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This version of the UK Core is for C&TA Sprint 7 Review.
This version is not suitable for implementation. Other versions are available on the UK Core Version History Guide
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StructureDefinition-UKCore-Slot

Canonical_URL	Current_Version	Last_Updated	Description
https://fhir.hl7.org.uk/StructureDefinition/UKCore-Slot	1.2.0	2022-12-16	This profile defines the UK constraints and extensions on the International FHIR resource Slot.

Profile_Purpose
Slot resources are used to provide time-slots that can be booked using an appointment. They do not provide any information about appointments that are available, just the time, and optionally what the time can be used for. These are effectively spaces of free/busy time. Slots can also be marked as busy without having appointments associated.

Slot	I		Slot	There are no (further) constraints on this element Element Id Slot Short description 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. Data Type Slot Constraints dom-2:If the resource is contained in another resource, it SHALL NOT contain nested Resources `contained.contained.empty()` dom-4:If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()` dom-3:If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource `contained.where((('#'+id in (%resource.descendants().reference \| %resource.descendants().as(canonical) \| %resource.descendants().as(uri) \| %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()` dom-6:A resource should have narrative for robust management text.`div`.exists() dom-5:If a resource is contained in another resource, it SHALL NOT have a security label `contained.meta.security.empty()` Mappings rim:Entity. Role, or Act rim:n/a ical:(refer to the Availability resource for the header mapping details)
extension	I	0..*	Extension	Element Id Slot.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data Type Extension Sliced: Unordered, Open, by url(Value) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1:Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim:n/a rim:N/A
deliveryChannel	I	0..1	Extension(code)	Element Id Slot.extension:deliveryChannel Short description An extension to record the delivery channel of a scheduled Appointment Alternate names extensions, user content Definition An extension to record the delivery channel of a scheduled Appointment. Comments There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. Data Type Extension(code) Extension URL https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-DeliveryChannel Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ext-1:Must have either extensions or value[x], not both `extension.exists() != value.exists()` Mappings rim:n/a rim:N/A
identifier	Σ	0..*	Identifier	There are no (further) constraints on this element Element Id Slot.identifier Short description External Ids for this item Definition External Ids for this item. Data Type Identifier Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CX / EI (occasionally, more often EI maps to a resource id or a URL) rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd:Identifier w5:FiveWs.identifier
use	Σ ?!	0..1	codeBinding	There are no (further) constraints on this element Element Id Slot.identifier.use Short description usual \| official \| temp \| secondary \| old (If known) Definition The purpose of this identifier. Requirements Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Comments Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Data Type code Binding Identifies the purpose for this identifier, if known . IdentifierUse (required) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:N/A rim:Role.code or implied by context
type	Σ	0..1	CodeableConceptBinding	There are no (further) constraints on this element Element Id Slot.identifier.type Short description Description of identifier Definition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Requirements Allows users to make use of identifiers when the identifier system is not known. Comments This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. Data Type CodeableConcept Binding A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE/CNE/CWE rim:CD orim:fhir:CodeableConcept rdfs:subClassOf dt:CD v2:CX.5 rim:Role.code or implied by context
system	Σ	0..1	uri	There are no (further) constraints on this element Element Id Slot.identifier.system Short description The namespace for the identifier value Definition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. Requirements There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Comments Identifier.system is always case sensitive. Data Type uri Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Examples General http://www.acme.com/identifiers/patient Mappings rim:n/a v2:CX.4 / EI-2-4 rim:II.root or Role.id.root servd:./IdentifierType
value	Σ	0..1	string	There are no (further) constraints on this element Element Id Slot.identifier.value Short description The value that is unique Definition The portion of the identifier typically relevant to the user and which is unique within the context of the system. Comments If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. Data Type string Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Examples General 123456 Mappings rim:n/a v2:CX.1 / EI.1 rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root) servd:./Value
period	Σ I	0..1	Period	There are no (further) constraints on this element Element Id Slot.identifier.period Short description Time period when id is/was valid for use Definition Time period during which identifier is/was valid for use. Comments A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). Period is not used for a duration (a measure of elapsed time). See Duration. Data Type Period Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` per-1:If present, start SHALL have a lower value than end `start.hasValue().not() or end.hasValue().not() or (start <= end)` Mappings rim:n/a v2:DR rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"] v2:CX.7 + CX.8 rim:Role.effectiveTime or implied by context servd:./StartDate and ./EndDate
