This is the ValueSet that contains all the codes in WHO Disease or Agent Targeted (COVID-19) (http://smart.who.int/ddcc/ValueSet/WHODDCCDiseaseTargetedCOVID19) and WHO Disease or Agent Targeted (COVID-19) (http://smart.who.int/ddcc/ValueSet/WHODDCCDiseaseTargetedCOVID19). E.g. what you have to deal with if you get resources containing codes in either of them