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Base [StructureDefinition](/content/docs/api/fhir/resources/structuredefinition/index.html) for [RelatedArtifact](/content/docs/api/fhir/datatypes/relatedartifact/index.html) Type: Related artifacts such as additional documentation, justification, or bibliographic references.

- Schema

## Elements

| Name      | Required | Type                                                                                              | Description                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|-----------|----------|---------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| id        |          | string                                                                                            | Unique id for inter-element referencing<br>Details<br>Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.                                                                                                                                                                                                                                                        |
| extension |          | [Extension](/content/docs/api/fhir/datatypes/extension/index.html)[]                        | Additional content defined by implementations<br>Details<br>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.<br>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. |
| type      | ✓        | code                                                                                              | documentation \| justification \| citation \| predecessor \| successor \| derived-from \| depends-on \| composed-of<br>Details<br>The type of relationship to the related artifact.                                                                                                                                                                                                                                                                                                   |
| label     |          | string                                                                                            | Short label<br>Details<br>A short label that can be used to reference the citation from elsewhere in the containing artifact, such as a footnote index.                                                                                                                                                                                                                                                                                  |
| display   |          | string                                                                                            | Brief description of the related artifact<br>Details<br>A brief description of the document or knowledge resource being referenced, suitable for display to a consumer.                                                                                                                                                                                                                                                                  |
| citation  |          | markdown                                                                                          | Bibliographic citation for the artifact<br>Details<br>A bibliographic citation for the related artifact. This text SHOULD be formatted according to an accepted citation format.<br>Additional structured information about citations should be captured as extensions.                                                                                                                                                                |
| url       |          | url                                                                                               | Where the artifact can be accessed<br>Details<br>A url for the artifact that can be followed to access the actual content.<br>If a document or resource element is present, this element SHALL NOT be provided (use the url or reference in the Attachment or resource reference).                                                                                                                                                  |
| document  |          | [Attachment](/content/docs/api/fhir/datatypes/attachment/index.html)                         | What document is being referenced<br>Details<br>The document being referenced, represented as an attachment. This is exclusive with the resource element.                                                                                                                                                                                                                                                                                       |
| resource  |          | canonical                                                                                         | What resource is being referenced<br>Details<br>The related resource, such as a library, value set, profile, or other knowledge resource.<br>If the type is predecessor, this is a reference to the succeeding knowledge resource. If the type is successor, this is a reference to the prior knowledge resource.                                                                                                                                                       |

- [Elements](/content/docs/api/fhir/datatypes/relatedartifact#elements/index.html)