Name Flags Card. Type Description & Constraints doco
. . EncounterHistory TU DomainResource A record of significant events/milestones key data throughout the history of an Encounter

Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
. . . encounter 0..1 Reference( Encounter) The Encounter associated with this set of historic values
. . . identifier Σ 0..* Identifier Identifier(s) by which this encounter is known

. . . status ?! Σ 1..1 code planned | in-progress | on-hold | discharged | completed | cancelled | discontinued | entered-in-error | unknown
Binding: Encounter Status ( Required)
. . . class Σ 1..1 CodeableConcept Classification of patient encounter
Binding: ActEncounterCode ( Extensible)
. . . type Σ 0..* CodeableConcept Specific type of encounter
Binding: Encounter Type ( Example)

. . . serviceType Σ 0..* CodeableReference( HealthcareService) Specific type of service
Binding: Service Type ( Example)

. . . subject Σ 0..1 Reference( Patient | Group) The patient or group related to this encounter
. . . subjectStatus 0..1 CodeableConcept The current status of the subject in relation to the Encounter
Binding: Encounter Subject Status ( Example)
. . . actualPeriod 0..1 Period The actual start and end time associated with this set of values associated with the encounter
. . . plannedStartDate 0..1 dateTime The planned start date/time (or admission date) of the encounter
. . . plannedEndDate 0..1 dateTime The planned end date/time (or discharge date) of the encounter
. . . length 0..1 Duration Actual quantity of time the encounter lasted (less time absent)
. . . location 0..* BackboneElement Location of the patient at this point in the encounter

. . . . location 1..1 Reference( Location) Location the encounter takes place
. . . . form 0..1 CodeableConcept The physical type of the location (usually the level in the location hierarchy - bed, room, ward, virtual etc.)
Binding: Location Form ( Example)

doco Documentation for this format