assigner	Σ I	0..1	Reference(UK Core Organization)	Element Id Slot.identifier.assigner Short description Organization that issued id (may be just text) Definition Organization that issued/manages the identifier. Comments The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. Data Type Reference(UK Core Organization) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ref-1:SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))` Mappings rim:n/a rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity) v2:CX.4 / (CX.4,CX.9,CX.10) rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper servd:./IdentifierIssuingAuthority
serviceCategory	Σ	0..*	CodeableConcept	There are no (further) constraints on this element Element Id Slot.serviceCategory Short description 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. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data Type CodeableConcept Binding ServiceCategory (example) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE/CNE/CWE rim:CD orim:fhir:CodeableConcept rdfs:subClassOf dt:CD w5:FiveWs.class
serviceType	Σ	0..*	CodeableConcept	There are no (further) constraints on this element Element Id Slot.serviceType Short description 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 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 availability resource. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data Type CodeableConcept Binding ServiceType (example) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE/CNE/CWE rim:CD orim:fhir:CodeableConcept rdfs:subClassOf dt:CD w5:FiveWs.class
specialty	Σ	0..*	CodeableConceptBinding	Element Id Slot.specialty Short description 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. Comments Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data Type CodeableConcept Binding Additional details about where the content was created (e.g. clinical specialty). UKCorePracticeSettingCode (extensible) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE/CNE/CWE rim:CD orim:fhir:CodeableConcept rdfs:subClassOf dt:CD w5:FiveWs.class
appointmentType	Σ	0..1	CodeableConceptBinding	There are no (further) constraints on this element Element Id Slot.appointmentType Short description 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 Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination. Data Type CodeableConcept Binding v2.0276 (preferred) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE/CNE/CWE rim:CD orim:fhir:CodeableConcept rdfs:subClassOf dt:CD w5:FiveWs.class
schedule	Σ I	1..1	Reference(UK Core Schedule)	Element Id Slot.schedule Short description 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. Comments References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository. Data Type Reference(UK Core Schedule) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ref-1:SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))` Mappings rim:n/a rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
reference	Σ I	0..1	string	There are no (further) constraints on this element Element Id Slot.schedule.reference Short description Literal reference, Relative, internal or absolute URL Definition A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Comments Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server. Data Type string Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a rim:N/A
type	Σ	0..1	uriBinding	There are no (further) constraints on this element Element Id Slot.schedule.type Short description Type the reference refers to (e.g. "Patient") Definition The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). Comments This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified. Data Type uri Binding Aa resource (or, for logical models, the URI of the logical model). ResourceType (extensible) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a rim:N/A
identifier	Σ	0..1	Identifier	There are no (further) constraints on this element Element Id Slot.schedule.identifier Short description Logical reference, when literal reference is not known Definition An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. Comments When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation\|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any). Data Type Identifier Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CX / EI (occasionally, more often EI maps to a resource id or a URL) rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT] servd:Identifier rim:.identifier
use	Σ ?!	0..1	codeBinding	There are no (further) constraints on this element Element Id Slot.schedule.identifier.use Short description usual \| official \| temp \| secondary \| old (If known) Definition The purpose of this identifier. Requirements Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Comments Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. Data Type code Binding Identifies the purpose for this identifier, if known . IdentifierUse (required) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:N/A rim:Role.code or implied by context
type	Σ	0..1	CodeableConceptBinding	There are no (further) constraints on this element Element Id Slot.schedule.identifier.type Short description Description of identifier Definition A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Requirements Allows users to make use of identifiers when the identifier system is not known. Comments This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type. Data Type CodeableConcept Binding A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. Identifier Type Codes (extensible) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a v2:CE/CNE/CWE rim:CD orim:fhir:CodeableConcept rdfs:subClassOf dt:CD v2:CX.5 rim:Role.code or implied by context
