NameFlagsCard.TypeDescription & Constraintsdoco
.. Basic ΣDomainResourceResource for non-supported content
... identifier Σ0..*IdentifierBusiness identifier
... code ?! Σ1..1CodeableConceptKind of Resource
Basic Resource Types (Example)
... subject Σ0..1Reference(Any)Identifies the focus of this resource
... author Σ0..1Reference(Practitioner | Patient | RelatedPerson)Who created
... created Σ0..1dateWhen created

doco Documentation for this format