Appointment

A booking of a healthcare event among patient(s), practitioner(s), related person(s) and/or device(s) for a specific date/time. This may result in one or more Encounter(s).

Scope and Usage

Appointment resources are used to provide information about a planned meeting that may be in the future or past. The resource only describes a single meeting, a series of repeating visits would require multiple appointment resources to be created for each instance. Examples include a scheduled surgery, a follow-up for a clinical visit, a scheduled conference call between clinicians to discuss a case (where the patient is a subject, but not a participant), the reservation of a piece of diagnostic equipment for a particular use, etc. The visit scheduled by an appointment may be in person or remote (by phone, video conference, etc.) All that matters is that the time and usage of one or more individuals, locations and/or pieces of equipment is being fully or partially reserved for a designated period of time.

This definition takes the concepts of appointments in a clinical setting and also extends them to be relevant in the community healthcare space, and to ease exposure to other appointment / calendar standards widely used outside of healthcare.

Resource content

These are different views on this resource:

This is the tree view:

PH_Appointment (Appointment)	I		Appointment	There are no (further) constraints on this element Element id Appointment Short description A booking of a healthcare event among patient(s), practitioner(s), related person(s) and/or device(s) for a specific date/time. This may result in one or more Encounter(s) Definition A booking of a healthcare event among patient(s), practitioner(s), related person(s) and/or device(s) for a specific date/time. This may result in one or more Encounter(s). Data type Appointment 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()` app-4: Cancelation reason is only used for appointments that have been cancelled, or no-show `Appointment.cancelationReason.exists() implies (Appointment.status='no-show' or Appointment.status='cancelled')` app-3: Only proposed or cancelled appointments can be missing start/end dates `(start.exists() and end.exists()) or (status in ('proposed' \| 'cancelled' \| 'waitlist'))` app-2: Either start and end are specified, or neither `start.exists() = end.exists()` Mappings rim: Entity. Role, or Act workflow: Request rim: Act[@moodCode <= 'INT'] ical: VEVENT
id	Σ	0..1	string	There are no (further) constraints on this element Element id Appointment.id Short description Logical id of this artifact Definition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. Comments The only time that a resource does not have an id is when it is being submitted to the server using a create operation. Data type string
meta	Σ	0..1	Meta	There are no (further) constraints on this element Element id Appointment.meta Short description Metadata about the resource Definition The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource. Data type Meta 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
implicitRules	Σ ?!	0..1	uri	There are no (further) constraints on this element Element id Appointment.implicitRules Short description A set of rules under which this content was created Definition A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc. Comments Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
language		0..1	codeBinding	There are no (further) constraints on this element Element id Appointment.language Short description Language of the resource content Definition The base language in which the resource is written. Comments Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute). Data type code Binding A human language. CommonLanguages (preferred) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
text		0..1	Narrative	There are no (further) constraints on this element Element id Appointment.text Short description Text summary of the resource, for human interpretation Alternate names narrative, html, xhtml, display Definition A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety. Comments Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later. Data type Narrative 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 rim: Act.text?
contained		0..*	Resource	There are no (further) constraints on this element Element id Appointment.contained Short description Contained, inline Resources Alternate names inline resources, anonymous resources, contained resources Definition These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope. Comments This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels. Data type Resource Mappings rim: Entity. Role, or Act rim: N/A
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Appointment.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) Extensions are always sliced by (at least) url 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
modifierExtension	?! I	0..*	Extension	There are no (further) constraints on this element Element id Appointment.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content Definition May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. 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) Extensions are always sliced by (at least) url 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..0	Identifier	There are no (further) constraints on this element Element id Appointment.identifier Short description External Ids for this item Definition This records identifiers associated with this appointment concern that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate (e.g. in CDA documents, or in written / printed documentation). 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 workflow: Request.identifier w5: FiveWs.identifier v2: SCH-1, SCH-2, ARQ-1, ARQ-2 rim: .id ical: UID
status	Σ ?!	1..1	codeBinding	There are no (further) constraints on this element Element id Appointment.status Short description proposed \| pending \| booked \| arrived \| fulfilled \| cancelled \| noshow \| entered-in-error \| checked-in \| waitlist Definition The overall status of the Appointment. Each of the participants has their own participation status which indicates their involvement in the process, however this status indicates the shared status. Comments If the Appointment's status is "cancelled" then all participants are expected to have their calendars released for the appointment period, and as such any Slots that were marked as BUSY can be re-set to FREE. This element is labeled as a modifier because the status contains the code entered-in-error that mark the Appointment as not currently valid. Data type code Binding The free/busy status of an appointment. AppointmentStatus (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Request.status w5: FiveWs.status v2: SCH-25 rim: .statusCode ical: STATUS
cancelationReason	Σ	0..0	CodeableConcept	There are no (further) constraints on this element Element id Appointment.cancelationReason Short description The coded reason for the appointment being cancelled Definition The coded reason for the appointment being cancelled. This is often used in reporting/billing/futher processing to determine if further actions are required, or specific fees apply. 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 AppointmentCancellationReason (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
