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 Item Text Hidden

Official URL: https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden | Version: 0.4.0
Draft as of 2025-12-18 | Computable Name: QuestionnaireItemTextHidden
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 indicate that the text of a Questionnaire item should be hidden in the user interface. This is useful for items where the text is not intended to be displayed to the user but is still needed for other processes.

Context of Use

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

- Element ID: `Questionnaire.item.text`

Usage info

Usages:

- Examples for this Extension: AboriginalTorresStraitIslanderHealthCheck, AbsoluteCVDRiskCalculation, AllergiesAdverseReactions, Examination... Show 4 more, MedicalHistoryCurrentProblems, PatientDetails, RegularMedications and SubstanceUse

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 | Don't display text to user
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Don't display text to user
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/QuestionnaireItemTextHidden"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type boolean: This custom extension is used to indicate that the text of a Questionnaire item should be hidden in the user interface. This is useful for items where the text is not intended to be displayed to the user but is still needed for other processes.

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Don't display text to user
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://smartforms.csiro.au/ig/StructureDefinition/QuestionnaireItemTextHidden"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..1 | Extension | Don't display text to user
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/QuestionnaireItemTextHidden"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type boolean: This custom extension is used to indicate that the text of a Questionnaire item should be hidden in the user interface. This is useful for items where the text is not intended to be displayed to the user but is still needed for other processes.

Other representations of profile: CSV, Excel, Schematron

#### 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()`