identifierΣ0..*Identifier
statusΣ ?!1..1codeBinding
codeΣ1..1CodeableConceptBinding
severityΣ0..1codeBinding
patientΣ1..1Reference(Patient)
authorΣ0..1Reference(Practitioner | PractitionerRole | Device)
implicatedΣ0..*Reference(Resource)
detail0..1string
reference0..1uri