Concomitant Disease Category CodeSystem - TTL Representation - PROTECT-CHILD Pediatric Transplant Data Implementation Guide v0.1.0-ci-build

PROTECT-CHILD Pediatric Transplant Data Implementation Guide, published by Protect Child. This guide is not an authorized publication; it is the continuous build for version 0.1.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/protect-child/ and changes regularly. See the Directory of published versions
: Concomitant Disease Category CodeSystem - TTL Representation

Draft as of 2026-08-11
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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 -------------------------------------------------------------------

<http://hl7.org/fhir/CodeSystem/concomitant-disease-category> a fhir:CodeSystem ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:Resource.id [ fhir:value "concomitant-disease-category"] ;
  fhir:DomainResource.text [
     fhir:Narrative.status [ fhir:value "generated" ] ;
     fhir:Narrative.div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem concomitant-disease-category</b></p><a name=\"concomitant-disease-category\"> </a><a name=\"hcconcomitant-disease-category\"> </a><p>This case-insensitive code system <code>https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/concomitant-disease-category</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td></tr><tr><td style=\"white-space:nowrap\">abdominal-pain<a name=\"concomitant-disease-category-abdominal-pain\"> </a></td><td>Abdominal pain</td></tr><tr><td style=\"white-space:nowrap\">abpm<a name=\"concomitant-disease-category-abpm\"> </a></td><td>ABPM</td></tr><tr><td style=\"white-space:nowrap\">altered-consciousness<a name=\"concomitant-disease-category-altered-consciousness\"> </a></td><td>Altered consciousness</td></tr><tr><td style=\"white-space:nowrap\">ascites<a name=\"concomitant-disease-category-ascites\"> </a></td><td>Ascites</td></tr><tr><td style=\"white-space:nowrap\">cholangitis<a name=\"concomitant-disease-category-cholangitis\"> </a></td><td>Cholangitis</td></tr><tr><td style=\"white-space:nowrap\">concomitant-autoimmune-disorder<a name=\"concomitant-disease-category-concomitant-autoimmune-disorder\"> </a></td><td>Concomitant autoimmune disorder</td></tr><tr><td style=\"white-space:nowrap\">concomitant-pancreatic-disease<a name=\"concomitant-disease-category-concomitant-pancreatic-disease\"> </a></td><td>Concomitant pancreatic disease</td></tr><tr><td style=\"white-space:nowrap\">diabetes<a name=\"concomitant-disease-category-diabetes\"> </a></td><td>Diabetes</td></tr><tr><td style=\"white-space:nowrap\">diarrhea<a name=\"concomitant-disease-category-diarrhea\"> </a></td><td>Diarrhea</td></tr><tr><td style=\"white-space:nowrap\">edema<a name=\"concomitant-disease-category-edema\"> </a></td><td>Edema</td></tr><tr><td style=\"white-space:nowrap\">epistaxis<a name=\"concomitant-disease-category-epistaxis\"> </a></td><td>Epistaxis</td></tr><tr><td style=\"white-space:nowrap\">ercp<a name=\"concomitant-disease-category-ercp\"> </a></td><td>ERCP</td></tr><tr><td style=\"white-space:nowrap\">fatigue<a name=\"concomitant-disease-category-fatigue\"> </a></td><td>Fatigue</td></tr><tr><td style=\"white-space:nowrap\">fever<a name=\"concomitant-disease-category-fever\"> </a></td><td>Fever</td></tr><tr><td style=\"white-space:nowrap\">gingival-hyperplasia<a name=\"concomitant-disease-category-gingival-hyperplasia\"> </a></td><td>Gingival hyperplasia</td></tr><tr><td style=\"white-space:nowrap\">glucose-intolerance<a name=\"concomitant-disease-category-glucose-intolerance\"> </a></td><td>Glucose intolerance</td></tr><tr><td style=\"white-space:nowrap\">headache<a name=\"concomitant-disease-category-headache\"> </a></td><td>Headache</td></tr><tr><td style=\"white-space:nowrap\">hepatic-artery-thrombosis<a name=\"concomitant-disease-category-hepatic-artery-thrombosis\"> </a></td><td>Hepatic Artery