private Concept setupConcept(ConceptService mockConceptService, String name, String mappingCode) {
   Concept concept = new Concept();
   concept.addName(new ConceptName(name, Locale.ENGLISH));
   concept.addConceptMapping(
       new ConceptMap(new ConceptReferenceTerm(emrConceptSource, mappingCode, null), sameAs));
   when(mockConceptService.getConceptByMapping(mappingCode, emrConceptSource.getName()))
       .thenReturn(concept);
   return concept;
 }