This is the ValueSet that contains all the codes in Death date Information Source (https://nzhts.digital.health.nz/fhir/ValueSet/dod-information-source-code) and Death date Information Source (https://nzhts.digital.health.nz/fhir/ValueSet/dod-information-source-code). E.g. what you have to deal with if you get resources containing codes in either of them