Thrombosis</td></tr><tr><td style=\"white-space:nowrap\">hepatic-encephalopathy<a name=\"concomitant-disease-category-hepatic-encephalopathy\"> </a></td><td>Hepatic encephalopathy</td></tr><tr><td style=\"white-space:nowrap\">hepatic-insufficiency<a name=\"concomitant-disease-category-hepatic-insufficiency\"> </a></td><td>Hepatic insufficiency</td></tr><tr><td style=\"white-space:nowrap\">hepatomegaly<a name=\"concomitant-disease-category-hepatomegaly\"> </a></td><td>Hepatomegaly</td></tr><tr><td style=\"white-space:nowrap\">hepatopulmonary-syndrome<a name=\"concomitant-disease-category-hepatopulmonary-syndrome\"> </a></td><td>Hepatopulmonary syndrome</td></tr><tr><td style=\"white-space:nowrap\">hepatorenal-syndrome<a name=\"concomitant-disease-category-hepatorenal-syndrome\"> </a></td><td>Hepatorenal syndrome</td></tr><tr><td style=\"white-space:nowrap\">hirsutism<a name=\"concomitant-disease-category-hirsutism\"> </a></td><td>Hirsutism</td></tr><tr><td style=\"white-space:nowrap\">hypertensive-retinopathy<a name=\"concomitant-disease-category-hypertensive-retinopathy\"> </a></td><td>Hypertensive retinopathy</td></tr><tr><td style=\"white-space:nowrap\">hypertension<a name=\"concomitant-disease-category-hypertension\"> </a></td><td>Hypertension</td></tr><tr><td style=\"white-space:nowrap\">hypertriglyceridemia<a name=\"concomitant-disease-category-hypertriglyceridemia\"> </a></td><td>Hypertrigliceridemia</td></tr><tr><td style=\"white-space:nowrap\">hypoxic-ischemic-injury<a name=\"concomitant-disease-category-hypoxic-ischemic-injury\"> </a></td><td>Hypoxic Ischemic Injury</td></tr><tr><td style=\"white-space:nowrap\">itching<a name=\"concomitant-disease-category-itching\"> </a></td><td>Itching</td></tr><tr><td style=\"white-space:nowrap\">jaundice<a name=\"concomitant-disease-category-jaundice\"> </a></td><td>Jaundice</td></tr><tr><td style=\"white-space:nowrap\">kidney-tma<a name=\"concomitant-disease-category-kidney-tma\"> </a></td><td>Kidney TMA</td></tr><tr><td style=\"white-space:nowrap\">left-ventricular-hypertrophy<a name=\"concomitant-disease-category-left-ventricular-hypertrophy\"> </a></td><td>Left ventricular hypetrophy</td></tr><tr><td style=\"white-space:nowrap\">lymphadenopathy<a name=\"concomitant-disease-category-lymphadenopathy\"> </a></td><td>Lymphadenopathy</td></tr><tr><td style=\"white-space:nowrap\">macrohematuria<a name=\"concomitant-disease-category-macrohematuria\"> </a></td><td>Macrohematuria</td></tr><tr><td style=\"white-space:nowrap\">malaise<a name=\"concomitant-disease-category-malaise\"> </a></td><td>Malaise</td></tr><tr><td style=\"white-space:nowrap\">nausea<a name=\"concomitant-disease-category-nausea\"> </a></td><td>Nausea</td></tr><tr><td style=\"white-space:nowrap\">neurological-symptoms<a name=\"concomitant-disease-category-neurological-symptoms\"> </a></td><td>Neurological symptoms</td></tr><tr><td style=\"white-space:nowrap\">oligoanuria<a name=\"concomitant-disease-category-oligoanuria\"> </a></td><td>Oligoanuria</td></tr><tr><td style=\"white-space:nowrap\">oral-ulcers<a name=\"concomitant-disease-category-oral-ulcers\"> </a></td><td>Oral Ulcers</td></tr><tr><td style=\"white-space:nowrap\">pale-stools<a name=\"concomitant-disease-category-pale-stools\"> </a></td><td>Pale stools</td></tr><tr><td style=\"white-space:nowrap\">ptcd<a name=\"concomitant-disease-category-ptcd\"> </a></td><td>PTCD</td></tr><tr><td style=\"white-space:nowrap\">rash<a name=\"concomitant-disease-category-rash\"> </a></td><td>Rash</td></tr><tr><td style=\"white-space:nowrap\">seizures<a name=\"concomitant-disease-category-seizures\"> </a></td><td>Seizures</td></tr><tr><td style=\"white-space:nowrap\">spider-veins<a name=\"concomitant-disease-category-spider-veins\"> </a></td><td>Spider veins</td></tr><tr><td style=\"white-space:nowrap\">splenomegaly<a name=\"concomitant-disease-category-splenomegaly\"> </a></td><td>Splenomegaly</td></tr><tr><td