FHIR CI-Build

This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions icon

http://www.hl7.org/Special/committees/fiwg/index.cfm Maturity Level: N  Normative (from v4.2.0) Compartments: No defined compartments

Detailed Descriptions for the elements in the CanonicalResource Resource.

CanonicalResource
Definition

Common Interface declaration for conformance and knowledge artifact resources.

Short Display Common Interface declaration for definitional resources
Cardinality 0..*
Type DomainResource
Summary false
Invariants
Defined on this element
cnl-0Warning Name should be usable as an identifier for the module by machine processing applications such as code generationname.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')
CanonicalResource.url
Definition

An absolute URI that is used to identify this {{title}} when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which an authoritative instance of this {{title}} is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the {{title}} is stored on different servers.

Short Display Canonical identifier for this {{title}}, represented as an absolute URI (globally unique)
Cardinality 0..1
Type uri
Requirements

Allows the {{title}} to be referenced by a single globally unique identifier.

Summary true
Comments

Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances may share the same URL if they have a distinct version.

The determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author. Considerations for making this decision are found in Technical and Business Versions.

In some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the meta.source element to indicate where the current master source of the resource can be found.

Invariants
Defined on this element
cnl-1Warning URL should not contain | or # - these characters make processing canonical references problematicexists() implies matches('^[^|# ]+$')
CanonicalResource.identifier
Definition

A formal identifier that is used to identify this {{title}} when it is represented in other formats, or referenced in a specification, model, design or an instance.

Short Display Additional identifier for the {{title}}
Note This is a business identifier, not a resource identifier (see discussion)
Cardinality 0..*
Type Identifier
Requirements

Allows externally provided and/or usable business identifiers to be easily associated with the {{title}}.

Summary true
Comments

Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this {{title}} outside of FHIR, where it is not possible to use the logical URI.

CanonicalResource.version
Definition

The identifier that is used to identify this version of the {{title}} when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the {{title}} author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence without additional knowledge. (See the versionAlgorithm element.)

Short Display Business version of the {{title}}
Note This is a business versionId, not a resource version id (see discussion)
Cardinality 0..1
Type string
Summary true
Comments

There may be different {{title}}s that have the same url but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the {{title}} with the format [url]|[version]. The version SHOULD NOT contain a '#' - see Business Version.

CanonicalResource.versionAlgorithm[x]
Definition

Indicates the mechanism used to compare versions to determine which is more current.

Short Display How to compare versions
Cardinality 0..1
Terminology Binding Version Algorithm (Extensible)
Type string|Coding
[x] Note See Choice of Datatypes for further information about how to use [x]
Summary true
Comments

If set as a string, this is a FHIRPath expression that has two additional context variables passed in - %version1 and %version2 and will return a negative number if version1 is newer, a positive number if version2 and a 0 if the version ordering can't be successfully be determined.

CanonicalResource.name
Definition

A natural language name identifying the {{title}}. This name should be usable as an identifier for the resource by machine processing applications such as code generation.

Short Display Name for this {{title}} (computer friendly)
Cardinality 0..1
Type string
Requirements

Supports code generation.

Summary true
Comments

The name is not expected to be globally unique. The name should be a simple alphanumeric type no-whitespace name to ensure that it is machine-processing friendly.

Invariants
Affect this element
cnl-0Warning Name should be usable as an identifier for the module by machine processing applications such as code generationname.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')
CanonicalResource.title
Definition

A short, descriptive, user-friendly title for the {{title}}.

Short Display Name for this {{title}} (human friendly)
Cardinality 0..1
Type string
Summary true
Comments

This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.

CanonicalResource.status
Definition

The current state of this {{title}}.

Short Display draft | active | retired | unknown
Cardinality 1..1
Terminology Binding PublicationStatus (Required)
Type code
Is Modifier true (Reason: This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration)
Requirements

Enables tracking the life-cycle of the content and filtering of {{title}}s that are appropriate for use versus not.

Summary true
Comments

A nominal state-transition diagram can be found in the Definition pattern documentation.

Unknown does not represent 'other' - one of the defined statuses must apply. Unknown is used when the authoring system is not sure what the current status is.

See guidance around (not) making local changes to elements here.

CanonicalResource.experimental
Definition

A Boolean value to indicate that this {{title}} is authored for testing purposes (or education/evaluation/marketing) and is not intended for genuine usage.

