# publisher
Health Level Seven International (Patient Administration)

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

# snapshot.element[].short
A slot of time on a schedule that may be available for booking appointments

# snapshot.element[].definition
A slot of time on a schedule that may be available for booking appointments.

# snapshot.element[].constraint[].human
If the resource is contained in another resource, it SHALL NOT contain nested Resources

# snapshot.element[].constraint[].human
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

# snapshot.element[].constraint[].human
If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated

# snapshot.element[].constraint[].human
If a resource is contained in another resource, it SHALL NOT have a security label

# snapshot.element[].constraint[].extension[].valueMarkdown
When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time.

# snapshot.element[].constraint[].human
A resource should have narrative for robust management

# snapshot.element[].mapping[].map
(refer to the Availability resource for the header mapping details)

# snapshot.element[].definition
The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

# snapshot.element[].comment
The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

# snapshot.element[].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.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
A set of rules under which this content was created

# snapshot.element[].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.

# snapshot.element[].comment
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.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].isModifierReason
This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation

# snapshot.element[].definition
The base language in which the resource is written.

# snapshot.element[].comment
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).

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
Text summary of the resource, for human interpretation

# snapshot.element[].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.

# snapshot.element[].comment
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.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].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.

# snapshot.element[].comment
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.

# snapshot.element[].short
Additional content defined by implementations

# snapshot.element[].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.

# snapshot.element[].comment
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.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# snapshot.element[].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).

# snapshot.element[].comment
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.

# snapshot.element[].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](extensibility.html#modifierExtension).

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# snapshot.element[].isModifierReason
Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
A broad categorization of the service that is to be performed during this appointment

# snapshot.element[].definition
A broad categorization of the service that is to be performed during this appointment.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
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

# snapshot.element[].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.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
The specialty of a practitioner that would be required to perform the service requested in this appointment

# snapshot.element[].definition
The specialty of a practitioner that would be required to perform the service requested in this appointment.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].binding.description
Additional details about where the content was created (e.g. clinical specialty).

# snapshot.element[].short
The style of appointment or patient that may be booked in the slot (not service type)

# snapshot.element[].definition
The style of appointment or patient that may be booked in the slot (not service type).

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
The schedule resource that this slot defines an interval of status information

# snapshot.element[].definition
The schedule resource that this slot defines an interval of status information.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
busy | free | busy-unavailable | busy-tentative | entered-in-error

# snapshot.element[].definition
busy | free | busy-unavailable | busy-tentative | entered-in-error.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].mapping[].map
FREEBUSY;FBTYPE=(freeBusyType):19980314T233000Z/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].mapping[].map
FREEBUSY;FBTYPE=FREE:(start)/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].mapping[].map
FREEBUSY:19980314T233000Z/(end) If the freeBusyType is BUSY, then this value can be excluded (as shown)

# snapshot.element[].short
This slot has already been overbooked, appointments are unlikely to be accepted for this time

# snapshot.element[].definition
This slot has already been overbooked, appointments are unlikely to be accepted for this time.

# snapshot.element[].meaningWhenMissing
If overbooked is missing, systems may assume that there are still appointments available

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# snapshot.element[].short
Comments on the slot to describe any extended information. Such as custom constraints on the slot

# snapshot.element[].definition
Comments on the slot to describe any extended information. Such as custom constraints on the slot.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# differential.element[].short
A slot of time on a schedule that may be available for booking appointments

# differential.element[].definition
A slot of time on a schedule that may be available for booking appointments.

# differential.element[].mapping[].map
(refer to the Availability resource for the header mapping details)

# differential.element[].short
A broad categorization of the service that is to be performed during this appointment

# differential.element[].definition
A broad categorization of the service that is to be performed during this appointment.

# differential.element[].short
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

# differential.element[].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.

# differential.element[].short
The specialty of a practitioner that would be required to perform the service requested in this appointment

# differential.element[].definition
The specialty of a practitioner that would be required to perform the service requested in this appointment.

# differential.element[].binding.description
Additional details about where the content was created (e.g. clinical specialty).

# differential.element[].short
The style of appointment or patient that may be booked in the slot (not service type)

# differential.element[].definition
The style of appointment or patient that may be booked in the slot (not service type).

# differential.element[].short
The schedule resource that this slot defines an interval of status information

# differential.element[].definition
The schedule resource that this slot defines an interval of status information.

# differential.element[].short
busy | free | busy-unavailable | busy-tentative | entered-in-error

# differential.element[].definition
busy | free | busy-unavailable | busy-tentative | entered-in-error.

# differential.element[].mapping[].map
FREEBUSY;FBTYPE=(freeBusyType):19980314T233000Z/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded

# differential.element[].mapping[].map
FREEBUSY;FBTYPE=FREE:(start)/19980315T003000Z If the freeBusyType is BUSY, then this value can be excluded

# differential.element[].mapping[].map
FREEBUSY:19980314T233000Z/(end) If the freeBusyType is BUSY, then this value can be excluded (as shown)

# differential.element[].short
This slot has already been overbooked, appointments are unlikely to be accepted for this time

# differential.element[].definition
This slot has already been overbooked, appointments are unlikely to be accepted for this time.

# differential.element[].meaningWhenMissing
If overbooked is missing, systems may assume that there are still appointments available

# differential.element[].short
Comments on the slot to describe any extended information. Such as custom constraints on the slot

# differential.element[].definition
Comments on the slot to describe any extended information. Such as custom constraints on the slot.