style=\"white-space:nowrap\">stomatitis<a name=\"concomitant-disease-category-stomatitis\"> </a></td><td>Stomatitis</td></tr><tr><td style=\"white-space:nowrap\">uremia<a name=\"concomitant-disease-category-uremia\"> </a></td><td>Uremia</td></tr><tr><td style=\"white-space:nowrap\">uretheral-stenosis<a name=\"concomitant-disease-category-uretheral-stenosis\"> </a></td><td>Uretheral stenosis</td></tr><tr><td style=\"white-space:nowrap\">visual-disturbance<a name=\"concomitant-disease-category-visual-disturbance\"> </a></td><td>Visual Disturbance</td></tr><tr><td style=\"white-space:nowrap\">vomiting<a name=\"concomitant-disease-category-vomiting\"> </a></td><td>Vomiting</td></tr><tr><td style=\"white-space:nowrap\">weight-loss<a name=\"concomitant-disease-category-weight-loss\"> </a></td><td>Weight loss</td></tr><tr><td style=\"white-space:nowrap\">monoclonal-proliferation-biopsy<a name=\"concomitant-disease-category-monoclonal-proliferation-biopsy\"> </a></td><td>Monoclonal proliferation on biopsy</td></tr><tr><td style=\"white-space:nowrap\">histological-evidence-biopsy<a name=\"concomitant-disease-category-histological-evidence-biopsy\"> </a></td><td>Histological evidence on biopsy</td></tr><tr><td style=\"white-space:nowrap\">mmf-related-enteropathy<a name=\"concomitant-disease-category-mmf-related-enteropathy\"> </a></td><td>Histological evidence of MMF-related enteropathy</td></tr></table></div>"
  ] ;
  fhir:CodeSystem.url [ fhir:value "https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/concomitant-disease-category"] ;
  fhir:CodeSystem.version [ fhir:value "0.1.0-ci-build"] ;
  fhir:CodeSystem.name [ fhir:value "ConcomitantDiseaseCategory"] ;
  fhir:CodeSystem.title [ fhir:value "Concomitant Disease Category CodeSystem"] ;
  fhir:CodeSystem.status [ fhir:value "draft"] ;
  fhir:CodeSystem.experimental [ fhir:value "true"^^xsd:boolean] ;
  fhir:CodeSystem.date [ fhir:value "2026-08-11T12:50:29+00:00"^^xsd:dateTime] ;
  fhir:CodeSystem.publisher [ fhir:value "Protect Child"] ;
  fhir:CodeSystem.contact [
     fhir:index 0 ;
     fhir:ContactDetail.name [ fhir:value "Protect Child" ] ;
     fhir:ContactDetail.telecom [
       fhir:index 0 ;
       fhir:ContactPoint.system [ fhir:value "url" ] ;
       fhir:ContactPoint.value [ fhir:value "https://protect-child.eu/" ]
     ]
  ] ;
  fhir:CodeSystem.description [ fhir:value "Concomitant disease codes used in the DMv1.2 clinical_variable table. Coded values are carried as ClinicalVariable Observation components (component[concomitant_disease])."] ;
  fhir:CodeSystem.caseSensitive [ fhir:value "false"^^xsd:boolean] ;
  fhir:CodeSystem.content [ fhir:value "complete"] ;
  fhir:CodeSystem.count [ fhir:value "54"^^xsd:nonNegativeInteger] ;
  fhir:CodeSystem.concept [
     fhir:index 0 ;
     fhir:CodeSystem.concept.code [ fhir:value "abdominal-pain" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Abdominal pain" ]
  ], [
     fhir:index 1 ;
     fhir:CodeSystem.concept.code [ fhir:value "abpm" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "ABPM" ]
  ], [
     fhir:index 2 ;
     fhir:CodeSystem.concept.code [ fhir:value "altered-consciousness" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Altered consciousness" ]
  ], [
     fhir:index 3 ;
     fhir:CodeSystem.concept.code [ fhir:value "ascites" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Ascites" ]
  ], [
     fhir:index 4 ;
     fhir:CodeSystem.concept.code [ fhir:value "cholangitis" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Cholangitis" ]
  ], [
     fhir:index 5 ;
     fhir:CodeSystem.concept.code [ fhir:value "concomitant-autoimmune-disorder" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Concomitant autoimmune disorder" ]
  ], [
     fhir:index 6 ;
     fhir:CodeSystem.concept.code [ fhir:value "concomitant-pancreatic-disease" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Concomitant pancreatic disease" ]
  ], [
