FHIR Tooling Extensions IG, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 0.8.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/FHIR/fhir-tools-ig/ and changes regularly. See the Directory of published versions
| Official URL: http://hl7.org/fhir/tools/StructureDefinition/logical-target | Version: 0.8.0 | |||
| Standards status: Informative | Maturity Level: 2 | Computable Name: LogicalTarget | ||
| Other Identifiers: OID:2.16.840.1.113883.4.642.40.1.42.32 | ||||
This extension is used logical models to indicate that this type can be the target of a reference. This indicates that there is a persistence identity and maintenance lifecycle for the type, though there are no requirements for how those are defined.
Context of Use
This extension may be used on the following element(s)
StructureDefinition    
  Usage info
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
| Name | Flags | Card. | Type | Description & Constraints    Filter:   | 
|---|---|---|---|---|
|   Extension | 0..1 | Extension | logical-target | |
|    id | 0..1 | id | Unique id for inter-element referencing | |
|    extension | 0..0 | |||
|    url | 1..1 | uri | "http://hl7.org/fhir/tools/StructureDefinition/logical-target" | |
|    value[x] | 1..1 | boolean | Value of extension | |
|  Documentation for this format | ||||
This structure is derived from Extension
Summary
Simple Extension with the type boolean: This extension is used logical models to indicate that this type can be the target of a reference. This indicates that there is a persistence identity and maintenance lifecycle for the type, though there are no requirements for how those are defined.
Maturity: 2
Differential View
This structure is derived from Extension
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints    Filter:   | 
|---|---|---|---|---|
|   Extension | 0..1 | Extension | logical-target | |
|    id | 0..1 | id | Unique id for inter-element referencing | |
|    extension | 0..0 | |||
|    url | 1..1 | uri | "http://hl7.org/fhir/tools/StructureDefinition/logical-target" | |
|    value[x] | 1..1 | boolean | Value of extension | |
|  Documentation for this format | ||||
This structure is derived from Extension
Summary
Simple Extension with the type boolean: This extension is used logical models to indicate that this type can be the target of a reference. This indicates that there is a persistence identity and maintenance lifecycle for the type, though there are no requirements for how those are defined.
Maturity: 2
Other representations of profile: CSV, Excel, Schematron
| Id | Grade | Path(s) | Description | Expression | 
| 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() |