Identifies and conveys information about restrictions on the use or release of exchanged information, e.g. information that can only be shared under particular condition, such as a signed data use agreement between parties

An indication of whether a location, service, or practitioner is accepting new patients

Describes the status of an identifier

Time period when the contact point is to be used

Represents an external point of contact responsible for handling communications with this entity

The details of a healthcare service available at a location.

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.

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.

An Extension

Identifies and conveys information about restrictions on the use or release of exchanged information, e.g. information that can only be shared under particular condition, such as a signed data use agreement between parties

An indication of whether a location, service, or practitioner is accepting new patients

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).

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.

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.

External identifiers for this item.

An Extension

Describes the status of an identifier

The purpose of this identifier.

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Identifies the purpose for this identifier, if known .

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Allows users to make use of identifiers when the identifier system is not known.

Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

Identifier.system is always case sensitive.

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

The portion of the identifier typically relevant to the user and which is unique within the context of the system.

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Time period during which identifier is/was valid for use.

Organization that issued/manages the identifier.

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

This flag is used to mark the record to not be used. This is not used when a center is closed for maintenance, or for holidays, the notAvailable period is to be used for this.

This element is labeled as a modifier because it may be used to mark that the resource was created in error.

The organization that provides this healthcare service.

This property is recommended to be the same as the Location's managingOrganization, and if not provided should be interpreted as such. If the Location does not have a managing Organization, then this property should be populated.

Identifies the broad category of service being performed or delivered.

Selecting a Service Category then determines the list of relevant service types that can be selected in the primary service type.

A category of the service(s) that could be provided.

The specific type of service that may be delivered or performed.

Additional details about where the content was created (e.g. clinical specialty).

Collection of specialties handled by the service site. This is more of a medical term.

A specialty that a healthcare service may provide.

The location(s) where this healthcare service may be provided.

Further description of the service as it would be presented to a consumer while searching.

Any additional description of the service and/or any specific issues not covered by the other attributes, which can be displayed as further detail under the serviceName.

Would expect that a user would not see this information on a search results, and it would only be available when viewing the complete details of the service.

Extra details about the service that can't be placed in the other fields.

If there is a photo/symbol associated with this HealthcareService, it may be included here to facilitate quick identification of the service in a list.

List of contacts related to this specific healthcare service.

If this is empty, then refer to the location's contacts.

An Extension

Time period when the contact point is to be used

Represents an external point of contact responsible for handling communications with this entity

Telecommunications form for contact point - what communications system is required to make use of the contact.

Telecommunications form for contact point.

The actual contact point details, in a form that is meaningful to the designated communication system (i.e. phone number or email address).

Additional text data such as phone extension numbers, or notes about use of the contact are sometimes included in the value.

Need to support legacy numbers that are not in a tightly controlled format.

Identifies the purpose for the contact point.

Applications can assume that a contact is current unless it explicitly says that it is temporary or old.

Use of contact point.

Need to track the way a person uses this contact, so a user can choose which is appropriate for their purpose.

Specifies a preferred order in which to use a set of contacts. ContactPoints with lower rank values are more preferred than those with higher rank values.

Note that rank does not necessarily follow the order in which the contacts are represented in the instance.

Time period when the contact point was/is in use.

The location(s) that this service is available to (not where the service is provided).

The locations referenced by the coverage area can include both specific locations, including areas, and also conceptual domains too (mode = kind), such as a physical area (tri-state area) and some other attribute (covered by Example Care Organization). These types of Locations are often not managed by any specific organization. This could also include generic locations such as "in-home".

The code(s) that detail the conditions under which the healthcare service is available/offered.

The provision means being commissioned by, contractually obliged or financially sourced. Types of costings that may apply to this healthcare service, such if the service may be available for free, some discounts available, or fees apply.

The code(s) that detail the conditions under which the healthcare service is available/offered.

Does this service have specific eligibility requirements that need to be met in order to use the service?

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).

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.

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.

Coded value for the eligibility.

Coded values underwhich a specific service is made available.

Describes the eligibility conditions for the service.

