Clinical Practice Guidelines
2.0.0 - STU2 International flag

This page is part of the Clinical Guidelines (v2.0.0: STU2) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Extension: CPG Feature Expression Extension

Official URL: http://hl7.org/fhir/uv/cpg/StructureDefinition/cpg-featureExpression Version: 2.0.0
Active as of 2024-11-26 Computable Name: CPGFeatureExpression
Other Identifiers: OID:2.16.840.1.113883.4.642.40.48.42.60

Defines formal computational semantics for the feature, combining the inference and assertion expressions. This is typically only required if the feature is of a different type than the profile (e.g. a boolean feature).

Context of Use

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

  • Element ID StructureDefinition

Usage info

Usage:

Formal Views of Extension Content

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

This structure is derived from Extension

Summary

Simple Extension of type Expression: Defines formal computational semantics for the feature, combining the inference and assertion expressions. This is typically only required if the feature is of a different type than the profile (e.g. a boolean feature).

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..* Extension CPG Feature Expression Extension
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/cpg/StructureDefinition/cpg-featureExpression"
... value[x] 0..1 Expression Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..* Extension CPG Feature Expression Extension
... id 0..1 string Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/cpg/StructureDefinition/cpg-featureExpression"

doco Documentation for this format

This structure is derived from Extension

Summary

Simple Extension of type Expression: Defines formal computational semantics for the feature, combining the inference and assertion expressions. This is typically only required if the feature is of a different type than the profile (e.g. a boolean feature).

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..* Extension CPG Feature Expression Extension
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/cpg/StructureDefinition/cpg-featureExpression"
... value[x] 0..1 Expression Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..* Extension CPG Feature Expression Extension
... id 0..1 string Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/cpg/StructureDefinition/cpg-featureExpression"

doco Documentation for this format

 

Other representations of profile: CSV, Excel, Schematron

Constraints

IdGradePath(s)DetailsRequirements
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()