serviceCategory	Σ	0..0	CodeableConcept	There are no (further) constraints on this element Element id Appointment.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 rim: n/a, might be inferred from the ServiceDeliveryLocation ical: CATEGORIES
serviceType	Σ	0..0	CodeableConcept	There are no (further) constraints on this element Element id Appointment.serviceType Short description The specific service that is to be performed during this appointment Definition The specific service that is to be performed during this appointment. Comments For a provider to provider appointment the code "FOLLOWUP" may be appropriate, as this is expected to be discussing some patient that was seen in the past. 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 workflow: Request.code rim: n/a, might be inferred from the ServiceDeliveryLocation
specialty	Σ	0..0	CodeableConceptBinding	There are no (further) constraints on this element Element id Appointment.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 PracticeSettingCodeValueSet (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 rim: .performer.AssignedPerson.code
appointmentType	Σ	0..0	CodeableConceptBinding	There are no (further) constraints on this element Element id Appointment.appointmentType Short description The style of appointment or patient that has been booked in the slot (not service type) Definition The style of appointment or patient that has been 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 v2: ARQ-7 rim: .code ical: CLASSIFICATION
reasonCode	Σ	0..0	CodeableConceptBinding	There are no (further) constraints on this element Element id Appointment.reasonCode Short description Coded reason this appointment is scheduled Definition The coded reason that this appointment is being scheduled. This is more clinical than administrative. 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 The Reason for the appointment to take place. EncounterReasonCodes (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 workflow: Request.reasonCode v2: AIS-3, SCH-7 rim: .reasonCode
reasonReference	I	0..0	Reference(Condition \| Procedure \| Observation \| ImmunizationRecommendation)	There are no (further) constraints on this element Element id Appointment.reasonReference Short description Reason the appointment is to take place (resource) Definition Reason the appointment has been scheduled to take place, as specified using information from another resource. When the patient arrives and the encounter begins it may be used as the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure. 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(Condition \| Procedure \| Observation \| ImmunizationRecommendation) 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) workflow: Request.reasonReference rim: .inboundRelationship[@typeCode = 'RSON'].observation
priority		0..0	unsignedInt	There are no (further) constraints on this element Element id Appointment.priority Short description Used to make informed decisions if needing to re-prioritize Definition The priority of the appointment. Can be used to make informed decisions if needing to re-prioritize appointments. (The iCal Standard specifies 0 as undefined, 1 as highest, 9 as lowest priority). Comments Seeking implementer feedback on this property and how interoperable it is. Using an extension to record a CodeableConcept for named values may be tested at a future connectathon. Data type unsignedInt Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Request.priority w5: FiveWs.class v2: ARQ-12, SCH-11.6 / TQ1-9 rim: .priorityCode ical: PRIORITY
description		0..0	string	There are no (further) constraints on this element Element id Appointment.description Short description Shown on a subject line in a meeting request, or appointment list Definition The brief description of the appointment as would be shown on a subject line in a meeting request, or appointment list. Detailed or expanded information should be put in the comment field. 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 v2: NTE-3 rim: .text ical: SUMMARY
supportingInformation	I	0..0	Reference(Resource)	There are no (further) constraints on this element Element id Appointment.supportingInformation Short description Additional information to support the appointment Definition Additional information to support the appointment provided when making the appointment. 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(Resource) 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) workflow: Request.supportingInfo w5: FiveWs.context rim: .inboundRelationship[@typeCode = 'SPRT'].observation ical: ATTACH
start	Σ	0..1	instant	There are no (further) constraints on this element Element id Appointment.start Short description When appointment is to take place Definition Date/Time that the appointment is to take place. 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 workflow: Request.occurrence[x] w5: FiveWs.init v2: ARQ-11.1, SCH-11.4 / TQ1-7 rim: .effectiveTime.low ical: DTSTART
end	Σ	0..0	instant	There are no (further) constraints on this element Element id Appointment.end Short description When appointment is to conclude Definition Date/Time that the appointment 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 workflow: Request.occurrence[x] w5: FiveWs.done[x] v2: SCH-11.5 / TQ1-8/ calculated based on the start and the duration which is in ARQ-9 rim: .effectiveTime.high ical: DTEND
minutesDuration		0..0	positiveInt	There are no (further) constraints on this element Element id Appointment.minutesDuration Short description Can be less than start/end (e.g. estimate) Definition Number of minutes that the appointment is to take. This can be less than the duration between the start and end times. For example, where the actual time of appointment is only an estimate or if a 30 minute appointment is being requested, but any time would work. Also, if there is, for example, a planned 15 minute break in the middle of a long appointment, the duration may be 15 minutes less than the difference between the start and end. Comments 32 bit number; for values larger than this, use decimal Data type positiveInt Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Request.occurrence[x] rim: .activityTime[@xsi:type = ('SXPR_TS', 'PIVL_TS')].width ical: DURATION (e.g. PT15M)
slot	I	0..0	Reference(Slot)	There are no (further) constraints on this element Element id Appointment.slot Short description The slots that this appointment is filling Definition The slots from the participants' schedules that will be filled by the appointment. 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(Slot) 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) rim: .outboundRelationship[@typeCode = 'REFR'].act[@classCode = 'ACT'][@moodCode = 'SLOT']
created		0..0	dateTime	There are no (further) constraints on this element Element id Appointment.created Short description The date that this appointment was initially created Definition The date that this appointment was initially created. This could be different to the meta.lastModified value on the initial entry, as this could have been before the resource was created on the FHIR server, and should remain unchanged over the lifespan of the appointment. Comments This property is required for many use cases where the age of an appointment is considered in processing workflows for scheduling and billing of appointments. Data type dateTime Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a workflow: Request.authoredOn rim: .author.time ical: CREATED
