QI-Core 6.0 modifications to assure disjoint nature from DeviceRequest and simplify the profile requirements for the Key Elements Table: QI-Core Profile-based path  **  Action Include in QI-Core 6.0 Justification DeviceRequest. implicitRules   KEEP YES   DeviceRequest.extension: doNotPerformReason   KEEP YES URL:   http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-doNotPerformReason with extensible binding to QICore Negation Reason Codes DeviceRequest. slices for modifier extension   KEEP YES   DeviceRequest. modifierExtension:doNotPerform   KEEP YES Required to be disjoint from DeviceRequest for which doNotPerform is false DeviceRequest.modifierExtension:doNotPerform. url   KEEP YES "http://hl7.org/fhir/5.0/StructureDefinition/extension-DeviceRequest.doNotPerform" DeviceRequest.modifierExtension:doNotPerform.[value [x] http://hl7.org/fhir/us/qicore/STU5/StructureDefinition-qicore-devicerequest-definitions.html#key_DeviceRequest.modifierExtension:doNotPerform.value[x]]   KEEP YES Fixed Value: true DeviceRequest. status   KEEP YES Required binding to RequestStatus DeviceRequest. intent   KEEP YES Required binding to RequestIntent DeviceRequest.[code [x] http://hl7.org/fhir/us/qicore/STU5/StructureDefinition-qicore-devicerequest-definitions.html#key_DeviceRequest.code[x]]   KEEP YES Preferred binding to FHIR Device Types DeviceRequest.code [x] .extension: doNotPerformValueSet   KEEP YES What was not done URL:   http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-notDoneValueSet DeviceRequest. subject   KEEP YES Reference to QICorePatient DeviceRequest. encounter   REMOVE NO No existing use or use case to reference encounter DeviceRequest.[occurence [x] http://hl7.org/fhir/us/qicore/STU5/StructureDefinition-qicore-devicerequest-definitions.html#key_DeviceRequest.occurrence[x]]   REMOVE NO Definition is desired time or schedule for use – no existing use case DeviceRequest. authoredOn   KEEP YES dateTime DeviceRequest. note   REMOVE NO annotation