This is the ValueSet that contains all the codes in NHI-健保NGS-系統回應訊息值集 (https://nhicore.nhi.gov.tw/ngs/ValueSet/nhi-operationoutcome) and NHI-健保NGS-系統回應訊息值集 (https://nhicore.nhi.gov.tw/ngs/ValueSet/nhi-operationoutcome). E.g. what you have to deal with if you get resources containing codes in either of them