NameFlagsCard.TypeDescription & Constraintsdoco
.. MedicationRequest 0..*US Core Medication Request Profile
... status S1..1codeBinding: MedicationRequestStatus (required)
... medication[x] S1..1CodeableConcept, Reference(US Core Medication Profile)Binding: Medication Clinical Drug (RxNorm) (extensible)
... subject S1..1Reference(US Core Patient Profile)
... authoredOn S1..1dateTime
... requester S1..1BackboneElement
.... agent S1..1Reference(US Core Practitioner)

doco Documentation for this format