---
type: "resource-definitions"
title: "Slot Definitions"
resource: "Slot"
---

# Slot Definitions

<a id="Slot"></a>

## Slot
A slot of time on a schedule that may be available for booking appointments

**Definition:** A slot of time on a schedule that may be available for booking appointments.

**Cardinality:** 0..*

**Mappings:** rim=n/a; ical=(refer to the Schedule resource for the header mapping details); w5=workflow.scheduling


<a id="Slot.identifier"></a>

## Slot.identifier
External Ids for this item

**Definition:** External Ids for this item.

**Cardinality:** 0..*

**Type:** [Identifier](/Identifier)

**Summary:** true

**Mappings:** w5=FiveWs.identifier


<a id="Slot.serviceCategory"></a>

## Slot.serviceCategory
A broad categorization of the service that is to be performed during this appointment

**Definition:** A broad categorization of the service that is to be performed during this appointment.

**Cardinality:** 0..*

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[service-category](/valueset-service-category)

**Summary:** true

**Mappings:** w5=FiveWs.class


<a id="Slot.serviceType"></a>

## Slot.serviceType
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 Schedule resource

**Definition:** 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 Schedule resource.

**Cardinality:** 0..*

**Type:** [CodeableReference](/CodeableReference)

**Binding:** example:[service-type](/valueset-service-type)

**Summary:** true

**Mappings:** w5=FiveWs.class


<a id="Slot.specialty"></a>

## Slot.specialty
The specialty of a practitioner that would be required to perform the service requested in this appointment

**Definition:** The specialty of a practitioner that would be required to perform the service requested in this appointment.

**Cardinality:** 0..*

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** example:[c80-practice-codes](/valueset-c80-practice-codes)

**Summary:** true

**Mappings:** w5=FiveWs.class


<a id="Slot.appointmentType"></a>

## Slot.appointmentType
The style of appointment or patient that may be booked in the slot (not service type)

**Definition:** The style of appointment or patient that may be booked in the slot (not service type).

**Comments:** A slot may be allow multiple appointment types, but when booked, would only be used for one of the given appointment types.

**Cardinality:** 0..*

**Type:** [CodeableConcept](/CodeableConcept)

**Binding:** preferred:[v2-0276](/valueset-v2-0276)

**Summary:** true

**Mappings:** w5=FiveWs.class


<a id="Slot.schedule"></a>

## Slot.schedule
The schedule resource that this slot defines an interval of status information

**Definition:** The schedule resource that this slot defines an interval of status information.

**Cardinality:** 1..1

**Type:** Reference([Schedule](/Schedule))

**Summary:** true


<a id="Slot.status"></a>

## Slot.status
busy | free | busy-unavailable | busy-tentative | entered-in-error

**Definition:** busy | free | busy-unavailable | busy-tentative | entered-in-error.

**Cardinality:** 1..1

**Type:** [code](/code)

**Binding:** required:[slotstatus](/valueset-slotstatus)

**Summary:** true

**Mappings:** ical=FREEBUSY;FBTYPE=(freeBusyType):19980314T233000Z/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded


<a id="Slot.start"></a>

## Slot.start
Date/Time that the slot is to begin

**Definition:** Date/Time that the slot is to begin.

**Cardinality:** 1..1

**Type:** [instant](/instant)

**Summary:** true

**Mappings:** w5=FiveWs.planned; ical=FREEBUSY;FBTYPE=FREE:(start)/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded


<a id="Slot.end"></a>

## Slot.end
Date/Time that the slot is to conclude

**Definition:** Date/Time that the slot is to conclude.

**Cardinality:** 1..1

**Type:** [instant](/instant)

**Summary:** true

**Mappings:** w5=FiveWs.planned; ical=FREEBUSY:19980314T233000Z/(end) If the freeBusyType is BUSY, then this value can be excluded (as shown)


<a id="Slot.overbooked"></a>

## Slot.overbooked
This slot has already been overbooked, appointments are unlikely to be accepted for this time

**Definition:** This slot has already been overbooked, appointments are unlikely to be accepted for this time.

**Meaning if Missing:** If overbooked is missing, systems may assume that there are still appointments available

**Cardinality:** 0..1

**Type:** [boolean](/boolean)


<a id="Slot.comment"></a>

## Slot.comment
Comments on the slot to describe any extended information. Such as custom constraints on the slot

**Definition:** Comments on the slot to describe any extended information. Such as custom constraints on the slot.

**Cardinality:** 0..1

**Type:** [string](/string)