Currently, we model the medication route in the INSTRUCTION.medication_order archetype. FHIR, however, places this element inside their Dosage resource. I’m struggling to understand why they would place it there, as most orders (I’d say 99% if not 100%) are for a single route or at least the same set of possible routes for all dosages/timings, while there may be a significant number of “Dosage” structures within one order.
Could we get some input from clinicians, implementers and others about this? Are there any orders where the route differs between dosages/timings? Is it a problem that we’ve structured this element differently between openEHR archetypes and FHIR resources?