comment		0..0	string	There are no (further) constraints on this element Element id Appointment.comment Short description Additional comments Definition Additional comments about the appointment. Comments Additional text to aid in facilitating the appointment. For instance, a comment might be, "patient should proceed immediately to infusion room upon arrival" Where this is a planned appointment and the start/end dates are not set then this field can be used to provide additional guidance on the details of the appointment request, including any restrictions on when to book 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 workflow: Request.note v2: NTE-3 rim: .subjectOf.observation[@moodCode = 'EVN'][code = 'annotation'].value ical: DESCRIPTION (for internal use)
patientInstruction		0..0	string	There are no (further) constraints on this element Element id Appointment.patientInstruction Short description Detailed information and instructions for the patient Definition While Appointment.comment contains information for internal use, Appointment.patientInstructions is used to capture patient facing information about the Appointment (e.g. please bring your referral or fast from 8pm night before). 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 v2: NTE-3 rim: .subjectOf.observation[@moodCode = 'EVN'][code = 'annotation'].value ical: DESCRIPTION (for patient use)
basedOn	I	0..0	Reference(ServiceRequest)	There are no (further) constraints on this element Element id Appointment.basedOn Short description The service request this appointment is allocated to assess Alternate names incomingReferral Definition The service request this appointment is allocated to assess (e.g. incoming referral or procedure request). 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(ServiceRequest) 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) workflow: Request.basedOn rim: .outboundRelationship[@typeCode = 'FLFS'].act[@classCode < 'ActCareProvisionRequestType'][@moodCode = 'RQO']
participant	I	1..1	BackboneElement	There are no (further) constraints on this element Element id Appointment.participant Short description Participants involved in appointment Definition List of participants involved in the appointment. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` app-1: Either the type or actor on the participant SHALL be specified `type.exists() or actor.exists()` Mappings rim: n/a workflow: Request.performer, Request.subject v2: PID, AIP, AIG, AIL rim: performer \| reusableDevice \| subject \| location ical: ATTENDEE component to be created
id		0..1	string	There are no (further) constraints on this element Element id Appointment.participant.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Appointment.participant.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 element. 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) Extensions are always sliced by (at least) url 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
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Appointment.participant.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself). Requirements Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions. 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 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
type	Σ	0..*	CodeableConceptBinding	There are no (further) constraints on this element Element id Appointment.participant.type Short description Role of participant in the appointment Definition Role of participant in the appointment. Comments The role of the participant can be used to declare what the actor will be doing in the scope of this appointment. If the actor is not specified, then it is expected that the actor will be filled in at a later stage of planning. This value SHALL be the same when creating an AppointmentResponse so that they can be matched, and subsequently update the Appointment. Data type CodeableConcept Binding Role of participant in encounter. ParticipantType (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: AIP-4, AIG-4 rim: (performer \| reusableDevice \| subject \| location).@typeCode ical: n/a
actor	Σ I	0..1	Reference(Patient \| Practitioner \| PractitionerRole \| RelatedPerson \| Device \| HealthcareService \| Location)	There are no (further) constraints on this element Element id Appointment.participant.actor Short description Person, Location/HealthcareService or Device Definition A Person, Location/HealthcareService or Device that is participating in the appointment. 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(Patient \| Practitioner \| PractitionerRole \| RelatedPerson \| Device \| HealthcareService \| Location) 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) w5: FiveWs.who v2: PID-3-Patient ID List \| AIL-3 \| AIG-3 \| AIP-3 rim: performer.person \| reusableDevice.manufacturedDevice \| subject.patient \| location.serviceDeliveryLocation ical: ATTENDEE: (Need to provide the common name CN and also the MAILTO properties from the practitioner resource) where the participant type is not "information-only"
required	Σ	0..1	codeBinding	There are no (further) constraints on this element Element id Appointment.participant.required Short description required \| optional \| information-only Definition Whether this participant is required to be present at the meeting. This covers a use-case where two doctors need to meet to discuss the results for a specific patient, and the patient is not required to be present. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type code Binding Is the Participant required to attend the appointment. ParticipantRequired (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: (performer \| reusableDevice \| subject \| location).@performInd ical: ROLE=REQ-PARTICIPANT (roleparam)
status	Σ	1..1	codeBinding	There are no (further) constraints on this element Element id Appointment.participant.status Short description accepted \| declined \| tentative \| needs-action Definition Participation status of the actor. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type code Binding The Participation status of an appointment. ParticipationStatus (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a v2: AIP-12, AIG-14 rim: (performer \| reusableDevice \| subject \| location).statusCode ical: ATTENDEE;CN="John Doe";RSVP=TRUE:mailto:john@doe.com (rsvpparam \| partstatparam)
period	I	0..1	Period	There are no (further) constraints on this element Element id Appointment.participant.period Short description Participation period of the actor Definition Participation period of the actor. 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"]
requestedPeriod	I	0..1	Period	There are no (further) constraints on this element Element id Appointment.requestedPeriod Short description Potential date/time interval(s) requested to allocate the appointment within Definition A set of date ranges (potentially including times) that the appointment is preferred to be scheduled within. The duration (usually in minutes) could also be provided to indicate the length of the appointment to fill and populate the start/end times for the actual allocated time. However, in other situations the duration may be calculated by the scheduling system. Comments This does not introduce a capacity for recurring appointments. 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"] workflow: Request.occurrence[x] v2: ARQ-11 rim: .activityTime[@xsi:type = ('SXPR_TS', 'PIVL_TS')]

