This is the ValueSet that contains codes in both ActRelationshipPassiveImmunizationAgainst (http://terminology.hl7.org/ValueSet/v3-ActRelationshipPassiveImmunizationAgainst) and ActRelationshipPassiveImmunizationAgainst (http://terminology.hl7.org/ValueSet/v3-ActRelationshipPassiveImmunizationAgainst).