This page is part of the FHIR Core Extensions Registry (v5.3.0-ballot-tc1: Release 5.3) based on FHIR (HL7® FHIR® Standard) v5.0.0. This version is a pre-release. The current official version is 5.2.0. For a full list of available versions, see the Directory of published versions

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Extension: Parameter definition

Official URL: http://hl7.org/fhir/StructureDefinition/cqf-parameterDefinition				Version: 5.3.0-ballot-tc1
Standards status: Trial-use		Maturity Level: 2	Responsible: HL7 International / Clinical Decision Support	Computable Name: ParameterDefinition
Other Identifiers: OID:2.16.840.1.113883.4.642.5.1578

The definition of a parameter that is expected to be provided as part of the invocation of the trigger.

Context of Use

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

• Element ID: TriggerDefinition
• Element ID: ParameterDefinition

In addition, the extension can only be used when this FHIRPath expression is true:

($this is ParameterDefinition).not() or ($this.ofType(ParameterDefinition).type in ('BackboneElement' | 'Extension'))

Usage info

Usages:

• This Extension is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

 

Other representations of profile: CSV, Excel, Schematron

Constraints

Id	Grade	Path(s)	Details	Requirements
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()

R4B

The extension is unchanged in R4B

R4

The extension is unchanged in R4

R3

The extension is represented a little differently in R3:

• Replace the type ParameterDefinition with a set of extensions for the content of the type along with the _datatype extension
• Note: Extensions that have been modified for R3 are still draft while real-world experience is collected

Name	Flags	Card.	Type	Description & Constraints      Filter: Bindings Constraints Obligations
Extension		0..*	Extension	What parameter
Slices for extension		0 ..*	Extension	Extension Slice: Unordered, Open by value:url
extension:_datatype		1..1	(Complex)	DataType name 'ParameterDefinition' from R5 URL: http://hl7.org/fhir/StructureDefinition/_datatype
value[x]		1.. 1	string	Value of extension Fixed Value: ParameterDefinition
extension:name		0..1	Extension	Name used to access the parameter value
extension		0 .. 0
url		1 .. 1	uri	"name"
value[x]		1.. 1	code	Value of extension
extension:use		1..1	Extension	in | out
extension		0 .. 0
url		1 .. 1	uri	"use"
value[x]		1.. 1	code	Value of extension Binding: OperationParameterUse ( required ) : Whether the parameter is input or output.
extension:min		0..1	Extension	Minimum cardinality
extension		0 .. 0
url		1 .. 1	uri	"min"
value[x]		1.. 1	integer	Value of extension
extension:max		0..1	Extension	Maximum cardinality (a number of *)
extension		0 .. 0
url		1 .. 1	uri	"max"
value[x]		1.. 1	string	Value of extension
extension:documentation		0..1	Extension	A brief description of the parameter
extension		0 .. 0
url		1 .. 1	uri	"documentation"
value[x]		1.. 1	string	Value of extension
extension:type		1..1	Extension	What type of value
extension		0 .. 0
url		1 .. 1	uri	"type"
value[x]		1.. 1	code	Value of extension Binding: FHIRTypes ( required ) : List of FHIR types (resources, data types).
extension:profile		0..1	Extension	What profile the value is expected to be
extension		0 .. 0
url		1 .. 1	uri	"profile"
value[x]		1.. 1	uri	Value of extension
url		1 .. 1	uri	"http://hl7.org/fhir/StructureDefinition/cqf-parameterDefinition"
value[x]		0 .. 0
Documentation for this format

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