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Extension Associates the structure definition with a collection of Data Elements - Definition

URL for this extension:

http://hl7.org/fhir/StructureDefinition/datadictionary

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

This extension associates a structure definition with a data dictionary - a collection of data elements that any instance of data that conforms to the structure definition must also conform to. The value of the extension is a uri the defines a query that identifies the collection of relevant data elements

This extension can be used on any structure definition that is a constraint on the resource types Observation and Questionnaire. THe profile specifies which elements are mandatory etc, but any elements in a resource that conforms to the structure definition must also conform to one of the defined data elements.

For Observation: * Observation.code must be associated with a matching Data Element by DataElement.code. * The structure definition should bind Observation.code to a value set that has the same codes as the collection of data elements (though it can be narrower) * the units and the quantity value should conform to the rules laid down in the matching Data Element

For Questionnaire: * todo.

Context of Use: Use on element: StructureDefinition

usage info: insert a list of places where this extension is used

Extension Content

• Structure
• XML
• JSON
• All

Structure

Name	Flags	Card.	Type	Description & Constraints
extension			Extension	URL = http://hl7.org/fhir/StructureDefinition/datadictionary Associates the structure definition with a collection of Data Elements: This extension associates a structure definition with a data dictionary - a collection of data elements that any instance of data that conforms to the structure definition must also conform to. The value of the extension is a uri the defines a query that identifies the collection of relevant data elements This extension can be used on any structure definition that is a constraint on the resource types Observation and Questionnaire. THe profile specifies which elements are mandatory etc, but any elements in a resource that conforms to the structure definition must also conform to one of the defined data elements. For Observation: * Observation.code must be associated with a matching Data Element by DataElement.code. * The structure definition should bind Observation.code to a value set that has the same codes as the collection of data elements (though it can be narrower) * the units and the quantity value should conform to the rules laid down in the matching Data Element For Questionnaire: * todo. Use on element: StructureDefinition
extension		0..*	Extension	Additional Content defined by implementations
url		1..1	uri	identifies the meaning of the extension Fixed Value: http://hl7.org/fhir/StructureDefinition/datadictionary
valueString		0..1	string	Value of extension

XML Template

<!-- Associates the structure definition with a collection of Data Elements -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/datadictionary" >
  <!-- from Element: extension -->
 <valueString  value="[string]"/><!-- 0..1 Value of extension
</extension>

JSON Template

{ // Associates the structure definition with a collection of Data Elements
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/datadictionary", // R! 
    "valueString" : "<string>" //Value of extension
  }

Structure

Name	Flags	Card.	Type	Description & Constraints
extension			Extension	URL = http://hl7.org/fhir/StructureDefinition/datadictionary Associates the structure definition with a collection of Data Elements: This extension associates a structure definition with a data dictionary - a collection of data elements that any instance of data that conforms to the structure definition must also conform to. The value of the extension is a uri the defines a query that identifies the collection of relevant data elements This extension can be used on any structure definition that is a constraint on the resource types Observation and Questionnaire. THe profile specifies which elements are mandatory etc, but any elements in a resource that conforms to the structure definition must also conform to one of the defined data elements. For Observation: * Observation.code must be associated with a matching Data Element by DataElement.code. * The structure definition should bind Observation.code to a value set that has the same codes as the collection of data elements (though it can be narrower) * the units and the quantity value should conform to the rules laid down in the matching Data Element For Questionnaire: * todo. Use on element: StructureDefinition
extension		0..*	Extension	Additional Content defined by implementations
url		1..1	uri	identifies the meaning of the extension Fixed Value: http://hl7.org/fhir/StructureDefinition/datadictionary
valueString		0..1	string	Value of extension

XML Template

<!-- Associates the structure definition with a collection of Data Elements -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/datadictionary" >
  <!-- from Element: extension -->
 <valueString  value="[string]"/><!-- 0..1 Value of extension
</extension>

JSON Template

to do