     fhir:index 7 ;
     fhir:CodeSystem.concept.code [ fhir:value "diabetes" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Diabetes" ]
  ], [
     fhir:index 8 ;
     fhir:CodeSystem.concept.code [ fhir:value "diarrhea" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Diarrhea" ]
  ], [
     fhir:index 9 ;
     fhir:CodeSystem.concept.code [ fhir:value "edema" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Edema" ]
  ], [
     fhir:index 10 ;
     fhir:CodeSystem.concept.code [ fhir:value "epistaxis" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Epistaxis" ]
  ], [
     fhir:index 11 ;
     fhir:CodeSystem.concept.code [ fhir:value "ercp" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "ERCP" ]
  ], [
     fhir:index 12 ;
     fhir:CodeSystem.concept.code [ fhir:value "fatigue" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Fatigue" ]
  ], [
     fhir:index 13 ;
     fhir:CodeSystem.concept.code [ fhir:value "fever" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Fever" ]
  ], [
     fhir:index 14 ;
     fhir:CodeSystem.concept.code [ fhir:value "gingival-hyperplasia" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Gingival hyperplasia" ]
  ], [
     fhir:index 15 ;
     fhir:CodeSystem.concept.code [ fhir:value "glucose-intolerance" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Glucose intolerance" ]
  ], [
     fhir:index 16 ;
     fhir:CodeSystem.concept.code [ fhir:value "headache" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Headache" ]
  ], [
     fhir:index 17 ;
     fhir:CodeSystem.concept.code [ fhir:value "hepatic-artery-thrombosis" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hepatic Artery Thrombosis" ]
  ], [
     fhir:index 18 ;
     fhir:CodeSystem.concept.code [ fhir:value "hepatic-encephalopathy" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hepatic encephalopathy" ]
  ], [
     fhir:index 19 ;
     fhir:CodeSystem.concept.code [ fhir:value "hepatic-insufficiency" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hepatic insufficiency" ]
  ], [
     fhir:index 20 ;
     fhir:CodeSystem.concept.code [ fhir:value "hepatomegaly" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hepatomegaly" ]
  ], [
     fhir:index 21 ;
     fhir:CodeSystem.concept.code [ fhir:value "hepatopulmonary-syndrome" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hepatopulmonary syndrome" ]
  ], [
     fhir:index 22 ;
     fhir:CodeSystem.concept.code [ fhir:value "hepatorenal-syndrome" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hepatorenal syndrome" ]
  ], [
     fhir:index 23 ;
     fhir:CodeSystem.concept.code [ fhir:value "hirsutism" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hirsutism" ]
  ], [
     fhir:index 24 ;
     fhir:CodeSystem.concept.code [ fhir:value "hypertensive-retinopathy" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hypertensive retinopathy" ]
  ], [
     fhir:index 25 ;
     fhir:CodeSystem.concept.code [ fhir:value "hypertension" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hypertension" ]
  ], [
     fhir:index 26 ;
     fhir:CodeSystem.concept.code [ fhir:value "hypertriglyceridemia" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hypertrigliceridemia" ]
  ], [
     fhir:index 27 ;
     fhir:CodeSystem.concept.code [ fhir:value "hypoxic-ischemic-injury" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Hypoxic Ischemic Injury" ]
  ], [
     fhir:index 28 ;
     fhir:CodeSystem.concept.code [ fhir:value "itching" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Itching" ]
  ], [
     fhir:index 29 ;
     fhir:CodeSystem.concept.code [ fhir:value "jaundice" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Jaundice" ]
  ], [
     fhir:index 30 ;
     fhir:CodeSystem.concept.code [ fhir:value "kidney-tma" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Kidney TMA" ]
  ], [
     fhir:index 31 ;
