This case-sensitive code system http://hl7.org/fhir/uv/sdc/CodeSystem/launchContext defines the following codes:
Code
Display
Definition
patient
Patient
Patient in context at launch time (FHIR Patient resource). There can be at most 1 resource passed in for this context.
encounter
Encounter
Encounter context at launch time (FHIR Encounter resource). There can be at most 1 resource passed in for this context.
location
Location
Location context at launch time (FHIR Location resource). There can be at most 1 resource passed in for this context.
user
User
User in context at launch time (FHIR Device, PractitionerRole, Practitioner, RelatedPerson, Organization or Patient resource). There can be at most 1 resource passed in for this context.
study
ResearchStudy
ResearchStudy in context at launch time (FHIR ResearchStudy resource). There can be at most 1 resource passed in for this context.
clinical
Clinical
Indicates the current clinical resource being manipulated or reviewed by the user launching the Questionnaire. Common uses included 'current diagnostic report', 'current diagnostic image', 'current order', etc. In a situation where multiple clinical resources are being reviewed simultaneously, there could be multiple resources passed in as context. (i.e. the 'clinical' variable set in the FHIRPath engine will be a collection.)