Release 5 Draft Ballot

This page is part of the FHIR Specification (v4.6.0: R5 Draft Ballot). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4 R3 R2

Extension: maxSize

FHIR Infrastructure Work Group

Maturity Level: 1

Informative

Use Context: Any

URL for this extension:

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

Status: draft. Extension maintained by: Health Level Seven International (FHIR Infrastructure)

For attachment answers, indicates the maximum size an attachment can be.

Comment:

This extension only has meaning if the element has a type of Attachment. For questionnaires, see additional guidance and examples in the SDC implementation guide.

Context of Use: Use on Element ID Questionnaire.item or Element ID ElementDefinition

Summary

Name	Flags	Card.	Type	Description & Constraints
maxSize		0..1	decimal	URL = http://hl7.org/fhir/StructureDefinition/maxSize maxSize: For attachment answers, indicates the maximum size an attachment can be. Use on Element ID Questionnaire.item or Element ID ElementDefinition
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/maxSize maxSize: For attachment answers, indicates the maximum size an attachment can be. Use on Element ID Questionnaire.item or Element ID ElementDefinition
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/maxSize"
value[x]	1..1	decimal	Value of extension
Documentation for this format

XML Template

<!-- maxSize -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/maxSize" >
  <!-- from Element: extension -->
 <valueDecimal value="[decimal]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // maxSize
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/maxSize", // R! 
    "valueDecimal" : <decimal> // C? R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
maxSize		0..1	decimal	URL = http://hl7.org/fhir/StructureDefinition/maxSize maxSize: For attachment answers, indicates the maximum size an attachment can be. Use on Element ID Questionnaire.item or Element ID ElementDefinition
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/maxSize maxSize: For attachment answers, indicates the maximum size an attachment can be. Use on Element ID Questionnaire.item or Element ID ElementDefinition
extension	0..0
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/maxSize"
value[x]	1..1	decimal	Value of extension
Documentation for this format

XML Template

<!-- maxSize -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/maxSize" >
  <!-- from Element: extension -->
 <valueDecimal value="[decimal]"/><!--  1..1 Value of extension -->
</extension>

JSON Template

{ // maxSize
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/maxSize", // R! 
    "valueDecimal" : <decimal> // C? 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)