Short Display For testing purposes, not real usage
Cardinality 0..1
Type boolean
Meaning if Missing If absent, this resource is treated as though it is not experimental.
Requirements

Enables experimental content to be developed following the same lifecycle that would be used for a production-level {{title}}.

Summary true
Comments

Allows filtering of {{title}}s that are appropriate for use versus not.

CanonicalResource.date
Definition

The date (and optionally time) when the {{title}} was last significantly changed. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the {{title}} changes.

Short Display Date last changed
Cardinality 0..1
Type dateTime
Alternate Names Revision Date
Summary true
Comments

The date is often not tracked until the resource is published, but may be present on draft content. Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the {{title}}. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.

See guidance around (not) making local changes to elements here.

CanonicalResource.publisher
Definition

The name of the organization or individual responsible for the release and ongoing maintenance of the {{title}}.

Short Display Name of the publisher/steward (organization or individual)
Cardinality 0..1
Type string
Requirements

Helps establish the "authority/credibility" of the {{title}}. May also allow for contact.

Summary true
Comments

Usually an organization but may be an individual. The publisher (or steward) of the {{title}} is the organization or individual primarily responsible for the maintenance and upkeep of the {{title}}. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the {{title}}. This item SHOULD be populated unless the information is available from context.

CanonicalResource.contact
Definition

Contact details to assist a user in finding and communicating with the publisher.

Short Display Contact details for the publisher
Cardinality 0..*
Type ContactDetail
Summary true
Comments

May be a web site, an email address, a telephone number, etc.

See guidance around (not) making local changes to elements here.

CanonicalResource.description
Definition

A free text natural language description of the {{title}} from a consumer's perspective.

Short Display Natural language description of the {{title}}
Cardinality 0..1
Type markdown
Summary false
Comments

This description can be used to capture details such as comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the {{title}} as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context.

CanonicalResource.useContext
Definition

The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate {{title}}s.

Short Display The context that the content is intended to support
Cardinality 0..*
Type UsageContext
Requirements

Assist in searching for appropriate content.

Summary true
Comments

When multiple useContexts are specified, there is no expectation that all or even any of the contexts apply.

CanonicalResource.jurisdiction
Standards Status This element has a standards status of "Deprecated" which is different from the status of the whole resource
Definition

A legal or geographic region in which the {{title}} is intended to be used.

Short Display Intended jurisdiction for {{title}} (if applicable)
Cardinality 0..*
Terminology Binding Jurisdiction ValueSet (Extensible)
Type CodeableConcept
Summary true
Comments

It may be possible for the {{title}} to be used in jurisdictions other than those for which it was originally designed or intended.

DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to using the new 'jurisdiction' code in the useContext element. (I.e. useContext.code indicating http://terminology.hl7.org/CodeSystem/usage-context-type#jurisdiction and useContext.valueCodeableConcept indicating the jurisdiction.)

CanonicalResource.purpose
Definition

Explanation of why this {{title}} is needed and why it has been designed as it has.

Short Display Why this {{title}} is defined
Cardinality 0..1
Type markdown
Summary false
Comments

This element does not describe the usage of the {{title}}. Instead, it provides traceability of "why" the resource is either needed or "why" it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this {{title}}.

CanonicalResource.copyright
Definition

A copyright statement relating to the {{title}} and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the {{title}}.

Short Display Use and/or publishing restrictions
Cardinality 0..1
Type markdown
Requirements

Consumers must be able to determine any legal restrictions on the use of the {{title}} and/or its content.

Alternate Names License; Restrictions
Summary false
Comments

The short copyright declaration (e.g. (c) '2015+ xyz organization' should be sent in the copyrightLabel element.

CanonicalResource.copyrightLabel
Definition

A short string (<50 characters), suitable for inclusion in a page footer that identifies the copyright holder, effective period, and optionally whether rights are resctricted. (e.g. 'All rights reserved', 'Some rights reserved').

Short Display Copyright holder and year(s)
Cardinality 0..1
Type string
Requirements

Defines the content expected to be rendered in all representations of the artifact.

Summary false
Comments

The (c) symbol should NOT be included in this string. It will be added by software when rendering the notation. Full details about licensing, restrictions, warrantees, etc. goes in the more general 'copyright' element.