The description of service eligibility should, in general, not exceed one or two paragraphs. It should be sufficient for a prospective consumer to determine if they are likely to be eligible or not. Where eligibility requirements and conditions are complex, it may simply be noted that an eligibility assessment is required. Where eligibility is determined by an outside source, such as an Act of Parliament, this should be noted, preferably with a reference to a commonly available copy of the source document such as a web page.

Programs that this service is applicable to.

Programs are often defined externally to an Organization, commonly by governments; e.g. Home and Community Care Programs, Homeless Program, ….

Government or local programs that this service applies to.

Collection of characteristics (attributes).

These could be such things as is wheelchair accessible.

Some services are specifically made available in multiple languages, this property permits a directory to declare the languages this is offered in. Typically this is only provided where a service operates in communities with mixed languages used.

When using this property it indicates that the service is available with this language, it is not derived from the practitioners, and not all are required to use this language, just that this language is available while scheduling.

A human language.

Ways that the service accepts referrals, if this is not provided then it is implied that no referral is required.

The methods of referral can be used when referring to a specific HealthCareService resource.

Indicates whether or not a prospective consumer will require an appointment for a particular service at a site to be provided by the Organization. Indicates if an appointment is required for access to this service.

A collection of times that the Service Site is available.

More detailed availability information may be provided in associated Schedule/Slot resources.

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).

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.

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.

Indicates which days of the week are available between the start and end Times.

The days of the week.

Is this always available? (hence times are irrelevant) e.g. 24 hour service.

The opening time of day. Note: If the AllDay flag is set, then this time is ignored.

The time zone is expected to be for where this HealthcareService is provided at.

The closing time of day. Note: If the AllDay flag is set, then this time is ignored.

The time zone is expected to be for where this HealthcareService is provided at.

The HealthcareService is not available during this period of time due to the provided reason.

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).

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.

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.

The reason that can be presented to the user as to why this time is not available.

Service is not available (seasonally or for a public holiday) from this date.

A description of site availability exceptions, e.g. public holiday availability. Succinctly describing all possible exceptions to normal site availability as details in the available Times and not available Times.

Technical endpoints providing access to services operated for the specific healthcare services defined at this resource.

The details of a healthcare service available at a location.

The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

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.

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.

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.

The base language in which the resource is written.

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).

A human language.

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.

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.

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.

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.

An Extension

Identifies and conveys information about restrictions on the use or release of exchanged information, e.g. information that can only be shared under particular condition, such as a signed data use agreement between parties

An indication of whether a location, service, or practitioner is accepting new patients

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).

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.

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.

External identifiers for this item.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

An Extension

Describes the status of an identifier

The purpose of this identifier.

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Identifies the purpose for this identifier, if known .

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Allows users to make use of identifiers when the identifier system is not known.

Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

Identifier.system is always case sensitive.

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

The portion of the identifier typically relevant to the user and which is unique within the context of the system.

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Time period during which identifier is/was valid for use.

Organization that issued/manages the identifier.

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

This flag is used to mark the record to not be used. This is not used when a center is closed for maintenance, or for holidays, the notAvailable period is to be used for this.

This element is labeled as a modifier because it may be used to mark that the resource was created in error.

The organization that provides this healthcare service.

This property is recommended to be the same as the Location's managingOrganization, and if not provided should be interpreted as such. If the Location does not have a managing Organization, then this property should be populated.

Identifies the broad category of service being performed or delivered.

Selecting a Service Category then determines the list of relevant service types that can be selected in the primary service type.

A category of the service(s) that could be provided.

The specific type of service that may be delivered or performed.

Additional details about where the content was created (e.g. clinical specialty).

Collection of specialties handled by the service site. This is more of a medical term.

A specialty that a healthcare service may provide.

The location(s) where this healthcare service may be provided.

Further description of the service as it would be presented to a consumer while searching.

Any additional description of the service and/or any specific issues not covered by the other attributes, which can be displayed as further detail under the serviceName.

Would expect that a user would not see this information on a search results, and it would only be available when viewing the complete details of the service.

Extra details about the service that can't be placed in the other fields.

