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Extension: The length of time for radiation exposure

URL for this extension:

http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration

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

The duration of exposure to radiation for this study.

Context of Use: Use on element: ImagingStudy

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

Extension Content

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• Full Structure
• XML
• JSON
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Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Duration	URL = http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration The length of time for radiation exposure: The duration of exposure to radiation for this study. Use on element: ImagingStudy
Documentation for this format

Fulle Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration The length of time for radiation exposure: The duration of exposure to radiation for this study. Use on element: ImagingStudy
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration"
valueQuantity	∑ I	1..1	Duration	Value of extension qty-3: If a code for the unit is present, the system SHALL also be present drt-1: There SHALL be a code if there is a value and it SHALL be an expression of time. If system is present, it SHALL be UCUM.
Documentation for this format

XML Template

<!-- The length of time for radiation exposure -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration" >
  <!-- from Element: extension -->
 <valueQuantity><!--  1..1 Quantity Value of extension --></valueQuantity>
</extension>

JSON Template

{ // The length of time for radiation exposure
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration", // R! 
    "valueQuantity" : { Quantity(Duration) } // C? R! Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Duration	URL = http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration The length of time for radiation exposure: The duration of exposure to radiation for this study. Use on element: ImagingStudy
Documentation for this format

Full Structure

Name	Flags	Card.	Type	Description & Constraints
extension		0..1	Extension	URL = http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration The length of time for radiation exposure: The duration of exposure to radiation for this study. Use on element: ImagingStudy
extension		0..0
url		1..1	uri	"http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration"
valueQuantity	∑ I	1..1	Duration	Value of extension qty-3: If a code for the unit is present, the system SHALL also be present drt-1: There SHALL be a code if there is a value and it SHALL be an expression of time. If system is present, it SHALL be UCUM.
Documentation for this format

XML Template

<!-- The length of time for radiation exposure -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration" >
  <!-- from Element: extension -->
 <valueQuantity><!--  1..1 Quantity Value of extension --></valueQuantity>
</extension>

JSON Template

{ // The length of time for radiation exposure
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration", // R! 
    "valueQuantity" : { Quantity(Duration) } // C? R! Value of extension
  }

Constraints

• qty-3: On Extension.valueQuantity: If a code for the unit is present, the system SHALL also be present (xpath on f:Extension/f:valueQuantity: not(exists(f:code)) or exists(f:system))
• drt-1: On Extension.valueQuantity: There SHALL be a code if there is a value and it SHALL be an expression of time. If system is present, it SHALL be UCUM. (xpath on f:Extension/f:valueQuantity: (f:code or not(f:value)) and (not(exists(f:system)) or f:system/@value='http://unitsofmeasure.org'))