><td>Single</td></tr><tr><td style=\"white-space:nowrap\">W<a name=\"v2-0002-W\"> </a></td><td>Widowed</td><td>Widowed</td></tr><tr><td style=\"white-space:nowrap\">C<a name=\"v2-0002-C\"> </a></td><td>Common law</td><td>Common law</td></tr><tr><td style=\"white-space:nowrap\">G<a name=\"v2-0002-G\"> </a></td><td>Living together</td><td>Living together</td></tr><tr><td style=\"white-space:nowrap\">P<a name=\"v2-0002-P\"> </a></td><td>Domestic partner</td><td>Domestic partner</td></tr><tr><td style=\"white-space:nowrap\">R<a name=\"v2-0002-R\"> </a></td><td>Registered domestic partner</td><td>Registered domestic partner</td></tr><tr><td style=\"white-space:nowrap\">E<a name=\"v2-0002-E\"> </a></td><td>Legally Separated</td><td>Legally Separated</td></tr><tr><td style=\"white-space:nowrap\">N<a name=\"v2-0002-N\"> </a></td><td>Annulled</td><td>Annulled</td></tr><tr><td style=\"white-space:nowrap\">I<a name=\"v2-0002-I\"> </a></td><td>Interlocutory</td><td>Interlocutory</td></tr><tr><td style=\"white-space:nowrap\">B<a name=\"v2-0002-B\"> </a></td><td>Unmarried</td><td>Unmarried</td></tr><tr><td style=\"white-space:nowrap\">U<a name=\"v2-0002-U\"> </a></td><td>Unknown</td><td>Unknown</td></tr><tr><td style=\"white-space:nowrap\">O<a name=\"v2-0002-O\"> </a></td><td>Other</td><td>Other</td></tr><tr><td style=\"white-space:nowrap\">T<a name=\"v2-0002-T\"> </a></td><td>Unreported</td><td>Unreported</td></tr></table><p><b>Additional Language Displays</b></p><table class=\"codes\"><tr><td><b>Code</b></td><td><b>Deutsch (German, de)</b></td></tr><tr><td>A</td><td>getrennt lebend</td></tr><tr><td>D</td><td>geschieden</td></tr><tr><td>M</td><td>verheiratet</td></tr><tr><td>S</td><td>allein lebend</td></tr><tr><td>W</td><td>verwitwet</td></tr><tr><td>C</td><td>eheähnliche Gemeinschaft</td></tr><tr><td>G</td><td>zusammenlebend</td></tr><tr><td>P</td><td>häuslicher Partner</td></tr><tr><td>R</td><td></td></tr><tr><td>E</td><td>rechtskräftig getrennt</td></tr><tr><td>N</td><td>annulliert</td></tr><tr><td>I</td><td></td></tr><tr><td>B</td><td>ledig</td></tr><tr><td>U</td><td>unbekannt</td></tr><tr><td>O</td><td>sonstiges</td></tr><tr><td>T</td><td>keine Angabe</td></tr></table></div>"
  ]; # 
  fhir:DomainResource.extension [
     fhir:index 0;
     fhir:Extension.url [ fhir:value "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg" ];
     fhir:Extension.valueCode [ fhir:value "pa" ]
  ]; # 
  fhir:CodeSystem.url [ fhir:value "http://terminology.hl7.org/CodeSystem/v2-0002"]; # 
  fhir:CodeSystem.identifier [
     fhir:index 0;
     fhir:Identifier.system [ fhir:value "urn:ietf:rfc:3986" ];
     fhir:Identifier.value [ fhir:value "urn:oid:2.16.840.1.113883.18.179" ]
  ]; # 
  fhir:CodeSystem.version [ fhir:value "2.2.0"]; # 
  fhir:CodeSystem.name [ fhir:value "MaritalStatus"]; # 
  fhir:CodeSystem.title [ fhir:value "maritalStatus"]; # 
  fhir:CodeSystem.status [ fhir:value "active"]; # 
  fhir:CodeSystem.experimental [ fhir:value "false"^^xsd:boolean]; # 
  fhir:CodeSystem.date [ fhir:value "2019-12-01"^^xsd:date]; # 
  fhir:CodeSystem.publisher [ fhir:value "HL7, Inc"]; # 
  fhir:CodeSystem.contact [
     fhir:index 0;
     fhir:ContactDetail.telecom [
       fhir:index 0;
       fhir:ContactPoint.system [ fhir:value "url" ];
       fhir:ContactPoint.value [ fhir:value "http://www.hl7.org/" ]     ]
  ]; # 
  fhir:CodeSystem.description [ fhir:value "Code system of concepts specifying a person's marital (civil/legal) status.  Used in HL7 Version 2.x messages in the PID segment."]; # 
  fhir:CodeSystem.purpose [ fhir:value "Underlying Master Code System for V2 table 0002 (Marital Status)"]; # 
  fhir:CodeSystem.copyright [ fhir:value "Copyright HL7. Licensed under creative commons public domain"]; # 
  fhir:CodeSystem.caseSensitive [ fhir:value "true"^^xsd:boolean]; # 
  fhir:CodeSystem.valueSet [
     fhir:value "http://terminology.hl7.org/ValueSet/v2-0002";
     fhir:link <http://terminology.hl7.org/ValueSet/v2-0002>
  ]; # 
  fhir:CodeSystem.hierarchyMeaning [ fhir:value "is-a"]; # 
  fhir:CodeSystem.compositional [ fhir:value "false"^^xsd:boolean]; # 
  fhir:CodeSystem.versionNeeded [ fhir:value "false"^^xsd:boolean]; # 
  fhir:CodeSystem.content [ fhir:value "complete"]; # 
  fhir:CodeSystem.property [
     fhir:index 0;
     fhir:CodeSystem.property.code [ fhir:value "status" ];
     fhir:CodeSystem.property.uri [ fhir:value "http://terminology.hl7.org/CodeSystem/utg-concept-properties#status" ];
     fhir:CodeSystem.property.description [ fhir:value "Status of the concept" ];
     fhir:CodeSystem.property.type [ fhir:value "code" ]
  ], [
     fhir:index 1;
     fhir:CodeSystem.property.code [ fhir:value "deprecated" ];
     fhir:CodeSystem.property.uri [ fhir:value "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v2-table-deprecated" ];
     fhir:CodeSystem.property.description [ fhir:value "Version of HL7 in which the code was deprecated" ];
     fhir:CodeSystem.property.type [ fhir:value "code" ]
  ]; # 
  fhir:CodeSystem.concept [
     fhir:index 0;
     fhir:Element.id [ fhir:value "107" ];
     fhir:CodeSystem.concept.code [ fhir:value "A" ];
     fhir:CodeSystem.concept.display [ fhir:value "Separated" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Separated" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "getrennt lebend" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 1;
     fhir:Element.id [ fhir:value "108" ];
     fhir:CodeSystem.concept.code [ fhir:value "D" ];
