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4.3.2.215 CodeSystem http://hl7.org/fhir/CodeSystem/iana-link-relations

FHIR Infrastructure Work Group

Maturity Level: N

Normative (from v4.0.0)

Use Context: Country: World

• Narrative
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• JSON
• TTL

This Code system is used in the following value sets:

• ValueSet: Link Relation Types (Link Relation Types defined at https://www.iana.org/assignments/link-relations/link-relations.xhtml#link-relations-1)

4.3.2.215.1 Definition

Link Relation Types defined at https://www.iana.org/assignments/link-relations/link-relations.xhtml#link-relations-1

4.3.2.215.2 Content

This code system http://hl7.org/fhir/CodeSystem/iana-link-relations defines the following codes:

Code	Display	Definition	Copy
about	Refers to a resource that is the subject of the link's context.	Refers to a resource that is the subject of the link's context.
acl	Asserts that the link target provides an access control description for the link context.	Asserts that the link target provides an access control description for the link context.
alternate	Refers to a substitute for this context	Refers to a substitute for this context
amphtml	Used to reference alternative content that uses the AMP profile of the HTML format.	Used to reference alternative content that uses the AMP profile of the HTML format.
appendix	Refers to an appendix.	Refers to an appendix.
apple-touch-icon	Refers to an icon for the context. Synonym for icon.	Refers to an icon for the context. Synonym for icon.
apple-touch-startup-image	Refers to a launch screen for the context.	Refers to a launch screen for the context.
archives	Refers to a collection of records, documents, or other materials of historical interest.	Refers to a collection of records, documents, or other materials of historical interest.
author	Refers to the context's author.	Refers to the context's author.
blocked-by	Identifies the entity that blocks access to a resource following receipt of a legal demand.	Identifies the entity that blocks access to a resource following receipt of a legal demand.
bookmark	Gives a permanent link to use for bookmarking purposes.	Gives a permanent link to use for bookmarking purposes.
canonical	Designates the preferred version of a resource (the IRI and its contents).	Designates the preferred version of a resource (the IRI and its contents).
chapter	Refers to a chapter in a collection of resources.	Refers to a chapter in a collection of resources.
cite-as	Indicates that the link target is preferred over the link context for the purpose of permanent citation.	Indicates that the link target is preferred over the link context for the purpose of permanent citation.
collection	The target IRI points to a resource which represents the collection resource for the context IRI.	The target IRI points to a resource which represents the collection resource for the context IRI.
contents	Refers to a table of contents.	Refers to a table of contents.
convertedFrom	The document linked to was later converted to the document that contains this link relation. For example, an RFC can have a link to the Internet-Draft that became the RFC; in that case, the link relation would be "convertedFrom".	The document linked to was later converted to the document that contains this link relation. For example, an RFC can have a link to the Internet-Draft that became the RFC; in that case, the link relation would be "convertedFrom".
copyright	Refers to a copyright statement that applies to the link's context.	Refers to a copyright statement that applies to the link's context.
create-form	The target IRI points to a resource where a submission form can be obtained.	The target IRI points to a resource where a submission form can be obtained.
current	Refers to a resource containing the most recent item(s) in a collection of resources.	Refers to a resource containing the most recent item(s) in a collection of resources.
describedby	Refers to a resource providing information about the link's context.	Refers to a resource providing information about the link's context.
describes	The relationship A 'describes' B asserts that resource A provides a description of resource B. There are no constraints on the format or representation of either A or B, neither are there any further constraints on either resource.	The relationship A 'describes' B asserts that resource A provides a description of resource B. There are no constraints on the format or representation of either A or B, neither are there any further constraints on either resource.
disclosure	Refers to a list of patent disclosures made with respect to material for which 'disclosure' relation is specified.	Refers to a list of patent disclosures made with respect to material for which 'disclosure' relation is specified.
dns-prefetch	Used to indicate an origin that will be used to fetch required resources for the link context, and that the user agent ought to resolve as early as possible.	Used to indicate an origin that will be used to fetch required resources for the link context, and that the user agent ought to resolve as early as possible.
duplicate	Refers to a resource whose available representations are byte-for-byte identical with the corresponding representations of the context IRI.	Refers to a resource whose available representations are byte-for-byte identical with the corresponding representations of the context IRI.
edit	Refers to a resource that can be used to edit the link's context.	Refers to a resource that can be used to edit the link's context.
edit-form	The target IRI points to a resource where a submission form for editing associated resource can be obtained.	The target IRI points to a resource where a submission form for editing associated resource can be obtained.
edit-media	Refers to a resource that can be used to edit media associated with the link's context.	Refers to a resource that can be used to edit media associated with the link's context.
enclosure	Identifies a related resource that is potentially large and might require special handling.	Identifies a related resource that is potentially large and might require special handling.
external	Refers to a resource that is not part of the same site as the current context.	Refers to a resource that is not part of the same site as the current context.
first	An IRI that refers to the furthest preceding resource in a series of resources.	An IRI that refers to the furthest preceding resource in a series of resources.
