This is the ValueSet that contains all the codes in eHDSI Condition Present on Admission (http://terminology.ehdsi.eu/ValueSet/eHDSIConditionPOA) and eHDSI Condition Present on Admission (http://terminology.ehdsi.eu/ValueSet/eHDSIConditionPOA). E.g. what you have to deal with if you get resources containing codes in either of them