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

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Extension: Number of Prescribed Fractions

The number of prescribed fractions in this scope. This extension SHALL only be present if the treatment is structured as countable fractions, for example in a Radiotherapy Phase Prescription.

Context of Use

This extension may be used on the following element(s)

• Element ID: ServiceRequest
• Element ID: ActivityDefinition

Usage info

Usages:

• Use this Extension: Radiotherapy Phase Prescription and Radiotherapy Plan Prescription
• Examples for this Extension: ServiceRequest/RadiotherapyPhasePrescription-04-Prostate-Phase1, ServiceRequest/RadiotherapyPhasePrescription-05-Prostate-Phase2, ServiceRequest/RadiotherapyPhasePrescription-101-RTTD-LeftBreastTang, ServiceRequest/RadiotherapyPhasePrescription-102-RTTD-LeftBreastBoost... Show 3 more, ServiceRequest/RadiotherapyPhasePrescription-103-RTTD-RightBreastTang, ServiceRequest/RadiotherapyPlanPrescription-04-Prostate-Phase1-Plan1 and ServiceRequest/RadiotherapyPlanPrescription-05-Prostate-Phase2-Plan1

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

• Differential Table
• Snapshot Table
• Statistics/References
• All

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..1	Extension	Number of Prescribed Fractions
extension		0..0		Extension
url		1..1	uri	"http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-fractions-prescribed"
value[x]		1..1	positiveInt	Number of Prescribed Fractions
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..1	Extension	Number of Prescribed Fractions
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-fractions-prescribed"
value[x]		1..1	positiveInt	Number of Prescribed Fractions
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 positiveInt: The number of prescribed fractions in this scope. This extension SHALL only be present if the treatment is structured as countable fractions, for example in a Radiotherapy Phase Prescription.

Differential ViewDifferential View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..1	Extension	Number of Prescribed Fractions
extension		0..0		Extension
url		1..1	uri	"http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-fractions-prescribed"
value[x]		1..1	positiveInt	Number of Prescribed Fractions
Documentation for this format

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
Extension		0..1	Extension	Number of Prescribed Fractions
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-fractions-prescribed"
value[x]		1..1	positiveInt	Number of Prescribed Fractions
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 positiveInt: The number of prescribed fractions in this scope. This extension SHALL only be present if the treatment is structured as countable fractions, for example in a Radiotherapy Phase Prescription.

Other representations of profile: CSV, Excel, Schematron