glossary	Refers to a glossary of terms.	Refers to a glossary of terms.
help	Refers to context-sensitive help.	Refers to context-sensitive help.
hosts	Refers to a resource hosted by the server indicated by the link context.	Refers to a resource hosted by the server indicated by the link context.
hub	Refers to a hub that enables registration for notification of updates to the context.	Refers to a hub that enables registration for notification of updates to the context.
icon	Refers to an icon representing the link's context.	Refers to an icon representing the link's context.
index	Refers to an index.	Refers to an index.
intervalAfter	refers to a resource associated with a time interval that ends before the beginning of the time interval associated with the context resource	refers to a resource associated with a time interval that ends before the beginning of the time interval associated with the context resource
intervalBefore	refers to a resource associated with a time interval that begins after the end of the time interval associated with the context resource	refers to a resource associated with a time interval that begins after the end of the time interval associated with the context resource
intervalContains	refers to a resource associated with a time interval that begins after the beginning of the time interval associated with the context resource, and ends before the end of the time interval associated with the context resource	refers to a resource associated with a time interval that begins after the beginning of the time interval associated with the context resource, and ends before the end of the time interval associated with the context resource
intervalDisjoint	refers to a resource associated with a time interval that begins after the end of the time interval associated with the context resource, or ends before the beginning of the time interval associated with the context resource	refers to a resource associated with a time interval that begins after the end of the time interval associated with the context resource, or ends before the beginning of the time interval associated with the context resource
intervalDuring	refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource	refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource
intervalEquals	refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource	refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource
intervalFinishedBy	refers to a resource associated with a time interval that begins after the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource	refers to a resource associated with a time interval that begins after the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource
intervalFinishes	refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource	refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource
intervalIn	refers to a resource associated with a time interval that begins before or is coincident with the beginning of the time interval associated with the context resource, and ends after or is coincident with the end of the time interval associated with the context resource	refers to a resource associated with a time interval that begins before or is coincident with the beginning of the time interval associated with the context resource, and ends after or is coincident with the end of the time interval associated with the context resource
intervalMeets	refers to a resource associated with a time interval whose beginning coincides with the end of the time interval associated with the context resource	refers to a resource associated with a time interval whose beginning coincides with the end of the time interval associated with the context resource
intervalMetBy	refers to a resource associated with a time interval whose end coincides with the beginning of the time interval associated with the context resource	refers to a resource associated with a time interval whose end coincides with the beginning of the time interval associated with the context resource
intervalOverlappedBy	refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and ends after the beginning of the time interval associated with the context resource	refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and ends after the beginning of the time interval associated with the context resource
intervalOverlaps	refers to a resource associated with a time interval that begins before the end of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource	refers to a resource associated with a time interval that begins before the end of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource
intervalStartedBy	refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and ends before the end of the time interval associated with the context resource	refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and ends before the end of the time interval associated with the context resource
intervalStarts	refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource	refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource
item	The target IRI points to a resource that is a member of the collection represented by the context IRI.	The target IRI points to a resource that is a member of the collection represented by the context IRI.
last	An IRI that refers to the furthest following resource in a series of resources.	An IRI that refers to the furthest following resource in a series of resources.
latest-version	Points to a resource containing the latest (e.g., current) version of the context.	Points to a resource containing the latest (e.g., current) version of the context.
license	Refers to a license associated with this context.	Refers to a license associated with this context.
linkset	The link target of a link with the "linkset" relation type provides a set of links, including links in which the link context of the link participates.	The link target of a link with the "linkset" relation type provides a set of links, including links in which the link context of the link participates.
lrdd	Refers to further information about the link's context, expressed as a LRDD ("Link-based Resource Descriptor Document") resource. See for information about processing this relation type in host-meta documents. When used elsewhere, it refers to additional links and other metadata. Multiple instances indicate additional LRDD resources. LRDD resources MUST have an "application/xrd+xml" representation, and MAY have others.	Refers to further information about the link's context, expressed as a LRDD ("Link-based Resource Descriptor Document") resource. See for information about processing this relation type in host-meta documents. When used elsewhere, it refers to additional links and other metadata. Multiple instances indicate additional LRDD resources. LRDD resources MUST have an "application/xrd+xml" representation, and MAY have others.
