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