This is the ValueSet that contains all the codes in x_ActClassDocumentEntryOrganizer (http://terminology.hl7.org/ValueSet/v3-xActClassDocumentEntryOrganizer) and x_ActClassDocumentEntryOrganizer (http://terminology.hl7.org/ValueSet/v3-xActClassDocumentEntryOrganizer). E.g. what you have to deal with if you get resources containing codes in either of them