CodeX Radiation Therapy
2.0.0 - STU2 United States of America flag

CodeX Radiation Therapy, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 2.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/codex-radiation-therapy/ and changes regularly. See the Directory of published versions

Extension: Course Involves Reirradiation

Official URL: http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-course-involves-reirradiation Version: 2.0.0
Standards status: Trial-use Active as of 2026-01-27 Computable Name: CourseInvolvesReirradiation
Other Identifiers: OID:2.16.840.1.113883.4.642.40.14.42.6

This flag is true if the radiotherapy course of treatment involves reirradiation of targets or organs at risk that were already irradiated in previous courses.

Context of Use

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Course Involves Reirradiation
... extension 0..0 Extension
... url 1..1 uri "http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-course-involves-reirradiation"
... value[x] 0..1 boolean Course Involves Reirradiation

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Course Involves Reirradiation
... id 0..1 string Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-course-involves-reirradiation"

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type boolean: This flag is true if the radiotherapy course of treatment involves reirradiation of targets or organs at risk that were already irradiated in previous courses.

Differential ViewDifferential View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Course Involves Reirradiation
... extension 0..0 Extension
... url 1..1 uri "http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-course-involves-reirradiation"
... value[x] 0..1 boolean Course Involves Reirradiation

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Course Involves Reirradiation
... id 0..1 string Unique id for inter-element referencing
... extension 0..0 Extension
Slice: Unordered, Open by value:url
... url 1..1 uri "http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-course-involves-reirradiation"

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type boolean: This flag is true if the radiotherapy course of treatment involves reirradiation of targets or organs at risk that were already irradiated in previous courses.

 

Other representations of profile: CSV, Excel, Schematron