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Extension Standard Deviation (same units as the quantity) - Definition

URL for this extension: 


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

Status: draft. Extension maintained by: HL7

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

Structure

Name Flags Card. Type Description & Constraints doco
. . extension 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..* Extension Additional Content defined by implementations
. . . url 1..1 uri identifies the meaning of the extension
Fixed Value: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
. . . valueDecimal 0..1 decimal Value of extension

XML Template 

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

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty" >
  <!-- from Element: extension -->
 <valueDecimal  value="[decimal]"/><!-- 0..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> //Value of extension
  }

Structure

Name Flags Card. Type Description & Constraints doco
. . extension 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..* Extension Additional Content defined by implementations
. . . url 1..1 uri identifies the meaning of the extension
Fixed Value: http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty
. . . valueDecimal 0..1 decimal Value of extension

XML Template 

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

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty" >
  <!-- from Element: extension -->
 <valueDecimal  value="[decimal]"/><!-- 0..1 Value of extension
</extension>

JSON Template

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