Details and position information for a place where services are provided and resources and participants may be stored, found, contained, or accommodated.

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 its narrative along with other profiles, value sets, etc.

These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

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.

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 managable, 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.

Unique code or number identifying the location to its users.

Organization label locations in registries, need to keep track of those.

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, an absolute 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 http://hl7.org/fhir/StructureDefinition/rendered-value). 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.

The status property covers the general availability of the resource, not the current value which may be covered by the operationStatus, or by a schedule/slots if they are configured for the location.

Indicates whether the location is still in use.

The operational status covers operation values most relevant to beds (but can also apply to rooms/units/chairs/etc. such as an isolation unit/dialysis chair). This typically covers concepts such as contamination, housekeeping, and other activities like maintenance.

The operational status if the location (where typically a bed/room).

Name of the location as used by humans. Does not need to be unique.

If the name of a location changes, consider putting the old name in the alias column so that it can still be located through searches.

Description of the Location, which helps in finding or referencing the place.

Humans need additional information to verify a correct location has been identified.

Indicates whether a resource instance represents a specific location or a class of locations.

This is labeled as a modifier because whether or not the location is a class of locations changes how it can be used and understood.

Indicates whether a resource instance represents a specific location or a class of locations.

When using a Location resource for scheduling or orders, we need to be able to refer to a class of Locations instead of a specific Location.

Indicates the type of function performed at the location.

A reference to a code defined by a terminology system.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Allows for alternative encodings within a code system, and translations to other code systems.

The identification of the code system that defines the meaning of the symbol in the code.

The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should be an absolute reference to some definition that establishes the system clearly and unambiguously.

Need to be unambiguous about the source of the definition of the symbol.

The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

Need to refer to a particular code in the system.

A representation of the meaning of the code in the system, following the rules of the system.

Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

The contact details of communication devices available at the location. This can include addresses, phone numbers, fax numbers, mobile numbers, email addresses and web sites.

The address/telecom use code 'home' are not to be used. Note that these contacts are not the contact details of people who provide the service (that would be through PractitionerRole), these are official contacts for the Healthcare itself for specific purposes. E.g. Mailing Addresses, Billing Addresses, Contact numbers for Booking or Billing Enquiries, general web address, web address for online bookings etc.

If this is empty (or the type of interest is empty), refer to the organization's contacts.

Need to keep track of both simple contact details and also assigned contacts within larger organizations.

The contact details application for the purpose defined.

The contact details application for the purpose defined.

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.

Ranks need not be unique. E.g. it's possible to have multiple contacts with rank=1. If the ranks have different systems or uses, this would be interpreted to mean "X is my most preferred phone number, Y is my most preferred email address" or "X is my preferred home email and Y is my preferred work email". If the system and use for equally-ranked contacts are the same, then the level of preference is equivalent for both repetitions.

Ranks need not be sequential and not all repetitions must have a rank. For example, it's possible to have 4 contacts with ranks of 2, 5 and two with no rank specified. That would be interpreted to mean the first is preferred over the second and no preference stated for the remaining contacts.

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

The contact details application for the purpose defined.

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.

Ranks need not be unique. E.g. it's possible to have multiple contacts with rank=1. If the ranks have different systems or uses, this would be interpreted to mean "X is my most preferred phone number, Y is my most preferred email address" or "X is my preferred home email and Y is my preferred work email". If the system and use for equally-ranked contacts are the same, then the level of preference is equivalent for both repetitions.

Ranks need not be sequential and not all repetitions must have a rank. For example, it's possible to have 4 contacts with ranks of 2, 5 and two with no rank specified. That would be interpreted to mean the first is preferred over the second and no preference stated for the remaining contacts.

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

Physical location.

Additional addresses should be recorded using another instance of the Location resource, or via the Organization.

If locations can be visited, we need to keep track of their address.

Physical form of the location, e.g. building, room, vehicle, road, virtual.

Physical form of the location.

For purposes of showing relevant locations in queries, we need to categorize locations.

The absolute geographic location of the Location, expressed using the WGS84 datum (This is the same co-ordinate system used in KML).

