This is the ValueSet that contains all the codes in CRD Task Reason Codes Value Set (http://hl7.org/fhir/us/davinci-crd/ValueSet/taskReason) and CRD Task Reason Codes Value Set (http://hl7.org/fhir/us/davinci-crd/ValueSet/taskReason). E.g. what you have to deal with if you get resources containing codes in either of them