R4 Ballot #1 #2 (Mixed Normative/Trial use)

This page is part of the FHIR Specification (v3.3.0: (v3.5.0: R4 Ballot 2). #2). 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: minLength

FHIR Infrastructure Work Group   Maturity Level : 1 Informative Use 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.

Comment :

For base64binary, reflects the number of characters representing the encoded data, not the number of bytes of the binary data.

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

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

Extension Content

Summary

Name Flags Card. Type Description & Constraints doco
. . extension minLength 0..1 integer URL = 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” "valid" instance.


Use on Element ID Questionnaire.item or Element ID ElementDefinition

doco Documentation for this format

Full Structure

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 Extension URL = 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” "valid" instance.


Use on Element ID Questionnaire.item or Element ID ElementDefinition
. . . extension 0..0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/minLength"
. . . valueInteger 0..1 integer Value 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 order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/minLength", // R! 
    "valueInteger" : <integer> //Value of extension
  }

Summary

Name Flags Card. Type Description & Constraints doco
. . extension minLength 0..1 integer URL = 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 &ldquo;valid&rdquo; &quot;valid&quot; instance.


Use on Element ID Questionnaire.item or Element ID ElementDefinition

doco Documentation for this format

Full Structure

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 Extension URL = 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 &ldquo;valid&rdquo; &quot;valid&quot; instance.


Use on Element ID Questionnaire.item or Element ID ElementDefinition
. . . extension 0..0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/minLength"
. . . valueInteger 0..1 integer Value 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 order, Open ]
    "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')]) )