This is the detailed view:

Appointment
Definition	A booking of a healthcare event among patient(s), practitioner(s), related person(s) and/or device(s) for a specific date/time. This may result in one or more Encounter(s).
Cardinality	0...*
Invariants	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()` app-4: Cancelation reason is only used for appointments that have been cancelled, or no-show `Appointment.cancelationReason.exists() implies (Appointment.status='no-show' or Appointment.status='cancelled')` app-3: Only proposed or cancelled appointments can be missing start/end dates `(start.exists() and end.exists()) or (status in ('proposed' \| 'cancelled' \| 'waitlist'))` app-2: Either start and end are specified, or neither `start.exists() = end.exists()`
Mappings	rim: Entity. Role, or Act workflow: Request rim: Act[@moodCode <= 'INT'] ical: VEVENT
Appointment.id
Definition	The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Cardinality	0...1
Type	string
Summary	True
Comments	The only time that a resource does not have an id is when it is being submitted to the server using a create operation.
Appointment.meta
Definition	The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
Cardinality	0...1
Type	Meta
Summary	True
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a rim: N/A
Appointment.implicitRules
Definition	A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
Cardinality	0...1
Type	uri
Modifier	True
Summary	True
Comments	Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a
Appointment.language
Definition	The base language in which the resource is written.
Cardinality	0...1
Type	code
Binding	A human language. CommonLanguages (preferred)
Comments	Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a
Appointment.text
Definition	A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
Cardinality	0...1
Type	Narrative
Alias	narrative, html, xhtml, display
Comments	Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a rim: N/A rim: Act.text?
Appointment.contained
Definition	These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
Cardinality	0...*
Type	Resource
Alias	inline resources, anonymous resources, contained resources
Comments	This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.
Mappings	rim: Entity. Role, or Act rim: N/A
Appointment.extension
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.
Cardinality	0...*
Type	Extension
Alias	extensions, user content
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.
Slicing	Unordered, Open, by url(Value)
Invariants	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
Appointment.modifierExtension
Definition	May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Cardinality	0...*
Type	Extension
Modifier	True
Alias	extensions, user content
Requirements	Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
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.
Slicing	Unordered, Open, by url(Value)
Invariants	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
Appointment.identifier
Definition	This records identifiers associated with this appointment concern that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate (e.g. in CDA documents, or in written / printed documentation).
Cardinality	0...0
Type	Identifier
Summary	True
Invariants	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 workflow: Request.identifier w5: FiveWs.identifier v2: SCH-1, SCH-2, ARQ-1, ARQ-2 rim: .id ical: UID
Appointment.status
Definition	The overall status of the Appointment. Each of the participants has their own participation status which indicates their involvement in the process, however this status indicates the shared status.
Cardinality	1...1
Type	code
Binding	The free/busy status of an appointment. AppointmentStatus (required)
Modifier	True
Summary	True
Comments	If the Appointment's status is "cancelled" then all participants are expected to have their calendars released for the appointment period, and as such any Slots that were marked as BUSY can be re-set to FREE. This element is labeled as a modifier because the status contains the code entered-in-error that mark the Appointment as not currently valid.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a workflow: Request.status w5: FiveWs.status v2: SCH-25 rim: .statusCode ical: STATUS
Appointment.cancelationReason
Definition	The coded reason for the appointment being cancelled. This is often used in reporting/billing/futher processing to determine if further actions are required, or specific fees apply.
Cardinality	0...0
Type	CodeableConcept
Binding	AppointmentCancellationReason (example)
Summary	True
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.
Invariants	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
Appointment.serviceCategory
Definition	A broad categorization of the service that is to be performed during this appointment.
Cardinality	0...0
Type	CodeableConcept
Binding	ServiceCategory (example)
Summary	True
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.
Invariants	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 rim: n/a, might be inferred from the ServiceDeliveryLocation ical: CATEGORIES
Appointment.serviceType
Definition	The specific service that is to be performed during this appointment.
Cardinality	0...0
Type	CodeableConcept
Binding	ServiceType (example)
Summary	True
Comments	For a provider to provider appointment the code "FOLLOWUP" may be appropriate, as this is expected to be discussing some patient that was seen in the past.
Invariants	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 workflow: Request.code rim: n/a, might be inferred from the ServiceDeliveryLocation
Appointment.specialty
Definition	The specialty of a practitioner that would be required to perform the service requested in this appointment.
Cardinality	0...0
Type	CodeableConcept
Binding	PracticeSettingCodeValueSet (preferred)
Summary	True
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.
Invariants	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 rim: .performer.AssignedPerson.code
