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Extension: Focal Subject

URL for this extension:

http://hl7.org/fhir/StructureDefinition/observation-focal-subject

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

The focus of an observation when not the patient of record (i.e different from Observation.subject). For example, the focal subject may be a fetus, or a donor.

Context of Use: Use on element: Observation

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

Extension Content

• Summary
• Full Structure
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Summary

Name	Flags	Card.	Type	Description & Constraints
modifierExtension		0..1	CodeableConcept	URL = http://hl7.org/fhir/StructureDefinition/observation-focal-subject Focal Subject: The focus of an observation when not the patient of record (i.e different from Observation.subject). For example, the focal subject may be a fetus, or a donor. Use on element: Observation
Documentation for this format

Fulle Structure

Name	Flags	Card.	Type	Description & Constraints
modifierExtension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/observation-focal-subject Focal Subject: The focus of an observation when not the patient of record (i.e different from Observation.subject). For example, the focal subject may be a fetus, or a donor. Use on element: Observation
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/observation-focal-subject"
valueCodeableConcept		1..1	CodeableConcept	Value of extension Binding: Focal Subject Codes (example)
Documentation for this format

XML Template

<!-- Focal Subject -->

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

JSON Template

{ // Focal Subject
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/observation-focal-subject", // R! 
    "valueCodeableConcept" : { CodeableConcept } // R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
modifierExtension		0..1	CodeableConcept	URL = http://hl7.org/fhir/StructureDefinition/observation-focal-subject Focal Subject: The focus of an observation when not the patient of record (i.e different from Observation.subject). For example, the focal subject may be a fetus, or a donor. Use on element: Observation
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
modifierExtension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/observation-focal-subject Focal Subject: The focus of an observation when not the patient of record (i.e different from Observation.subject). For example, the focal subject may be a fetus, or a donor. Use on element: Observation
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/observation-focal-subject"
valueCodeableConcept		1..1	CodeableConcept	Value of extension Binding: Focal Subject Codes (example)
Documentation for this format

XML Template

<!-- Focal Subject -->

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

JSON Template

{ // Focal Subject
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/observation-focal-subject", // R! 
    "valueCodeableConcept" : { CodeableConcept } // 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')]))