This page is part of the FHIR Specification (v1.8.0: STU 3 Draft). 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

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON

Extension: At least this many characters

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
• Full Structure
• XML
• JSON
• All

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	integer	URL = http://hl7.org/fhir/StructureDefinition/minLength At least this many characters: 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
Documentation for this format

Fulle Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/minLength At least this many characters: 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
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/minLength"
valueInteger		1..1	integer	Value of extension
Documentation for this format

XML Template

<!-- At least this many characters -->

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

JSON Template

{ // At least this many characters
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/minLength", // R! 
    "valueInteger" : <integer> // R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	integer	URL = http://hl7.org/fhir/StructureDefinition/minLength At least this many characters: 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
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/minLength At least this many characters: 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
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/minLength"
valueInteger		1..1	integer	Value of extension
Documentation for this format

XML Template

<!-- At least this many characters -->

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

JSON Template

{ // At least this many characters
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/minLength", // R! 
    "valueInteger" : <integer> // 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')]))