If there is a photo/symbol associated with this HealthcareService, it may be included here to facilitate quick identification of the service in a list.

List of contacts related to this specific healthcare service.

If this is empty, then refer to the location's contacts.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

An Extension

Time period when the contact point is to be used

Represents an external point of contact responsible for handling communications with this entity

Telecommunications form for contact point - what communications system is required to make use of the contact.

Telecommunications form for contact point.

The actual contact point details, in a form that is meaningful to the designated communication system (i.e. phone number or email address).

Additional text data such as phone extension numbers, or notes about use of the contact are sometimes included in the value.

Need to support legacy numbers that are not in a tightly controlled format.

Identifies the purpose for the contact point.

Applications can assume that a contact is current unless it explicitly says that it is temporary or old.

Use of contact point.

Need to track the way a person uses this contact, so a user can choose which is appropriate for their purpose.

Specifies a preferred order in which to use a set of contacts. ContactPoints with lower rank values are more preferred than those with higher rank values.

Note that rank does not necessarily follow the order in which the contacts are represented in the instance.

Time period when the contact point was/is in use.

The location(s) that this service is available to (not where the service is provided).

The locations referenced by the coverage area can include both specific locations, including areas, and also conceptual domains too (mode = kind), such as a physical area (tri-state area) and some other attribute (covered by Example Care Organization). These types of Locations are often not managed by any specific organization. This could also include generic locations such as "in-home".

The code(s) that detail the conditions under which the healthcare service is available/offered.

The provision means being commissioned by, contractually obliged or financially sourced. Types of costings that may apply to this healthcare service, such if the service may be available for free, some discounts available, or fees apply.

The code(s) that detail the conditions under which the healthcare service is available/offered.

Does this service have specific eligibility requirements that need to be met in order to use the service?

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

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.

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.

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).

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.

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.

Coded value for the eligibility.

Coded values underwhich a specific service is made available.

Describes the eligibility conditions for the service.

The description of service eligibility should, in general, not exceed one or two paragraphs. It should be sufficient for a prospective consumer to determine if they are likely to be eligible or not. Where eligibility requirements and conditions are complex, it may simply be noted that an eligibility assessment is required. Where eligibility is determined by an outside source, such as an Act of Parliament, this should be noted, preferably with a reference to a commonly available copy of the source document such as a web page.

Programs that this service is applicable to.

Programs are often defined externally to an Organization, commonly by governments; e.g. Home and Community Care Programs, Homeless Program, ….

Government or local programs that this service applies to.

Collection of characteristics (attributes).

These could be such things as is wheelchair accessible.

Some services are specifically made available in multiple languages, this property permits a directory to declare the languages this is offered in. Typically this is only provided where a service operates in communities with mixed languages used.

When using this property it indicates that the service is available with this language, it is not derived from the practitioners, and not all are required to use this language, just that this language is available while scheduling.

A human language.

Ways that the service accepts referrals, if this is not provided then it is implied that no referral is required.

The methods of referral can be used when referring to a specific HealthCareService resource.

Indicates whether or not a prospective consumer will require an appointment for a particular service at a site to be provided by the Organization. Indicates if an appointment is required for access to this service.

A collection of times that the Service Site is available.

More detailed availability information may be provided in associated Schedule/Slot resources.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

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.

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.

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).

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.

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.

Indicates which days of the week are available between the start and end Times.

The days of the week.

Is this always available? (hence times are irrelevant) e.g. 24 hour service.

The opening time of day. Note: If the AllDay flag is set, then this time is ignored.

The time zone is expected to be for where this HealthcareService is provided at.

The closing time of day. Note: If the AllDay flag is set, then this time is ignored.

The time zone is expected to be for where this HealthcareService is provided at.

The HealthcareService is not available during this period of time due to the provided reason.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

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.

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.

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).

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.

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.

The reason that can be presented to the user as to why this time is not available.

Service is not available (seasonally or for a public holiday) from this date.

A description of site availability exceptions, e.g. public holiday availability. Succinctly describing all possible exceptions to normal site availability as details in the available Times and not available Times.

Technical endpoints providing access to services operated for the specific healthcare services defined at this resource.