Release 5 Ballot

This page is part of the FHIR Specification (v5.0.0-ballot: R5 Ballot - see ballot notes). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions

Extension: alternativeExpression

FHIR Infrastructure Work Group Maturity Level: 1InformativeUse Context: Any

Summary

Defining URL:http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression
Version:5.0.0-ballot
Name:alternativeExpression
Title:null
Modifier:This extension is not a modifier extension
Status:draft
Definition:Specifies an alternative, equivalent expression in another formal language. For example, given a condition expression in CQL, an alternative formulation in SQL could be provided.
Committee:FHIR Infrastructure Work Group

Status: draft. Extension maintained by: Health Level Seven, Inc. - CDS WG

Specifies an alternative, equivalent expression in another formal language. For example, given a condition expression in CQL, an alternative formulation in SQL could be provided.

Comment:

This extension can be used on any Expression, including other Expression extensions such as cqf-expression, cqf-initialValue, and cqf-calculatedValue.

Context of Use: Use on Element ID Expression

Extension Content

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. alternativeExpression0..1ExpressionURL = http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression
alternativeExpression: Specifies an alternative, equivalent expression in another formal language. For example, given a condition expression in CQL, an alternative formulation in SQL could be provided.


Use on Element ID Expression

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression
alternativeExpression: Specifies an alternative, equivalent expression in another formal language. For example, given a condition expression in CQL, an alternative formulation in SQL could be provided.


Use on Element ID Expression
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression"
... value[x] 1..1ExpressionValue of extension

doco Documentation for this format

XML Template

<!-- alternativeExpression -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression" >
  <!-- from Element: extension -->
 <valueExpression><!-- I 1..1 Expression Value of extension --></valueExpression>
</extension>

JSON Template

{ // alternativeExpression
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression", // R! 
    "valueExpression" : { Expression } // I R! Value of extension
  }

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. alternativeExpression0..1ExpressionURL = http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression
alternativeExpression: Specifies an alternative, equivalent expression in another formal language. For example, given a condition expression in CQL, an alternative formulation in SQL could be provided.


Use on Element ID Expression

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression
alternativeExpression: Specifies an alternative, equivalent expression in another formal language. For example, given a condition expression in CQL, an alternative formulation in SQL could be provided.


Use on Element ID Expression
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression"
... value[x] 1..1ExpressionValue of extension

doco Documentation for this format

XML Template

<!-- alternativeExpression -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression" >
  <!-- from Element: extension -->
 <valueExpression><!-- I 1..1 Expression Value of extension --></valueExpression>
</extension>

JSON Template

{ // alternativeExpression
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/cqf-alternativeExpression", // R! 
    "valueExpression" : { Expression } // I R! Value of extension
  }

 

Constraints

  • ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
  • ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))
  • ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
  • ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
  • ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)

Search

No Search Extensions defined for this resource

Examples of this extension

No examples found.