Name	Flags	Card.	Type	Description & Constraints
Slot	TU		DomainResource	A slot of time on a schedule that may be available for booking appointments Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
identifier	Σ	0..*	Identifier	External Ids for this item
serviceCategory	Σ	0..*	CodeableConcept	A broad categorization of the service that is to be performed during this appointment Service category ( Example)
serviceType	Σ	0..*	CodeableConcept	The type of appointments that can be booked into this slot (ideally this would be an identifiable service - which is at a location, rather than the location itself). If provided then this overrides the value provided on the availability resource Service type ( Example)
specialty	Σ	0..*	CodeableConcept	The specialty of a practitioner that would be required to perform the service requested in this appointment Practice Setting Code Value Set ( Preferred)
appointmentType	Σ	0..1	CodeableConcept	The style of appointment or patient that may be booked in the slot (not service type) v2 Appointment Reason Codes ( Preferred)
schedule	Σ	1..1	Reference( Schedule)	The schedule resource that this slot defines an interval of status information
status	Σ	1..1	code	busy | free | busy-unavailable | busy-tentative | entered-in-error SlotStatus ( Required)
start	Σ	1..1	instant	Date/Time that the slot is to begin
end	Σ	1..1	instant	Date/Time that the slot is to conclude
overbooked		0..1	boolean	This slot has already been overbooked, appointments are unlikely to be accepted for this time
comment		0..1	string	Comments on the slot to describe any extended information. Such as custom constraints on the slot
Documentation for this format