> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metriport.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Slot

> A slot of time on a schedule that may be available for booking appointments.

## Properties

| Name            | Required | Type                                                               | Description                                                                                                                                                                                                                                           |
| --------------- | -------- | ------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| identifier      | No       | [Identifier](/medical-api/fhir/data-types/identifier)\[]           | External Ids for this item                                                                                                                                                                                                                            |
| serviceCategory | No       | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)\[] | A broad categorization of the service that is to be performed during this appointment                                                                                                                                                                 |
| serviceType     | No       | [CodeableConcept](/medical-api/fhir/data-types/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 |
| specialty       | No       | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)\[] | The specialty of a practitioner that would be required to perform the service requested in this appointment                                                                                                                                           |
| appointmentType | No       | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)    | The style of appointment or patient that may be booked in the slot (not service type)                                                                                                                                                                 |
| schedule        | Yes      | Reference\<[Schedule](/medical-api/fhir/resources/schedule)>       | The schedule resource that this slot defines an interval of status information                                                                                                                                                                        |
| status          | Yes      | code                                                               | busy / free / busy-unavailable / busy-tentative / entered-in-error                                                                                                                                                                                    |
| start           | Yes      | instant                                                            | Date/Time that the slot is to begin                                                                                                                                                                                                                   |
| end             | Yes      | instant                                                            | Date/Time that the slot is to conclude                                                                                                                                                                                                                |
| overbooked      | No       | boolean                                                            | This slot has already been overbooked, appointments are unlikely to be accepted for this time                                                                                                                                                         |
| comment         | No       | string                                                             | Comments on the slot to describe any extended information. Such as custom constraints on the slot                                                                                                                                                     |

## Search Parameters

| Name             | Type      | Description                                                                                                 | Expression           |
| ---------------- | --------- | ----------------------------------------------------------------------------------------------------------- | -------------------- |
| appointment-type | token     | The style of appointment or patient that may be booked in the slot (not service type)                       | Slot.appointmentType |
| identifier       | token     | A Slot Identifier                                                                                           | Slot.identifier      |
| schedule         | reference | The Schedule Resource that we are seeking a slot within                                                     | Slot.schedule        |
| service-category | token     | A broad categorization of the service that is to be performed during this appointment                       | Slot.serviceCategory |
| service-type     | token     | The type of appointments that can be booked into the slot                                                   | Slot.serviceType     |
| specialty        | token     | The specialty of a practitioner that would be required to perform the service requested in this appointment | Slot.specialty       |
| start            | date      | Appointment date/time.                                                                                      | Slot.start           |
| status           | token     | The free/busy status of the appointment                                                                     | Slot.status          |

## Inherited Properties

| Name              | Required | Type                                                   | Description                                            |
| ----------------- | -------- | ------------------------------------------------------ | ------------------------------------------------------ |
| id                | No       | string                                                 | Logical id of this artifact                            |
| meta              | No       | [Meta](/medical-api/fhir/data-types/meta)              | Metadata about the resource                            |
| implicitRules     | No       | uri                                                    | A set of rules under which this content was created    |
| language          | No       | code                                                   | Language of the resource content                       |
| text              | No       | [Narrative](/medical-api/fhir/data-types/narrative)    | Text summary of the resource, for human interpretation |
| contained         | No       | Resource\[]                                            | Contained, inline Resources                            |
| extension         | No       | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations          |
| modifierExtension | No       | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored                      |

To view the FHIR specification for this resource, see [Slot](https://www.hl7.org/fhir/StructureDefinition/Slot).