     fhir:CodeSystem.concept.display [ fhir:value "Divorced" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Divorced" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "geschieden" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 2;
     fhir:Element.id [ fhir:value "109" ];
     fhir:CodeSystem.concept.code [ fhir:value "M" ];
     fhir:CodeSystem.concept.display [ fhir:value "Married" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Married" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "verheiratet" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 3;
     fhir:Element.id [ fhir:value "110" ];
     fhir:CodeSystem.concept.code [ fhir:value "S" ];
     fhir:CodeSystem.concept.display [ fhir:value "Single" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Single" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "allein lebend" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 4;
     fhir:Element.id [ fhir:value "111" ];
     fhir:CodeSystem.concept.code [ fhir:value "W" ];
     fhir:CodeSystem.concept.display [ fhir:value "Widowed" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Widowed" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "verwitwet" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 5;
     fhir:Element.id [ fhir:value "112" ];
     fhir:CodeSystem.concept.code [ fhir:value "C" ];
     fhir:CodeSystem.concept.display [ fhir:value "Common law" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Common law" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "eheähnliche Gemeinschaft" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 6;
     fhir:Element.id [ fhir:value "113" ];
     fhir:CodeSystem.concept.code [ fhir:value "G" ];
     fhir:CodeSystem.concept.display [ fhir:value "Living together" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Living together" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "zusammenlebend" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 7;
     fhir:Element.id [ fhir:value "114" ];
     fhir:CodeSystem.concept.code [ fhir:value "P" ];
     fhir:CodeSystem.concept.display [ fhir:value "Domestic partner" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Domestic partner" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "häuslicher Partner" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 8;
     fhir:Element.id [ fhir:value "115" ];
     fhir:CodeSystem.concept.code [ fhir:value "R" ];
     fhir:CodeSystem.concept.display [ fhir:value "Registered domestic partner" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Registered domestic partner" ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 9;
     fhir:Element.id [ fhir:value "116" ];
     fhir:CodeSystem.concept.code [ fhir:value "E" ];
     fhir:CodeSystem.concept.display [ fhir:value "Legally Separated" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Legally Separated" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "rechtskräftig getrennt" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 10;
     fhir:Element.id [ fhir:value "117" ];
     fhir:CodeSystem.concept.code [ fhir:value "N" ];
     fhir:CodeSystem.concept.display [ fhir:value "Annulled" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Annulled" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "annulliert" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 11;
     fhir:Element.id [ fhir:value "118" ];
     fhir:CodeSystem.concept.code [ fhir:value "I" ];
     fhir:CodeSystem.concept.display [ fhir:value "Interlocutory" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Interlocutory" ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 12;
     fhir:Element.id [ fhir:value "119" ];
     fhir:CodeSystem.concept.code [ fhir:value "B" ];
     fhir:CodeSystem.concept.display [ fhir:value "Unmarried" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Unmarried" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "ledig" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 13;
     fhir:Element.id [ fhir:value "120" ];
     fhir:CodeSystem.concept.code [ fhir:value "U" ];
     fhir:CodeSystem.concept.display [ fhir:value "Unknown" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Unknown" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "unbekannt" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 14;
     fhir:Element.id [ fhir:value "121" ];
     fhir:CodeSystem.concept.code [ fhir:value "O" ];
     fhir:CodeSystem.concept.display [ fhir:value "Other" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Other" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "sonstiges" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ], [
     fhir:index 15;
     fhir:Element.id [ fhir:value "122" ];
     fhir:CodeSystem.concept.code [ fhir:value "T" ];
     fhir:CodeSystem.concept.display [ fhir:value "Unreported" ];
     fhir:CodeSystem.concept.definition [ fhir:value "Unreported" ];
     fhir:CodeSystem.concept.designation [
       fhir:index 0;
       fhir:CodeSystem.concept.designation.language [ fhir:value "de" ];
       fhir:CodeSystem.concept.designation.use [
         fhir:Coding.system [ fhir:value "http://terminology.hl7.org/CodeSystem/hl7TermMaintInfra" ];
         fhir:Coding.code [ fhir:value "preferredForLanguage" ]       ];
       fhir:CodeSystem.concept.designation.value [ fhir:value "keine Angabe" ]     ];
     fhir:CodeSystem.concept.property [
       fhir:index 0;
       fhir:CodeSystem.concept.property.code [ fhir:value "status" ];
       fhir:CodeSystem.concept.property.valueCode [ fhir:value "A" ]     ]
  ]. # 

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

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