Appointment.appointmentType
Definition	The style of appointment or patient that has been booked in the slot (not service type).
Cardinality	0...0
Type	CodeableConcept
Binding	v2.0276 (preferred)
Summary	True
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.
Invariants	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: ARQ-7 rim: .code ical: CLASSIFICATION
Appointment.reasonCode
Definition	The coded reason that this appointment is being scheduled. This is more clinical than administrative.
Cardinality	0...0
Type	CodeableConcept
Binding	The Reason for the appointment to take place. EncounterReasonCodes (preferred)
Summary	True
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.
Invariants	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 workflow: Request.reasonCode v2: AIS-3, SCH-7 rim: .reasonCode
Appointment.reasonReference
Definition	Reason the appointment has been scheduled to take place, as specified using information from another resource. When the patient arrives and the encounter begins it may be used as the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure.
Cardinality	0...0
Type	Reference(Condition \| Procedure \| Observation \| ImmunizationRecommendation)
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.
Invariants	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) workflow: Request.reasonReference rim: .inboundRelationship[@typeCode = 'RSON'].observation
Appointment.priority
Definition	The priority of the appointment. Can be used to make informed decisions if needing to re-prioritize appointments. (The iCal Standard specifies 0 as undefined, 1 as highest, 9 as lowest priority).
Cardinality	0...0
Type	unsignedInt
Comments	Seeking implementer feedback on this property and how interoperable it is. Using an extension to record a CodeableConcept for named values may be tested at a future connectathon.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a workflow: Request.priority w5: FiveWs.class v2: ARQ-12, SCH-11.6 / TQ1-9 rim: .priorityCode ical: PRIORITY
Appointment.description
Definition	The brief description of the appointment as would be shown on a subject line in a meeting request, or appointment list. Detailed or expanded information should be put in the comment field.
Cardinality	0...0
Type	string
Comments	Note that FHIR strings SHALL NOT exceed 1MB in size
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a v2: NTE-3 rim: .text ical: SUMMARY
Appointment.supportingInformation
Definition	Additional information to support the appointment provided when making the appointment.
Cardinality	0...0
Type	Reference(Resource)
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.
Invariants	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) workflow: Request.supportingInfo w5: FiveWs.context rim: .inboundRelationship[@typeCode = 'SPRT'].observation ical: ATTACH
Appointment.start
Definition	Date/Time that the appointment is to take place.
Cardinality	0...1
Type	instant
Summary	True
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
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a workflow: Request.occurrence[x] w5: FiveWs.init v2: ARQ-11.1, SCH-11.4 / TQ1-7 rim: .effectiveTime.low ical: DTSTART
Appointment.end
Definition	Date/Time that the appointment is to conclude.
Cardinality	0...0
Type	instant
Summary	True
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
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a workflow: Request.occurrence[x] w5: FiveWs.done[x] v2: SCH-11.5 / TQ1-8/ calculated based on the start and the duration which is in ARQ-9 rim: .effectiveTime.high ical: DTEND
Appointment.minutesDuration
Definition	Number of minutes that the appointment is to take. This can be less than the duration between the start and end times. For example, where the actual time of appointment is only an estimate or if a 30 minute appointment is being requested, but any time would work. Also, if there is, for example, a planned 15 minute break in the middle of a long appointment, the duration may be 15 minutes less than the difference between the start and end.
Cardinality	0...0
Type	positiveInt
Comments	32 bit number; for values larger than this, use decimal
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a workflow: Request.occurrence[x] rim: .activityTime[@xsi:type = ('SXPR_TS', 'PIVL_TS')].width ical: DURATION (e.g. PT15M)
Appointment.slot
Definition	The slots from the participants' schedules that will be filled by the appointment.
Cardinality	0...0
Type	Reference(Slot)
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.
Invariants	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) rim: .outboundRelationship[@typeCode = 'REFR'].act[@classCode = 'ACT'][@moodCode = 'SLOT']
Appointment.created
Definition	The date that this appointment was initially created. This could be different to the meta.lastModified value on the initial entry, as this could have been before the resource was created on the FHIR server, and should remain unchanged over the lifespan of the appointment.
Cardinality	0...0
Type	dateTime
Comments	This property is required for many use cases where the age of an appointment is considered in processing workflows for scheduling and billing of appointments.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a workflow: Request.authoredOn rim: .author.time ical: CREATED
Appointment.comment
Definition	Additional comments about the appointment.
Cardinality	0...0
Type	string
Comments	Additional text to aid in facilitating the appointment. For instance, a comment might be, "patient should proceed immediately to infusion room upon arrival" Where this is a planned appointment and the start/end dates are not set then this field can be used to provide additional guidance on the details of the appointment request, including any restrictions on when to book it.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a workflow: Request.note v2: NTE-3 rim: .subjectOf.observation[@moodCode = 'EVN'][code = 'annotation'].value ical: DESCRIPTION (for internal use)
