SMART Base, published by WHO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-base/ and changes regularly. See the Directory of published versions
Extension: SGString
| Official URL: http://smart.who.int/base/StructureDefinition/SGString | Version: 0.2.0 | |||
| Draft as of 2025-09-23 | Computable Name: SGString | |||
Smart Guidelines (required) string extension for use in a complex extension
Context of Use
-
Element ID:
Element
This extension may be used on the following element(s)
Usage info
Usages:
- Use this Extension: SGUserStory
You can also check for usages in the FHIR IG Statistics
Formal Views of Extension Content
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
This structure is derived from Extension
Other representations of profile: CSV, Excel, Schematron
Constraints
| Id | Grade | Path(s) | Details | Requirements |
| ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) | |
| ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() |