This page is part of the FHIR Specification (v1.1.0: STU 3 Ballot 1). 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

This is a frozen snapshot of the FHIR specification created for the purpose of balloting the GAO implementation Guide. It includes draft changes that may be part of the future DSTU 2.1 release but further change is expected. Readers should focus solely on the GAO implementation content, and FHIR DSTU 2 for other purposes.

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON

Extension: Standard Deviation (same units as the quantity)

URL for this extension:

http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty

Status: draft. Extension maintained by: Health Level Seven International (Modeling and Methodology)

The primary measure of variance/uncertainty of the value (the square root of the sum of the squares of the differences between all data points and the mean).

Context of Use: Use on data type: Quantity

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	decimal	URL = http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty Standard Deviation (same units as the quantity): The primary measure of variance/uncertainty of the value (the square root of the sum of the squares of the differences between all data points and the mean). Use on data type: Quantity
Documentation for this format

Fulle Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty Standard Deviation (same units as the quantity): The primary measure of variance/uncertainty of the value (the square root of the sum of the squares of the differences between all data points and the mean). Use on data type: Quantity
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty"
valueDecimal		1..1	decimal	Value of extension
Documentation for this format

XML Template

<!-- Standard Deviation (same units as the quantity) -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty" >
  <!-- from Element: extension -->
 <valueDecimal value="[decimal]"/><!-- 1..1 Value of extension -->
</extension>

JSON Template

{ // Standard Deviation (same units as the quantity)
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty", // R! 
    "valueDecimal" : <decimal> // R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	decimal	URL = http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty Standard Deviation (same units as the quantity): The primary measure of variance/uncertainty of the value (the square root of the sum of the squares of the differences between all data points and the mean). Use on data type: Quantity
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty Standard Deviation (same units as the quantity): The primary measure of variance/uncertainty of the value (the square root of the sum of the squares of the differences between all data points and the mean). Use on data type: Quantity
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty"
valueDecimal		1..1	decimal	Value of extension
Documentation for this format

XML Template

<!-- Standard Deviation (same units as the quantity) -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty" >
  <!-- from Element: extension -->
 <valueDecimal value="[decimal]"/><!-- 1..1 Value of extension -->
</extension>

JSON Template

{ // Standard Deviation (same units as the quantity)
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty", // R! 
    "valueDecimal" : <decimal> // R! Value of extension
  }