This is the ValueSet that contains codes in both US Public Health TriggerDefinition NamedEvent (http://hl7.org/fhir/us/ecr/ValueSet/us-ph-triggerdefinition-namedevent) and US Public Health TriggerDefinition NamedEvent (http://hl7.org/fhir/us/ecr/ValueSet/us-ph-triggerdefinition-namedevent).