To define a boundary shape for this location use the standard extension [http://hl7.org/fhir/StructureDefinition/location-boundary-geojson](http://hl7.org/fhir/extensions/StructureDefinition-location-boundary-geojson.html), and search using the contains special search parameter.

For mobile applications and automated route-finding knowing the exact location of the Location is required.

The organization responsible for the provisioning and upkeep of the location.

This can also be used as the part of the organization hierarchy where this location provides services. These services can be defined through the HealthcareService resource.

Need to know who manages the location.

Another Location of which this Location is physically a part of.

For purposes of location, display and identification, knowing which locations are located within other locations is important.

Collection of characteristics (attributes).

These could be such things as is wheelchair accessible.

A custom attribute that could be provided at a service (e.g. Wheelchair accessibiliy).

Connection details of a virtual service (e.g. shared conference call facility with dedicated number/details).

There are two types of virtual meetings that often exist:

• a persistent, virtual meeting room that can only be used for a single purpose at a time,
• and a dynamic virtual meeting room that is generated on demand for a specific purpose.

Implementers may consider using Appointment.virtualService for virtual meeting rooms that are generated on-demand.

Technical endpoints providing access to services operated for the location.

Organizations may have different systems at different locations that provide various services and need to be able to define the technical connection details for how to connect to them, and for what purpose.

Details and position information for a place where services are provided and resources and participants may be stored, found, contained, or accommodated.

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

Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case.

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 its 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).

IETF language tag for 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 a 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, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

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.

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 managable, 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 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 managable, 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.

Unique code or number identifying the location to its users.

Organization label locations in registries, need to keep track of those.

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 managable, 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.

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, an absolute 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 http://hl7.org/fhir/StructureDefinition/rendered-value). 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.

The status property covers the general availability of the resource, not the current value which may be covered by the operationStatus, or by a schedule/slots if they are configured for the location.

Indicates whether the location is still in use.

The operational status covers operation values most relevant to beds (but can also apply to rooms/units/chairs/etc. such as an isolation unit/dialysis chair). This typically covers concepts such as contamination, housekeeping, and other activities like maintenance.

The operational status if the location (where typically a bed/room).

Name of the location as used by humans. Does not need to be unique.

If the name of a location changes, consider putting the old name in the alias column so that it can still be located through searches.

A list of alternate names that the location is known as, or was known as, in the past.

There are no dates associated with the alias/historic names, as this is not intended to track when names were used, but to assist in searching so that older names can still result in identifying the location.

Over time locations and organizations go through many changes and can be known by different names.

For searching knowing previous names that the location was known by can be very useful.

Description of the Location, which helps in finding or referencing the place.

Humans need additional information to verify a correct location has been identified.

Indicates whether a resource instance represents a specific location or a class of locations.

This is labeled as a modifier because whether or not the location is a class of locations changes how it can be used and understood.

Indicates whether a resource instance represents a specific location or a class of locations.

When using a Location resource for scheduling or orders, we need to be able to refer to a class of Locations instead of a specific Location.

Indicates the type of function performed at the location.

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 managable, 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.

A reference to a code defined by a terminology system.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Allows for alternative encodings within a code system, and translations to other code systems.

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 managable, 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.

The identification of the code system that defines the meaning of the symbol in the code.

The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should be an absolute reference to some definition that establishes the system clearly and unambiguously.

Need to be unambiguous about the source of the definition of the symbol.

The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

Need to refer to a particular code in the system.

A representation of the meaning of the code in the system, following the rules of the system.

Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

The contact details of communication devices available at the location. This can include addresses, phone numbers, fax numbers, mobile numbers, email addresses and web sites.

The address/telecom use code 'home' are not to be used. Note that these contacts are not the contact details of people who provide the service (that would be through PractitionerRole), these are official contacts for the Healthcare itself for specific purposes. E.g. Mailing Addresses, Billing Addresses, Contact numbers for Booking or Billing Enquiries, general web address, web address for online bookings etc.

If this is empty (or the type of interest is empty), refer to the organization's contacts.

Need to keep track of both simple contact details and also assigned contacts within larger organizations.

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 managable, 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.

The purpose/type of contact.

If no purpose is defined, then these contact details may be used for any purpose.

The purpose for which an extended contact detail should be used.

The name of an individual to contact, some types of contact detail are usually blank.

