This is the ValueSet that contains all the codes in DaVinci Attribution List Status (http://hl7.org/fhir/us/davinci-atr/ValueSet/atr-attribution-list-status) and DaVinci Attribution List Status (http://hl7.org/fhir/us/davinci-atr/ValueSet/atr-attribution-list-status). E.g. what you have to deal with if you get resources containing codes in either of them