manifest	Links to a manifest file for the context.	Links to a manifest file for the context.
mask-icon	Refers to a mask that can be applied to the icon for the context.	Refers to a mask that can be applied to the icon for the context.
media-feed	Refers to a feed of personalised media recommendations relevant to the link context.	Refers to a feed of personalised media recommendations relevant to the link context.
memento	The Target IRI points to a Memento, a fixed resource that will not change state anymore.	The Target IRI points to a Memento, a fixed resource that will not change state anymore.
micropub	Links to the context's Micropub endpoint.	Links to the context's Micropub endpoint.
modulepreload	Refers to a module that the user agent is to preemptively fetch and store for use in the current context.	Refers to a module that the user agent is to preemptively fetch and store for use in the current context.
monitor	Refers to a resource that can be used to monitor changes in an HTTP resource.	Refers to a resource that can be used to monitor changes in an HTTP resource.
monitor-group	Refers to a resource that can be used to monitor changes in a specified group of HTTP resources.	Refers to a resource that can be used to monitor changes in a specified group of HTTP resources.
next	Indicates that the link's context is a part of a series, and that the next in the series is the link target.	Indicates that the link's context is a part of a series, and that the next in the series is the link target.
next-archive	Refers to the immediately following archive resource.	Refers to the immediately following archive resource.
nofollow	Indicates that the context’s original author or publisher does not endorse the link target.	Indicates that the context’s original author or publisher does not endorse the link target.
noopener	Indicates that any newly created top-level browsing context which results from following the link will not be an auxiliary browsing context.	Indicates that any newly created top-level browsing context which results from following the link will not be an auxiliary browsing context.
noreferrer	Indicates that no referrer information is to be leaked when following the link.	Indicates that no referrer information is to be leaked when following the link.
opener	Indicates that any newly created top-level browsing context which results from following the link will be an auxiliary browsing context.	Indicates that any newly created top-level browsing context which results from following the link will be an auxiliary browsing context.
openid2.local_id	Refers to an OpenID Authentication server on which the context relies for an assertion that the end user controls an Identifier.	Refers to an OpenID Authentication server on which the context relies for an assertion that the end user controls an Identifier.
openid2.provider	Refers to a resource which accepts OpenID Authentication protocol messages for the context.	Refers to a resource which accepts OpenID Authentication protocol messages for the context.
original	The Target IRI points to an Original Resource.	The Target IRI points to an Original Resource.
P3Pv1	Refers to a P3P privacy policy for the context.	Refers to a P3P privacy policy for the context.
payment	Indicates a resource where payment is accepted.	Indicates a resource where payment is accepted.
pingback	Gives the address of the pingback resource for the link context.	Gives the address of the pingback resource for the link context.
preconnect	Used to indicate an origin that will be used to fetch required resources for the link context. Initiating an early connection, which includes the DNS lookup, TCP handshake, and optional TLS negotiation, allows the user agent to mask the high latency costs of establishing a connection.	Used to indicate an origin that will be used to fetch required resources for the link context. Initiating an early connection, which includes the DNS lookup, TCP handshake, and optional TLS negotiation, allows the user agent to mask the high latency costs of establishing a connection.
predecessor-version	Points to a resource containing the predecessor version in the version history.	Points to a resource containing the predecessor version in the version history.
prefetch	The prefetch link relation type is used to identify a resource that might be required by the next navigation from the link context, and that the user agent ought to fetch, such that the user agent can deliver a faster response once the resource is requested in the future.	The prefetch link relation type is used to identify a resource that might be required by the next navigation from the link context, and that the user agent ought to fetch, such that the user agent can deliver a faster response once the resource is requested in the future.
preload	Refers to a resource that should be loaded early in the processing of the link's context, without blocking rendering.	Refers to a resource that should be loaded early in the processing of the link's context, without blocking rendering.
prerender	Used to identify a resource that might be required by the next navigation from the link context, and that the user agent ought to fetch and execute, such that the user agent can deliver a faster response once the resource is requested in the future.	Used to identify a resource that might be required by the next navigation from the link context, and that the user agent ought to fetch and execute, such that the user agent can deliver a faster response once the resource is requested in the future.
prev	Indicates that the link's context is a part of a series, and that the previous in the series is the link target.	Indicates that the link's context is a part of a series, and that the previous in the series is the link target.
preview	Refers to a resource that provides a preview of the link's context.	Refers to a resource that provides a preview of the link's context.
previous	Refers to the previous resource in an ordered series of resources. Synonym for "prev".	Refers to the previous resource in an ordered series of resources. Synonym for "prev".
