DSTU2

This page is part of the FHIR Specification (v0.0.82: (v1.0.2: DSTU 1). 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

Extension Extension: The length of time for radiation exposure - Definition

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

Summary

Name Flags Card. Type Description & Constraints doco
.. 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

doco Documentation for this format

Fulle Structure

identifies the meaning of the extension Fixed Value: Value
Name Flags Card. Type Description & Constraints doco
. . 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..* Extension 0 .. 0 Additional Content defined by implementations
. . . url 1..1 uri http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration "http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration"
. . valueDuration . valueQuantity ∑ I 0..1 1..1 Duration A length of extension time
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.

doco Documentation for this format

XML Template 

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

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

 <valueQuantity><!-- ?? 1..1 Quantity A length of time --></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! A length of time

  }

Summary

Name Flags Card. Type Description & Constraints doco
.. 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

doco Documentation for this format

Full Structure

identifies the meaning of the extension Fixed Value: Value
Name Flags Card. Type Description & Constraints doco
. . 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..* Extension 0 .. 0 Additional Content defined by implementations
. . . url 1..1 uri http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration "http://hl7.org/fhir/StructureDefinition/imagingstudy-radiationDuration"
. . valueDuration . valueQuantity ∑ I 0..1 1..1 Duration A length of extension time
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.

doco Documentation for this format

XML Template 

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

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

 <valueQuantity><!-- ?? 1..1 Quantity A length of time --></valueQuantity>

</extension>

JSON Template

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

 

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') )