This is the ValueSet that contains codes in both Triggers or Exacerbating Factor Codes (http://hl7.org/fhir/uv/symptoms/ValueSet/TriggersOrExacerbatingFactorCodes) and Triggers or Exacerbating Factor Codes (http://hl7.org/fhir/uv/symptoms/ValueSet/TriggersOrExacerbatingFactorCodes).