prev-archive	Refers to the immediately preceding archive resource.	Refers to the immediately preceding archive resource.
privacy-policy	Refers to a privacy policy associated with the link's context.	Refers to a privacy policy associated with the link's context.
profile	Identifying that a resource representation conforms to a certain profile, without affecting the non-profile semantics of the resource representation.	Identifying that a resource representation conforms to a certain profile, without affecting the non-profile semantics of the resource representation.
publication	Links to a publication manifest. A manifest represents structured information about a publication, such as informative metadata, a list of resources, and a default reading order.	Links to a publication manifest. A manifest represents structured information about a publication, such as informative metadata, a list of resources, and a default reading order.
related	Identifies a related resource.	Identifies a related resource.
restconf	Identifies the root of RESTCONF API as configured on this HTTP server. The "restconf" relation defines the root of the API defined in RFC8040. Subsequent revisions of RESTCONF will use alternate relation values to support protocol versioning.	Identifies the root of RESTCONF API as configured on this HTTP server. The "restconf" relation defines the root of the API defined in RFC8040. Subsequent revisions of RESTCONF will use alternate relation values to support protocol versioning.
replies	Identifies a resource that is a reply to the context of the link.	Identifies a resource that is a reply to the context of the link.
ruleinput	The resource identified by the link target provides an input value to an instance of a rule, where the resource which represents the rule instance is identified by the link context.	The resource identified by the link target provides an input value to an instance of a rule, where the resource which represents the rule instance is identified by the link context.
search	Refers to a resource that can be used to search through the link's context and related resources.	Refers to a resource that can be used to search through the link's context and related resources.
section	Refers to a section in a collection of resources.	Refers to a section in a collection of resources.
self	Conveys an identifier for the link's context.	Conveys an identifier for the link's context.
service	Indicates a URI that can be used to retrieve a service document.	Indicates a URI that can be used to retrieve a service document.
service-desc	Identifies service description for the context that is primarily intended for consumption by machines.	Identifies service description for the context that is primarily intended for consumption by machines.
service-doc	Identifies service documentation for the context that is primarily intended for human consumption.	Identifies service documentation for the context that is primarily intended for human consumption.
service-meta	Identifies general metadata for the context that is primarily intended for consumption by machines.	Identifies general metadata for the context that is primarily intended for consumption by machines.
sponsored	Refers to a resource that is within a context that is sponsored (such as advertising or another compensation agreement).	Refers to a resource that is within a context that is sponsored (such as advertising or another compensation agreement).
start	Refers to the first resource in a collection of resources.	Refers to the first resource in a collection of resources.
status	Identifies a resource that represents the context's status.	Identifies a resource that represents the context's status.
stylesheet	Refers to a stylesheet.	Refers to a stylesheet.
subsection	Refers to a resource serving as a subsection in a collection of resources.	Refers to a resource serving as a subsection in a collection of resources.
successor-version	Points to a resource containing the successor version in the version history.	Points to a resource containing the successor version in the version history.
sunset	Identifies a resource that provides information about the context's retirement policy.	Identifies a resource that provides information about the context's retirement policy.
tag	Gives a tag (identified by the given address) that applies to the current document.	Gives a tag (identified by the given address) that applies to the current document.
terms-of-service	Refers to the terms of service associated with the link's context.	Refers to the terms of service associated with the link's context.
timegate	The Target IRI points to a TimeGate for an Original Resource.	The Target IRI points to a TimeGate for an Original Resource.
timemap	The Target IRI points to a TimeMap for an Original Resource.	The Target IRI points to a TimeMap for an Original Resource.
type	Refers to a resource identifying the abstract semantic type of which the link's context is considered to be an instance.	Refers to a resource identifying the abstract semantic type of which the link's context is considered to be an instance.
ugc	Refers to a resource that is within a context that is User Generated Content.	Refers to a resource that is within a context that is User Generated Content.
up	Refers to a parent document in a hierarchy of documents.	Refers to a parent document in a hierarchy of documents.
version-history	Points to a resource containing the version history for the context.	Points to a resource containing the version history for the context.
via	Identifies a resource that is the source of the information in the link's context.	Identifies a resource that is the source of the information in the link's context.
webmention	Identifies a target URI that supports the Webmention protocol. This allows clients that mention a resource in some form of publishing process to contact that endpoint and inform it that this resource has been mentioned.	Identifies a target URI that supports the Webmention protocol. This allows clients that mention a resource in some form of publishing process to contact that endpoint and inform it that this resource has been mentioned.
working-copy	Points to a working copy for this resource.	Points to a working copy for this resource.
working-copy-of	Points to the versioned resource from which this working copy was obtained.	Points to the versioned resource from which this working copy was obtained.

See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page: