Mobile access to Health Documents (MHD)
4.2.3 - Trial-Implementation

Mobile access to Health Documents (MHD), published by IHE IT Infrastructure Technical Committee. This guide is not an authorized publication; it is the continuous build for version 4.2.3 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/IHE/ITI.MHD/ and changes regularly. See the Directory of published versions

## Extension: Publisher organization identity of the SubmissionSet

Official URL: https://profiles.ihe.net/ITI/MHD/StructureDefinition/ihe-sourceId | Version: 4.2.3
Active as of 2025-10-30 | Computable Name: SourceId

The globally unique, immutable, identifier of the entity that contributed the SubmissionSet. When a broker is involved in sending SubmissionSets from a collection of client systems, it shall use a different sourceId for submissions from each separate system to allow for tracking. The format of the identifier is an OID.

Context of Use

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

- Element ID: `List`

Usage info

Usages:

- Use this Extension: MHD SubmissionSet Minimal
- Examples for this Extension: Bundle/ex-ProvideDocumentBundle-addToFolder, Bundle/ex-comprehensiveProvideDocumentBundleComplete, Bundle/ex-comprehensiveProvideDocumentBundleDocument, Bundle/ex-comprehensiveProvideDocumentBundleMultiple... Show 10 more, Bundle/ex-comprehensiveProvideDocumentBundleReplace, Bundle/ex-comprehensiveProvideDocumentBundleSimple, Bundle/ex-minimalProvideDocumentBundleSimple, Bundle/ex-minimalProvideDocumentBundleSimpleContained, Bundle/ex-unContainedComprehensiveProvideDocumentBundleComplete, List/ex-compEmailPackage, List/ex-compSubmissionSetFull, List/ex-compSubmissionSetFullUnContained, List/ex-compSubmissionSetList and List/ex-minimalSubmissionSet
- Search Parameters using this Extension: SourceId

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..* | Extension | Publisher organization identity of the SubmissionSet
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://profiles.ihe.net/ITI/MHD/StructureDefinition/ihe-sourceId"
value[x] |  | 1..1 | Identifier | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Publisher organization identity of the SubmissionSet
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://profiles.ihe.net/ITI/MHD/StructureDefinition/ihe-sourceId"
value[x] |  | 1..1 | Identifier | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Identifier: The globally unique, immutable, identifier of the entity that contributed the SubmissionSet. When a broker is involved in sending SubmissionSets from a collection of client systems, it shall use a different sourceId for submissions from each separate system to allow for tracking. The format of the identifier is an OID.

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Publisher organization identity of the SubmissionSet
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://profiles.ihe.net/ITI/MHD/StructureDefinition/ihe-sourceId"
value[x] |  | 1..1 | Identifier | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Publisher organization identity of the SubmissionSet
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://profiles.ihe.net/ITI/MHD/StructureDefinition/ihe-sourceId"
value[x] |  | 1..1 | Identifier | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Identifier: The globally unique, immutable, identifier of the entity that contributed the SubmissionSet. When a broker is involved in sending SubmissionSets from a collection of client systems, it shall use a different sourceId for submissions from each separate system to allow for tracking. The format of the identifier is an OID.

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()`