     fhir:CodeSystem.concept.code [ fhir:value "left-ventricular-hypertrophy" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Left ventricular hypetrophy" ]
  ], [
     fhir:index 32 ;
     fhir:CodeSystem.concept.code [ fhir:value "lymphadenopathy" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Lymphadenopathy" ]
  ], [
     fhir:index 33 ;
     fhir:CodeSystem.concept.code [ fhir:value "macrohematuria" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Macrohematuria" ]
  ], [
     fhir:index 34 ;
     fhir:CodeSystem.concept.code [ fhir:value "malaise" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Malaise" ]
  ], [
     fhir:index 35 ;
     fhir:CodeSystem.concept.code [ fhir:value "nausea" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Nausea" ]
  ], [
     fhir:index 36 ;
     fhir:CodeSystem.concept.code [ fhir:value "neurological-symptoms" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Neurological symptoms" ]
  ], [
     fhir:index 37 ;
     fhir:CodeSystem.concept.code [ fhir:value "oligoanuria" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Oligoanuria" ]
  ], [
     fhir:index 38 ;
     fhir:CodeSystem.concept.code [ fhir:value "oral-ulcers" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Oral Ulcers" ]
  ], [
     fhir:index 39 ;
     fhir:CodeSystem.concept.code [ fhir:value "pale-stools" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Pale stools" ]
  ], [
     fhir:index 40 ;
     fhir:CodeSystem.concept.code [ fhir:value "ptcd" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "PTCD" ]
  ], [
     fhir:index 41 ;
     fhir:CodeSystem.concept.code [ fhir:value "rash" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Rash" ]
  ], [
     fhir:index 42 ;
     fhir:CodeSystem.concept.code [ fhir:value "seizures" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Seizures" ]
  ], [
     fhir:index 43 ;
     fhir:CodeSystem.concept.code [ fhir:value "spider-veins" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Spider veins" ]
  ], [
     fhir:index 44 ;
     fhir:CodeSystem.concept.code [ fhir:value "splenomegaly" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Splenomegaly" ]
  ], [
     fhir:index 45 ;
     fhir:CodeSystem.concept.code [ fhir:value "stomatitis" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Stomatitis" ]
  ], [
     fhir:index 46 ;
     fhir:CodeSystem.concept.code [ fhir:value "uremia" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Uremia" ]
  ], [
     fhir:index 47 ;
     fhir:CodeSystem.concept.code [ fhir:value "uretheral-stenosis" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Uretheral stenosis" ]
  ], [
     fhir:index 48 ;
     fhir:CodeSystem.concept.code [ fhir:value "visual-disturbance" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Visual Disturbance" ]
  ], [
     fhir:index 49 ;
     fhir:CodeSystem.concept.code [ fhir:value "vomiting" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Vomiting" ]
  ], [
     fhir:index 50 ;
     fhir:CodeSystem.concept.code [ fhir:value "weight-loss" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Weight loss" ]
  ], [
     fhir:index 51 ;
     fhir:CodeSystem.concept.code [ fhir:value "monoclonal-proliferation-biopsy" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Monoclonal proliferation on biopsy" ]
  ], [
     fhir:index 52 ;
     fhir:CodeSystem.concept.code [ fhir:value "histological-evidence-biopsy" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Histological evidence on biopsy" ]
  ], [
     fhir:index 53 ;
     fhir:CodeSystem.concept.code [ fhir:value "mmf-related-enteropathy" ] ;
     fhir:CodeSystem.concept.display [ fhir:value "Histological evidence of MMF-related enteropathy" ]
  ] .

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

<http://hl7.org/fhir/CodeSystem/concomitant-disease-category.ttl> a owl:Ontology ;
  owl:imports fhir:fhir.ttl ;
  owl:versionIRI <http://build.fhir.org/CodeSystem/concomitant-disease-category.ttl> .