Current Build

Extension: minLength

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

URL for this extension:

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

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

The minimum number of characters that must be present in the simple data type to be considered a "valid" instance.

Context of Use: Use on element: Questionnaire.item, ElementDefinition

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

Extension Content

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1integerURL = http://hl7.org/fhir/StructureDefinition/minLength
minLength: The minimum number of characters that must be present in the simple data type to be considered a "valid" instance.
Use on element: Questionnaire.item, ElementDefinition

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/minLength
minLength: The minimum number of characters that must be present in the simple data type to be considered a "valid" instance.
Use on element: Questionnaire.item, ElementDefinition
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/minLength"
... valueInteger 0..1integerValue of extension

doco Documentation for this format

XML Template

<!-- minLength -->doco

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

JSON Template

{ // minLength
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified orderOpen
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/minLength", // R! 
    "valueInteger" : <integer> //Value of extension
  }

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1integerURL = http://hl7.org/fhir/StructureDefinition/minLength
minLength: The minimum number of characters that must be present in the simple data type to be considered a "valid" instance.
Use on element: Questionnaire.item, ElementDefinition

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/minLength
minLength: The minimum number of characters that must be present in the simple data type to be considered a "valid" instance.
Use on element: Questionnaire.item, ElementDefinition
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/minLength"
... valueInteger 0..1integerValue of extension

doco Documentation for this format

XML Template

<!-- minLength -->doco

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

JSON Template

{ // minLength
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified orderOpen
    ],
    "url" : "http://hl7.org/fhir/StructureDefinition/minLength", // R! 
    "valueInteger" : <integer> //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')]))