If there is no named individual, the telecom/address information is not generally monitored by a specific individual.

The contact details application for the purpose defined.

The contact details application for the purpose defined.

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 managable, 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.

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.

Ranks need not be unique. E.g. it's possible to have multiple contacts with rank=1. If the ranks have different systems or uses, this would be interpreted to mean "X is my most preferred phone number, Y is my most preferred email address" or "X is my preferred home email and Y is my preferred work email". If the system and use for equally-ranked contacts are the same, then the level of preference is equivalent for both repetitions.

Ranks need not be sequential and not all repetitions must have a rank. For example, it's possible to have 4 contacts with ranks of 2, 5 and two with no rank specified. That would be interpreted to mean the first is preferred over the second and no preference stated for the remaining contacts.

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

The contact details application for the purpose defined.

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 managable, 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.

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.

Ranks need not be unique. E.g. it's possible to have multiple contacts with rank=1. If the ranks have different systems or uses, this would be interpreted to mean "X is my most preferred phone number, Y is my most preferred email address" or "X is my preferred home email and Y is my preferred work email". If the system and use for equally-ranked contacts are the same, then the level of preference is equivalent for both repetitions.

Ranks need not be sequential and not all repetitions must have a rank. For example, it's possible to have 4 contacts with ranks of 2, 5 and two with no rank specified. That would be interpreted to mean the first is preferred over the second and no preference stated for the remaining contacts.

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

Address for the contact.

More than 1 address would be for different purposes, and thus should be entered as a different entry,.

This contact detail is handled/monitored by a specific organization. If the name is provided in the contact, then it is referring to the named individual within this organization.

Some specific types of contact information can be an handled by an organization (eg legal council is via a specific firm).

Period that this contact was valid for usage.

If the details have multiple periods, then enter in a new ExtendedContact with the new period.

Physical location.

Additional addresses should be recorded using another instance of the Location resource, or via the Organization.

If locations can be visited, we need to keep track of their address.

Physical form of the location, e.g. building, room, vehicle, road, virtual.

Physical form of the location.

For purposes of showing relevant locations in queries, we need to categorize locations.

The absolute geographic location of the Location, expressed using the WGS84 datum (This is the same co-ordinate system used in KML).

To define a boundary shape for this location use the standard extension [http://hl7.org/fhir/StructureDefinition/location-boundary-geojson](http://hl7.org/fhir/extensions/StructureDefinition-location-boundary-geojson.html), and search using the contains special search parameter.

For mobile applications and automated route-finding knowing the exact location of the Location is required.

The organization responsible for the provisioning and upkeep of the location.

This can also be used as the part of the organization hierarchy where this location provides services. These services can be defined through the HealthcareService resource.

Need to know who manages the location.

Another Location of which this Location is physically a part of.

For purposes of location, display and identification, knowing which locations are located within other locations is important.

Collection of characteristics (attributes).

These could be such things as is wheelchair accessible.

A custom attribute that could be provided at a service (e.g. Wheelchair accessibiliy).

What days/times during a week is this location usually open, and any exceptions where the location is not available.

This type of information is commonly found published in directories and on websites informing customers when the facility is available.

Specific services within the location may have their own hours which could be shorter (or longer) than the locations hours.

Systems may choose to render availability differently than it is exchanged on the interface. For example, rather than "Mon, Tue, Wed, Thur, Fri from 9am-12am; Mon, Tue, Wed, Thur, Fri from 1pm-5pm" as would be implied by two availableTime repetitions, an application could render this information as "Mon-Fri 9-12am and 1-5pm".

The availableStartTime is the opening time, and the availableEndTime is the closing time.

Connection details of a virtual service (e.g. shared conference call facility with dedicated number/details).

There are two types of virtual meetings that often exist:

• a persistent, virtual meeting room that can only be used for a single purpose at a time,
• and a dynamic virtual meeting room that is generated on demand for a specific purpose.

Implementers may consider using Appointment.virtualService for virtual meeting rooms that are generated on-demand.

Technical endpoints providing access to services operated for the location.

Organizations may have different systems at different locations that provide various services and need to be able to define the technical connection details for how to connect to them, and for what purpose.