Appointment.patientInstruction
Definition	While Appointment.comment contains information for internal use, Appointment.patientInstructions is used to capture patient facing information about the Appointment (e.g. please bring your referral or fast from 8pm night before).
Cardinality	0...0
Type	string
Comments	Note that FHIR strings SHALL NOT exceed 1MB in size
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a v2: NTE-3 rim: .subjectOf.observation[@moodCode = 'EVN'][code = 'annotation'].value ical: DESCRIPTION (for patient use)
Appointment.basedOn
Definition	The service request this appointment is allocated to assess (e.g. incoming referral or procedure request).
Cardinality	0...0
Type	Reference(ServiceRequest)
Alias	incomingReferral
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.
Invariants	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) workflow: Request.basedOn rim: .outboundRelationship[@typeCode = 'FLFS'].act[@classCode < 'ActCareProvisionRequestType'][@moodCode = 'RQO']
Appointment.participant
Definition	List of participants involved in the appointment.
Cardinality	1...1
Type	BackboneElement
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` app-1: Either the type or actor on the participant SHALL be specified `type.exists() or actor.exists()`
Mappings	rim: n/a workflow: Request.performer, Request.subject v2: PID, AIP, AIG, AIL rim: performer \| reusableDevice \| subject \| location ical: ATTENDEE component to be created
Appointment.participant.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality	0...1
Type	string
Mappings	rim: n/a
Appointment.participant.extension
Definition	May be used to represent additional information that is not part of the basic definition of the element. 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.
Cardinality	0...*
Type	Extension
Alias	extensions, user content
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.
Slicing	Unordered, Open, by url(Value)
Invariants	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
Appointment.participant.modifierExtension
Definition	May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Cardinality	0...*
Type	Extension
Modifier	True
Summary	True
Alias	extensions, user content, modifiers
Requirements	Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.
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.
Invariants	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
Appointment.participant.type
Definition	Role of participant in the appointment.
Cardinality	0...*
Type	CodeableConcept
Binding	Role of participant in encounter. ParticipantType (extensible)
Summary	True
Comments	The role of the participant can be used to declare what the actor will be doing in the scope of this appointment. If the actor is not specified, then it is expected that the actor will be filled in at a later stage of planning. This value SHALL be the same when creating an AppointmentResponse so that they can be matched, and subsequently update the Appointment.
Invariants	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: AIP-4, AIG-4 rim: (performer \| reusableDevice \| subject \| location).@typeCode ical: n/a
Appointment.participant.actor
Definition	A Person, Location/HealthcareService or Device that is participating in the appointment.
Cardinality	0...1
Type	Reference(Patient \| Practitioner \| PractitionerRole \| RelatedPerson \| Device \| HealthcareService \| Location)
Summary	True
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.
Invariants	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) w5: FiveWs.who v2: PID-3-Patient ID List \| AIL-3 \| AIG-3 \| AIP-3 rim: performer.person \| reusableDevice.manufacturedDevice \| subject.patient \| location.serviceDeliveryLocation ical: ATTENDEE: (Need to provide the common name CN and also the MAILTO properties from the practitioner resource) where the participant type is not "information-only"
Appointment.participant.required
Definition	Whether this participant is required to be present at the meeting. This covers a use-case where two doctors need to meet to discuss the results for a specific patient, and the patient is not required to be present.
Cardinality	0...1
Type	code
Binding	Is the Participant required to attend the appointment. ParticipantRequired (required)
Summary	True
Comments	Note that FHIR strings SHALL NOT exceed 1MB in size
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a rim: (performer \| reusableDevice \| subject \| location).@performInd ical: ROLE=REQ-PARTICIPANT (roleparam)
Appointment.participant.status
Definition	Participation status of the actor.
Cardinality	1...1
Type	code
Binding	The Participation status of an appointment. ParticipationStatus (required)
Summary	True
Comments	Note that FHIR strings SHALL NOT exceed 1MB in size
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a v2: AIP-12, AIG-14 rim: (performer \| reusableDevice \| subject \| location).statusCode ical: ATTENDEE;CN="John Doe";RSVP=TRUE:mailto:john@doe.com (rsvpparam \| partstatparam)
Appointment.participant.period
Definition	Participation period of the actor.
Cardinality	0...1
Type	Period
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.
Invariants	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"]
Appointment.requestedPeriod
Definition	A set of date ranges (potentially including times) that the appointment is preferred to be scheduled within. The duration (usually in minutes) could also be provided to indicate the length of the appointment to fill and populate the start/end times for the actual allocated time. However, in other situations the duration may be calculated by the scheduling system.
Cardinality	0...1
Type	Period
Comments	This does not introduce a capacity for recurring appointments.
Invariants	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"] workflow: Request.occurrence[x] v2: ARQ-11 rim: .activityTime[@xsi:type = ('SXPR_TS', 'PIVL_TS')]