system	Σ	0..1	uri	There are no (further) constraints on this element Element Id Slot.schedule.identifier.system Short description The namespace for the identifier value Definition Establishes the namespace for the value - that is, a URL that describes a set values that are unique. Requirements There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Comments Identifier.system is always case sensitive. Data Type uri Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Examples General http://www.acme.com/identifiers/patient Mappings rim:n/a v2:CX.4 / EI-2-4 rim:II.root or Role.id.root servd:./IdentifierType
value	Σ	0..1	string	There are no (further) constraints on this element Element Id Slot.schedule.identifier.value Short description The value that is unique Definition The portion of the identifier typically relevant to the user and which is unique within the context of the system. Comments If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe. Data Type string Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Examples General 123456 Mappings rim:n/a v2:CX.1 / EI.1 rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root) servd:./Value
period	Σ I	0..1	Period	There are no (further) constraints on this element Element Id Slot.schedule.identifier.period Short description Time period when id is/was valid for use Definition Time period during which identifier is/was valid for use. Comments A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). Period is not used for a duration (a measure of elapsed time). See Duration. Data Type Period Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` per-1:If present, start SHALL have a lower value than end `start.hasValue().not() or end.hasValue().not() or (start <= end)` Mappings rim:n/a v2:DR rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"] v2:CX.7 + CX.8 rim:Role.effectiveTime or implied by context servd:./StartDate and ./EndDate
assigner	Σ I	0..1	Reference(UK Core Organization)	Element Id Slot.schedule.identifier.assigner Short description Organization that issued id (may be just text) Definition Organization that issued/manages the identifier. Comments The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization. Data Type Reference(UK Core Organization) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` ref-1:SHALL have a contained resource if a local reference is provided `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))` Mappings rim:n/a rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity) v2:CX.4 / (CX.4,CX.9,CX.10) rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper servd:./IdentifierIssuingAuthority
display	Σ	0..1	string	There are no (further) constraints on this element Element Id Slot.schedule.display Short description Text alternative for the resource Definition Plain text narrative that identifies the resource in addition to the resource reference. Comments This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it. Data Type string Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a rim:N/A
status	Σ	1..1	codeBinding	There are no (further) constraints on this element Element Id Slot.status Short description busy \| free \| busy-unavailable \| busy-tentative \| entered-in-error Definition busy \| free \| busy-unavailable \| busy-tentative \| entered-in-error. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data Type code Binding The free/busy status of the slot. SlotStatus (required) Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a ical:FREEBUSY;FBTYPE=(freeBusyType):19980314T233000Z/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded
start	Σ	1..1	instant	There are no (further) constraints on this element Element Id Slot.start Short description Date/Time that the slot is to begin Definition Date/Time that the slot is to begin. Comments Note: This is intended for where precisely observed times are required, typically system logs etc., and not human-reported times - for them, see date and dateTime (which can be as precise as instant, but is not required to be) below. Time zone is always required Data Type instant Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a w5:FiveWs.planned ical:FREEBUSY;FBTYPE=FREE:(start)/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded
end	Σ	1..1	instant	There are no (further) constraints on this element Element Id Slot.end Short description Date/Time that the slot is to conclude Definition Date/Time that the slot is to conclude. Comments Note: This is intended for where precisely observed times are required, typically system logs etc., and not human-reported times - for them, see date and dateTime (which can be as precise as instant, but is not required to be) below. Time zone is always required Data Type instant Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a w5:FiveWs.planned ical:FREEBUSY:19980314T233000Z/(end) If the freeBusyType is BUSY, then this value can be excluded (as shown)
overbooked		0..1	boolean	There are no (further) constraints on this element Element Id Slot.overbooked Short description 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 When Missing If overbooked is missing, systems may assume that there are still appointments available Data Type boolean Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a
comment		0..1	string	There are no (further) constraints on this element Element Id Slot.comment Short description 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. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data Type string Constraints ele-1:All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim:n/a

