R4 Ballot #2 (Mixed Normative/Trial use)

This page is part of the FHIR Specification (v3.5.0: R4 Ballot #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: delta

Orders and Observations Work Group Maturity Level: 1InformativeUse Context: Any

URL for this extension: 

http://hl7.org/fhir/StructureDefinition/observation-delta

Status: draft. Extension maintained by: Health Level Seven, Inc. - OO WG

The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.

Context of Use: Use on Element ID Observation

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

Extension Content

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. delta0..1CodeableConceptURL = http://hl7.org/fhir/StructureDefinition/observation-delta
delta: The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.


Use on Element ID Observation

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/observation-delta
delta: The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.


Use on Element ID Observation
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/observation-delta"
... valueCodeableConcept 0..1CodeableConceptValue of extension

doco Documentation for this format

XML Template

<!-- delta -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/observation-delta" >
  <!-- from Element: extension -->
 <valueCodeableConcept><!-- 0..1 CodeableConcept 
     Value of extension --></valueCodeableConcept>
</extension>

JSON Template

{ // delta
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/observation-delta", // R! 
    "valueCodeableConcept" : { CodeableConcept } //Value of extension
  }

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. delta0..1CodeableConceptURL = http://hl7.org/fhir/StructureDefinition/observation-delta
delta: The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.


Use on Element ID Observation

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/observation-delta
delta: The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.


Use on Element ID Observation
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/observation-delta"
... valueCodeableConcept 0..1CodeableConceptValue of extension

doco Documentation for this format

XML Template

<!-- delta -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/observation-delta" >
  <!-- from Element: extension -->
 <valueCodeableConcept><!-- 0..1 CodeableConcept 
     Value of extension --></valueCodeableConcept>
</extension>

JSON Template

{ // delta
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/observation-delta", // R! 
    "valueCodeableConcept" : { CodeableConcept } //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')]))