docs: private ConceptDefinitionComponent getCodeDefinition(ConceptDefinitionComponent c, String code) {
  		if (code.equals(c.getCode()))
  			return c;
  		for (ConceptDefinitionComponent g : c.getConcept()) {
  			ConceptDefinitionComponent r = getCodeDefinition(g, code);
  			if (r != null)
  				return r;
  		}
  		return null;
  	}