Table View

Slot		..
Slot.extension		0..
Slot.extension	Extension	0..1
Slot.identifier		..
Slot.identifier.assigner	Reference(UK Core Organization)	..
Slot.specialty		..
Slot.schedule	Reference(UK Core Schedule)	..
Slot.schedule.identifier		..
Slot.schedule.identifier.assigner	Reference(UK Core Organization)	..

XML View

<StructureDefinition xmlns="http://hl7.org/fhir">
    <id value="UKCore-Slot" />
    <url value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-Slot" />
    <version value="1.2.0" />
    <name value="UKCoreSlot" />
    <title value="UK Core Slot" />
    <status value="active" />
    <date value="2022-12-16" />
    <publisher value="HL7 UK" />
    <contact>
        <name value="HL7 UK" />
        <telecom>
            <system value="email" />
            <value value="ukcore@hl7.org.uk" />
            <use value="work" />
            <rank value="1" />
        </telecom>
    </contact>
    <description value="This profile defines the UK constraints and extensions on the International FHIR resource [Slot](https://hl7.org/fhir/R4/Slot.html)." />
    <purpose value="Slot resources are used to provide time-slots that can be booked using an appointment. They do not provide any information about appointments that are available, just the time, and optionally what the time can be used for. These are effectively spaces of free/busy time.\nSlots can also be marked as busy without having appointments associated." />
    <copyright value="Copyright &#169; 2021+ HL7 UK Licensed under the Apache License, Version 2.0 (the &quot;License&quot;); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7&#174; FHIR&#174; standard Copyright &#169; 2011+ HL7 The HL7&#174; FHIR&#174; standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html." />
    <fhirVersion value="4.0.1" />
    <mapping>
        <identity value="rim" />
        <uri value="http://hl7.org/v3" />
        <name value="RIM Mapping" />
    </mapping>
    <mapping>
        <identity value="ical" />
        <uri value="http://ietf.org/rfc/2445" />
        <name value="iCalendar" />
    </mapping>
    <mapping>
        <identity value="w5" />
        <uri value="http://hl7.org/fhir/fivews" />
        <name value="FiveWs Pattern Mapping" />
    </mapping>
    <kind value="resource" />
    <abstract value="false" />
    <type value="Slot" />
    <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Slot" />
    <derivation value="constraint" />
    <differential>
        <element id="Slot.extension">
            <path value="Slot.extension" />
            <slicing>
                <discriminator>
                    <type value="value" />
                    <path value="url" />
                </discriminator>
                <rules value="open" />
            </slicing>
            <min value="0" />
        </element>
        <element id="Slot.extension:deliveryChannel">
            <path value="Slot.extension" />
            <sliceName value="deliveryChannel" />
            <min value="0" />
            <max value="1" />
            <type>
                <code value="Extension" />
                <profile value="https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-DeliveryChannel" />
            </type>
            <isModifier value="false" />
        </element>
        <element id="Slot.identifier.assigner">
            <path value="Slot.identifier.assigner" />
            <type>
                <code value="Reference" />
                <targetProfile value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization" />
            </type>
        </element>
        <element id="Slot.specialty">
            <path value="Slot.specialty" />
            <binding>
                <strength value="extensible" />
                <valueSet value="https://fhir.hl7.org.uk/ValueSet/UKCore-PracticeSettingCode" />
            </binding>
        </element>
        <element id="Slot.schedule">
            <path value="Slot.schedule" />
            <type>
                <code value="Reference" />
                <targetProfile value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-Schedule" />
            </type>
        </element>
        <element id="Slot.schedule.identifier.assigner">
            <path value="Slot.schedule.identifier.assigner" />
            <type>
                <code value="Reference" />
                <targetProfile value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization" />
            </type>
        </element>
    </differential>
</StructureDefinition>