This is the resource in XML:

<StructureDefinition xmlns="http://hl7.org/fhir">
    <url value="https://example.org/fhir/StructureDefinition/PH_Appointment" />
    <name value="PH_Appointment" />
    <status value="draft" />
    <fhirVersion value="4.0.1" />
    <kind value="resource" />
    <abstract value="false" />
    <type value="Appointment" />
    <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Appointment" />
    <derivation value="constraint" />
    <differential>
        <element id="Appointment.identifier">
            <path value="Appointment.identifier" />
            <max value="0" />
        </element>
        <element id="Appointment.cancelationReason">
            <path value="Appointment.cancelationReason" />
            <max value="0" />
        </element>
        <element id="Appointment.serviceCategory">
            <path value="Appointment.serviceCategory" />
            <max value="0" />
        </element>
        <element id="Appointment.serviceType">
            <path value="Appointment.serviceType" />
            <max value="0" />
        </element>
        <element id="Appointment.specialty">
            <path value="Appointment.specialty" />
            <max value="0" />
        </element>
        <element id="Appointment.appointmentType">
            <path value="Appointment.appointmentType" />
            <max value="0" />
        </element>
        <element id="Appointment.reasonCode">
            <path value="Appointment.reasonCode" />
            <max value="0" />
        </element>
        <element id="Appointment.reasonReference">
            <path value="Appointment.reasonReference" />
            <max value="0" />
        </element>
        <element id="Appointment.priority">
            <path value="Appointment.priority" />
            <max value="0" />
        </element>
        <element id="Appointment.description">
            <path value="Appointment.description" />
            <max value="0" />
        </element>
        <element id="Appointment.supportingInformation">
            <path value="Appointment.supportingInformation" />
            <max value="0" />
        </element>
        <element id="Appointment.end">
            <path value="Appointment.end" />
            <max value="0" />
        </element>
        <element id="Appointment.minutesDuration">
            <path value="Appointment.minutesDuration" />
            <max value="0" />
        </element>
        <element id="Appointment.slot">
            <path value="Appointment.slot" />
            <max value="0" />
        </element>
        <element id="Appointment.created">
            <path value="Appointment.created" />
            <max value="0" />
        </element>
        <element id="Appointment.comment">
            <path value="Appointment.comment" />
            <max value="0" />
        </element>
        <element id="Appointment.patientInstruction">
            <path value="Appointment.patientInstruction" />
            <max value="0" />
        </element>
        <element id="Appointment.basedOn">
            <path value="Appointment.basedOn" />
            <max value="0" />
        </element>
        <element id="Appointment.participant">
            <path value="Appointment.participant" />
            <max value="1" />
        </element>
        <element id="Appointment.requestedPeriod">
            <path value="Appointment.requestedPeriod" />
            <max value="1" />
        </element>
    </differential>
</StructureDefinition>

