NameFlagsCard.TypeDescription & Constraintsdoco
.. Order ΣDomainResourceA request to perform an action
... identifier Σ0..*IdentifierIdentifiers assigned to this order by the orderer or by the receiver
... date Σ0..1dateTimeWhen the order was made
... subject Σ0..1Reference(Patient | Group | Device | Substance)Patient this order is about
... source Σ0..1Reference(Practitioner | Organization)Who initiated the order
... target Σ0..1Reference(Organization | Device | Practitioner)Who is intended to fulfill the order
... reason[x] Σ0..1Text - why the order was made
.... reasonCodeableConceptCodeableConcept
.... reasonReferenceReference(Any)
... when Σ I0..1BackboneElementWhen order should be fulfilled
Provide a code or a schedule, but not both
.... code Σ I0..1CodeableConceptCode specifies when request should be done. The code may simply be a priority code
.... schedule Σ I0..1TimingA formal schedule
... detail Σ1..*Reference(Any)What action is being ordered

doco Documentation for this format