JSON View

{
    "resourceType": "StructureDefinition",
    "id": "UKCore-Slot",
    "url": "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Slot",
    "version": "1.2.0",
    "name": "UKCoreSlot",
    "title": "UK Core Slot",
    "status": "active",
    "date": "2022-12-16",
    "publisher": "HL7 UK",
    "contact":  [
        {
            "name": "HL7 UK",
            "telecom":  [
                {
                    "system": "email",
                    "value": "ukcore@hl7.org.uk",
                    "use": "work",
                    "rank": 1
                }
            ]
        }
    ],
    "description": "This profile defines the UK constraints and extensions on the International FHIR resource [Slot](https://hl7.org/fhir/R4/Slot.html).",
    "purpose": "Slot resources are used to provide time-slots that can be booked using an appointment. They do not provide any information about appointments that are available, just the time, and optionally what the time can be used for. These are effectively spaces of free/busy time.\nSlots can also be marked as busy without having appointments associated.",
    "copyright": "Copyright © 2021+ HL7 UK Licensed under the Apache License, Version 2.0 (the \"License\"); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7® FHIR® standard Copyright © 2011+ HL7 The HL7® FHIR® standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html.",
    "fhirVersion": "4.0.1",
    "mapping":  [
        {
            "identity": "rim",
            "uri": "http://hl7.org/v3",
            "name": "RIM Mapping"
        },
        {
            "identity": "ical",
            "uri": "http://ietf.org/rfc/2445",
            "name": "iCalendar"
        },
        {
            "identity": "w5",
            "uri": "http://hl7.org/fhir/fivews",
            "name": "FiveWs Pattern Mapping"
        }
    ],
    "kind": "resource",
    "abstract": false,
    "type": "Slot",
    "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Slot",
    "derivation": "constraint",
    "differential": {
        "element":  [
            {
                "id": "Slot.extension",
                "path": "Slot.extension",
                "slicing": {
                    "discriminator":  [
                        {
                            "type": "value",
                            "path": "url"
                        }
                    ],
                    "rules": "open"
                },
                "min": 0
            },
            {
                "id": "Slot.extension:deliveryChannel",
                "path": "Slot.extension",
                "sliceName": "deliveryChannel",
                "min": 0,
                "max": "1",
                "type":  [
                    {
                        "code": "Extension",
                        "profile":  [
                            "https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-DeliveryChannel"
                        ]
                    }
                ],
                "isModifier": false
            },
            {
                "id": "Slot.identifier.assigner",
                "path": "Slot.identifier.assigner",
                "type":  [
                    {
                        "code": "Reference",
                        "targetProfile":  [
                            "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization"
                        ]
                    }
                ]
            },
            {
                "id": "Slot.specialty",
                "path": "Slot.specialty",
                "binding": {
                    "strength": "extensible",
                    "valueSet": "https://fhir.hl7.org.uk/ValueSet/UKCore-PracticeSettingCode"
                }
            },
            {
                "id": "Slot.schedule",
                "path": "Slot.schedule",
                "type":  [
                    {
                        "code": "Reference",
                        "targetProfile":  [
                            "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Schedule"
                        ]
                    }
                ]
            },
            {
                "id": "Slot.schedule.identifier.assigner",
                "path": "Slot.schedule.identifier.assigner",
                "type":  [
                    {
                        "code": "Reference",
                        "targetProfile":  [
                            "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization"
                        ]
                    }
                ]
            }
        ]
    }
}

Examples

Available Walk In Visit - An example to illustrate a slot regarding a walk in visit.
Example UKCore-Slot-AvailableWalkInVisit

Usage

This Profile has the following derived profiles:

This Profile is referenced in the following Extensions:

This Profile is referenced in the following Profiles:

id	targetProfile
UKCore-Appointment	https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Condition; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Procedure; http://hl7.org/fhir/StructureDefinition/ImmunizationRecommendation; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Slot; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization; https://fhir.hl7.org.uk/StructureDefinition/UKCore-ServiceRequest; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Patient; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Practitioner; https://fhir.hl7.org.uk/StructureDefinition/UKCore-PractitionerRole; https://fhir.hl7.org.uk/StructureDefinition/UKCore-RelatedPerson; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Device; https://fhir.hl7.org.uk/StructureDefinition/UKCore-HealthcareService; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Location; https://fhir.hl7.org.uk/StructureDefinition/UKCore-Organization

targetProfile

UKCore-Appointment

Example Usage Scenarios

The following are example usage scenarios for the UK Core Slot profile:

Query for slot information from a given schedule
Exchange slot information within a FHIR document or message.

Profile Specific Implementation Guidance:

Minimum Viable Content

A minimum viable content that all provider and consumer systems SHALL support are the following elements.

Element	Reason
`Slot.specialty`	The specialty of a practitioner that would be required to perform the service requested in this appointment.
`Slot.appointmentType`	The style of appointment or patient that may be booked in the slot.
`Slot.status`	The status of the slot, e.g free, busy, etc.
`Slot.start`	Date/Time that the slot is to begin.
`Slot.end`	Date/Time that the slot is to conclude.

Extensions

More information about the extensions can be found using the links below.

Extension	Context	Link	Comment
deliveryChannel	Slot	Extension UKCore-DeliveryChannel

Bindings (differential)

More information about the bindings to UK Core ValueSets can be found below.

Context	Strength	Link
Slot.extension:deliveryChannel	Extensible	ValueSet UKCore-DeliveryChannel
Slot.specialty	Extensible	ValueSet UKCore-PracticeSettingCode

`schedule`

The resource being referenced SHALL conform to the Profile UKCore-Schedule.