This is the ValueSet that contains all the codes in Non-Negative MedicationAdministration Status (http://hl7.org/fhir/us/qicore/ValueSet/qicore-non-negative-medication-admin-status) and Medication administration status codes (http://hl7.org/fhir/ValueSet/medication-admin-status). E.g. what you have to deal with if you get resources containing codes in either of them