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-rendering-criticalExtension | Version: 4.0.0 | |||
| Standards status: Trial-use | Maturity Level: 4 | Computable Name: RenderingCriticalExtension | ||
| Other Identifiers: OID:2.16.840.1.113883.4.642.40.17.42.65 | ||||
Indicates an extension that must be supported by the system presenting the instance for data capture or end-user consumption. If a system does not recognize the extension or cannot implement the functionality defined by the extension, it should display an error message or warning and refrain from presenting the instance to the user or using it when capturing data.
Allows systems to identify extensions that are critical for rendering or interacting with the resource in data capture or consumption scenarios.
Context of Use
This extension is a modifier extension.
This extension may be used on the following element(s)
Resource
If this element appears at the root of a resource, then the expectation applies to all uses of the extension/element throughout the resource. If it appears on another element, the expectation for support of the extension/element only applies to the element on which the rendering-criticalExtension extension appears, and any descendants of that element.
If this extension is present, the instance SHALL populate the Resource.implicitRules element with a hyperlink pointing to this extension definition, with an expectation that systems will adhere to the expectations of this extension when presenting the resource.
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..* | Extension | Extension that must be supported This is a modifier extension |
  extension |
0..0 | |||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-rendering-criticalExtension" | |
  value[x] |
1..1 | canonical() | Value of extension | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
?! | 0..* | Extension | Extension that must be supported This is a modifier extension |
| 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-rendering-criticalExtension" | |
| value[x] |
1..1 | canonical() | Value of extension | |
| Documentation for this format | ||||
This structure is derived from Extension
Summary
Simple Modifier Extension with the type canonical: Indicates an extension that must be supported by the system presenting the instance for data capture or end-user consumption. If a system does not recognize the extension or cannot implement the functionality defined by the extension, it should display an error message or warning and refrain from presenting the instance to the user or using it when capturing data.
Maturity: 4
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
?! | 0..* | Extension | Extension that must be supported This is a modifier extension |
| extension |
0..0 | |||
| url |
1..1 | uri | "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-rendering-criticalExtension" | |
| value[x] |
1..1 | canonical() | Value of extension | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
?! | 0..* | Extension | Extension that must be supported This is a modifier extension |
| 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-rendering-criticalExtension" | |
| value[x] |
1..1 | canonical() | Value of extension | |
| Documentation for this format | ||||
This structure is derived from Extension
Summary
Simple Modifier Extension with the type canonical: Indicates an extension that must be supported by the system presenting the instance for data capture or end-user consumption. If a system does not recognize the extension or cannot implement the functionality defined by the extension, it should display an error message or warning and refrain from presenting the instance to the user or using it when capturing data.
Maturity: 4
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
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