Smart Health Checks
0.4.0 - ci-build

Smart Health Checks, published by AEHRC CSIRO. This guide is not an authorized publication; it is the continuous build for version 0.4.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/aehrc/smart-forms-ig/ and changes regularly. See the Directory of published versions

## Extension: Questionnaire Initial Expression Repopulatable

Official URL: https://smartforms.csiro.au/ig/StructureDefinition/questionnaire-initialExpression-repopulatable | Version: 0.4.0
Draft as of 2025-12-18 | Computable Name: QuestionnaireInitialExpressionRepopulatable
Copyright/Legal: Copyright © 2022+ Australian Government Department of Health and Aged Care - All rights reserved. This content is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. See https://creativecommons.org/licenses/by-sa/4.0/.

This custom extension is used to add a UI component that allows a user to repopulate an individual Questionnaire item with the latest data from the FHIR server. This is useful for updating specific items without having to refresh the entire form.

Context of Use

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

- Element ID: `Questionnaire.item`

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

`(type = 'string' or type = 'text' or type = 'integer' or type = 'decimal') and (repeats=false or repeats.empty()) and (extension.where(url = 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-initialExpression').exists())`

Usage info

Usages:

- Examples for this Extension: AboriginalTorresStraitIslanderHealthCheck and AbsoluteCVDRiskCalculation

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.

- Differential Table
- Snapshot Table
- Statistics/References
- All

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Questionnaire Initial Expression Repopulatable
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://smartforms.csiro.au/ig/StructureDefinition/questionnaire-initialExpression-repopulatable"
value[x] |  | 1..1 | code | Value of extension Binding: Questionnaire Repopulation Behavior (required)
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Questionnaire Initial Expression Repopulatable
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "https://smartforms.csiro.au/ig/StructureDefinition/questionnaire-initialExpression-repopulatable"
value[x] |  | 1..1 | code | Value of extension Binding: Questionnaire Repopulation Behavior (required)
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type code: This custom extension is used to add a UI component that allows a user to repopulate an individual Questionnaire item with the latest data from the FHIR server. This is useful for updating specific items without having to refresh the entire form.

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Questionnaire Initial Expression Repopulatable
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://smartforms.csiro.au/ig/StructureDefinition/questionnaire-initialExpression-repopulatable"
value[x] |  | 1..1 | code | Value of extension Binding: Questionnaire Repopulation Behavior (required)
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Questionnaire Initial Expression Repopulatable
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "https://smartforms.csiro.au/ig/StructureDefinition/questionnaire-initialExpression-repopulatable"
value[x] |  | 1..1 | code | Value of extension Binding: Questionnaire Repopulation Behavior (required)
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type code: This custom extension is used to add a UI component that allows a user to repopulate an individual Questionnaire item with the latest data from the FHIR server. This is useful for updating specific items without having to refresh the entire form.

Other representations of profile: CSV, Excel, Schematron

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Extension.value[x] | Base | required | Questionnaire Repopulation Behavior | 📦0.4.0 | This IG

#### 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()`