This is the resource in JSON:

{
    "resourceType": "StructureDefinition",
    "url": "https://example.org/fhir/StructureDefinition/PH_Appointment",
    "name": "PH_Appointment",
    "status": "draft",
    "fhirVersion": "4.0.1",
    "kind": "resource",
    "abstract": false,
    "type": "Appointment",
    "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Appointment",
    "derivation": "constraint",
    "differential": {
        "element":  [
            {
                "id": "Appointment.identifier",
                "path": "Appointment.identifier",
                "max": "0"
            },
            {
                "id": "Appointment.cancelationReason",
                "path": "Appointment.cancelationReason",
                "max": "0"
            },
            {
                "id": "Appointment.serviceCategory",
                "path": "Appointment.serviceCategory",
                "max": "0"
            },
            {
                "id": "Appointment.serviceType",
                "path": "Appointment.serviceType",
                "max": "0"
            },
            {
                "id": "Appointment.specialty",
                "path": "Appointment.specialty",
                "max": "0"
            },
            {
                "id": "Appointment.appointmentType",
                "path": "Appointment.appointmentType",
                "max": "0"
            },
            {
                "id": "Appointment.reasonCode",
                "path": "Appointment.reasonCode",
                "max": "0"
            },
            {
                "id": "Appointment.reasonReference",
                "path": "Appointment.reasonReference",
                "max": "0"
            },
            {
                "id": "Appointment.priority",
                "path": "Appointment.priority",
                "max": "0"
            },
            {
                "id": "Appointment.description",
                "path": "Appointment.description",
                "max": "0"
            },
            {
                "id": "Appointment.supportingInformation",
                "path": "Appointment.supportingInformation",
                "max": "0"
            },
            {
                "id": "Appointment.end",
                "path": "Appointment.end",
                "max": "0"
            },
            {
                "id": "Appointment.minutesDuration",
                "path": "Appointment.minutesDuration",
                "max": "0"
            },
            {
                "id": "Appointment.slot",
                "path": "Appointment.slot",
                "max": "0"
            },
            {
                "id": "Appointment.created",
                "path": "Appointment.created",
                "max": "0"
            },
            {
                "id": "Appointment.comment",
                "path": "Appointment.comment",
                "max": "0"
            },
            {
                "id": "Appointment.patientInstruction",
                "path": "Appointment.patientInstruction",
                "max": "0"
            },
            {
                "id": "Appointment.basedOn",
                "path": "Appointment.basedOn",
                "max": "0"
            },
            {
                "id": "Appointment.participant",
                "path": "Appointment.participant",
                "max": "1"
            },
            {
                "id": "Appointment.requestedPeriod",
                "path": "Appointment.requestedPeriod",
                "max": "1"
            }
        ]
    }
}

PH_Appointment