FHIR Release 3 (STU) FHIR Home Getting Started Documentation Resources Profiles Extensions Operations Terminologies Foundation Element Element - Detailed Descriptions This page is part of the FHIR Specification (v3.0.2: STU 3). The current version which supercedes this version is 4.0.1 . For a full list of available versions, see the Directory of published versions Element Detailed Descriptions 2.30.1 Element - Detailed Descriptions FHIR Infrastructure Work Group Maturity Level : 5 Ballot Status : Trial Use 2.30.1.1 Element Element Definition Base definition for all elements in a resource. Control 1..1 Invariants Defined on this element ele-1 : All FHIR elements must have a @value or children ( expression : hasValue() | (children().count() > id.count()), xpath: @value|f:*|h:div) Affect this element Element.id Definition

unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Control 0..1 Type string Element.extension Definition May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Control 0..* Type Extension Alternate Names extensions; user content Comments 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. ®© HL7.org 2011+. FHIR Release 3 (STU; v3.0.2-11200) generated on Thurs, Oct 24, 2019 11:53+1100. QA Page Links: Search | Version History | Table of Contents | Credits | Compare has moved to DSTU2 | | Propose a change here .