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Type:
Change Request
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Resolution: Not Persuasive
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Priority:
Medium
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FHIR Core (FHIR)
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R4
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FHIR Infrastructure
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Event Pattern
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Jose Costa Teixeira/John Hatem: 5-0-0
When resolving FHIR-20913 we determined that the .status in a DeviceUseStatement (an Event) should not be mixed with documenting whether the use statement describes a "non-event", e.g., "I am not wearing a hearing aid now". Rather, this should be described separately, while the DeviceUseStatement is still considered active, entered-in-error or other reasonable statuses.
We suggest to add to the Event Pattern two new fields, primarily applicable to UseStatements/Usages resources.
Event.usageStatus 0..1 CodeableConcept, example values: always, sometimes, never, usually
EventUseStatement.usageReason 0..* CodeableConcept, example values: forgot, lost, stolen, broken, the dog ate it.
We ask that other UseStatement/Usage resources similarly disambiguate the difference between status and usageStatus.