FHIR DSTU3 issue

[Brycert]

Hello,

Our organization just went from DSTU2 to DSTU3. In the DSTU2 version the encounter object has a method "class_" that accepts an enumeration of consisting of states of the patient such as "Inpatient", "Outpatient","Ambulatory", etc... The DSTU3 version has modified the class_ method to take a Coding object that consists of a CodeID(string) and DisplayText (string). So the question is, with the enumeration gone, how are the states to be persisted in this Coding object? We certainly cannot rely on a string for determining state as there may be a plethora of fat fingered patient states hydrating the object.