Structured Data Capture
4.0.0 - STU 4
Structured Data Capture
4.0.0 - STU 4
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
| Official URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod | Version: 4.0.0 | |||
| Standards status: Trial-use | Maturity Level: 4 | Computable Name: ObservationLinkPeriodExtension | ||
| Other Identifiers: OID:2.16.840.1.113883.4.642.40.17.42.41 | ||||
Indicates the time-period (from 'now') to search for observations that match the Questionnaire.item.code and Questionnaire.subject when pre-populating the QuestionnaireResponse.
Context of Use
This extension may be used on the following element(s)
Questionnaire.item
ElementDefinition
Additional details on the use of this extension can be found on the Questionnaire Population page.
Usage info
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Extension |
0..1 | Extension | Relevant time to pre-pop observation | |
  extension |
0..0 | |||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod" | |
  value[x] |
0..1 | Duration | Value of extension | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension | Relevant time to pre-pop observation | |
 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-observationLinkPeriod" | |
| value[x] |
0..1 | Duration | Value of extension | |
| Documentation for this format | ||||
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension | Relevant time to pre-pop observation | |
| extension |
0..0 | |||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationLinkPeriod" | |
| value[x] |
0..1 | Duration | Value of extension | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension | Relevant time to pre-pop observation | |
| 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-observationLinkPeriod" | |
| value[x] |
0..1 | Duration | Value of extension | |
| Documentation for this format | ||||
Other representations of profile: CSV, Excel, Schematron
| 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() |
IG © 2022+ HL7 International / FHIR Infrastructure. Package hl7.fhir.uv.sdc#4.0.0 based on FHIR 4.0.1. Generated 2025-09-18
Links: Table of Contents |
QA Report
| Version History |
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