Structured Data Capture
4.0.0 - International flag

Structured Data Capture, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 4.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/sdc/ and changes regularly. See the Directory of published versions

Extension: Extract Observation - Category

Official URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observation-extract-category Version: 4.0.0
Standards status: Trial-use Active as of 2025-10-22 Maturity Level: 4 Computable Name: ObservationExtractCategory
Other Identifiers: OID:2.16.840.1.113883.4.642.40.17.42.39

Indicates the Observation.category value(s) that should appear on extracted Observations for the entire Questionnaire or for the current item and descendant items. If this extension appears at multiple levels in the Questionnaire, those defined on lower-level items override those declared on higher-level items.

Context of Use

Additional details on the use of this extension can be found on the Data Extraction page.

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..* Extension Extract the Observation.category value(s) from Questionnaire
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observation-extract-category"
... value[x] 0..1 CodeableConcept Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Extract the Observation.category value(s) from Questionnaire
... id 0..1 string Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observation-extract-category"

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 CodeableConcept: Indicates the Observation.category value(s) that should appear on extracted Observations for the entire Questionnaire or for the current item and descendant items. If this extension appears at multiple levels in the Questionnaire, those defined on lower-level items override those declared on higher-level items.

Maturity: 4

Differential ViewDifferential View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Extract the Observation.category value(s) from Questionnaire
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observation-extract-category"
... value[x] 0..1 CodeableConcept Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..* Extension Extract the Observation.category value(s) from Questionnaire
... id 0..1 string Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observation-extract-category"

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 CodeableConcept: Indicates the Observation.category value(s) that should appear on extracted Observations for the entire Questionnaire or for the current item and descendant items. If this extension appears at multiple levels in the Questionnaire, those defined on lower-level items override those declared on higher-level items.

Maturity: 4

 

Other representations of profile: CSV, Excel, Schematron