# Source CDA Document Identifier - Common Components FHIR Implementation Guide v26.0.0

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# Common Components FHIR Implementation Guide

26.0.0 - Trial
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*  [FHIR IGs](https://implementer.digitalhealth.gov.au/fhir-resources) 
*  [Implementer Hub](https://implementer.digitalhealth.gov.au/) 
*  [Agency site](https://www.digitalhealth.gov.au) 

* [**Table of Contents**](toc.md)
* [**FHIR Artefacts**](artifacts.md)
* **Source CDA Document Identifier**

## Extension: Source CDA Document Identifier 

| | |
| :--- | :--- |
| *Official URL*:http://digitalhealth.gov.au/fhir/cc/StructureDefinition/source-cda-document-identifier | *Version*:26.0.0 |
| Draft as of 2026-07-14 | *Computable Name*:Source_CDA_Document_Identifier |
| **Copyright/Legal**: This content is licensed under a Creative Commons Attribution 4.0 International License. See [https://creativecommons.org/licenses/by/4.0/](https://creativecommons.org/licenses/by/4.0/) | |

The instance identifier of the source CDA clinical document from which this FHIR resource was derived. Carries the `/ClinicalDocument/id` value to preserve source document provenance in a FHIR context.

The purpose of this extension is to record the source CDA document instance identifier on FHIR resources derived from CDA, enabling traceability back to the originating clinical document without conflating provenance with the resource's own business identifiers.

**Context of Use**

**Usage info**

**Usages:**

* Examples for this Extension: [MedicationDispense/medicationdispense-cda-extensions-example](MedicationDispense-medicationdispense-cda-extensions-example.md), [MedicationDispense/medicationdispense-repeat-progression-example-1](MedicationDispense-medicationdispense-repeat-progression-example-1.md), [MedicationDispense/medicationdispense-repeat-progression-example-2](MedicationDispense-medicationdispense-repeat-progression-example-2.md), [MedicationDispense/medicationdispense-repeat-progression-example-3](MedicationDispense-medicationdispense-repeat-progression-example-3.md)... Show 4 more, [MedicationDispense/medicationdispense-repeat-progression-example-4](MedicationDispense-medicationdispense-repeat-progression-example-4.md), [MedicationDispense/medicationdispense-repeat-progression-example-5](MedicationDispense-medicationdispense-repeat-progression-example-5.md), [MedicationDispense/medicationdispense-repeat-progression-example-6](MedicationDispense-medicationdispense-repeat-progression-example-6.md) and [MedicationRequest/medicationrequest-cda-extensions-example](MedicationRequest-medicationrequest-cda-extensions-example.md)

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/resource/au.gov.digitalhealth.cc|current/StructureDefinition/StructureDefinition-source-cda-document-identifier.json)

### Formal Views of Extension Content

 [Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-source-cda-document-identifier.csv), [Excel](StructureDefinition-source-cda-document-identifier.xlsx), [Schematron](StructureDefinition-source-cda-document-identifier.sch) 

#### Constraints

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IG © 2026+ [Australian Digital Health Agency](https://www.digitalhealth.gov.au/). Package au.gov.digitalhealth.cc#26.0.0 based on [FHIR 4.0.1](http://hl7.org/fhir/R4/). Generated 2026-07-14

Links: [Table of Contents](toc.md) | [QA Report](qa.md) | [Version History](https://fhir.digitalhealth.gov.au/dh/history.html) | [Report an issue or propose a change](mailto:help@digitalhealth.gov.au) 

Publisher: [Australian Digital Health Agency](https://www.digitalhealth.gov.au) | ABN: 84 425 496 912, Level 25, 175 Liverpool Street, Sydney, NSW 2000 | Phone: [1300 901 001](tel:1300901001) | Email: [help@digitalhealth.gov.au](mailto:help@digitalhealth.gov.au) | [https://www.digitalhealth.gov.au](https://www.digitalhealth.gov.au) | [Privacy policy](https://www.digitalhealth.gov.au/about-us/policies-privacy-and-reporting/privacy-policy) | [Terms of Use](https://www.digitalhealth.gov.au/about-us/policies-privacy-and-reporting/terms-of-use)

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The Australian Digital Health Agency acknowledges the Traditional Custodians of Country throughout Australia, and their continuing connection to land, sea and community. We pay our respects to them and their cultures, and to Elders, past and present.



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "source-cda-document-identifier",
  "url" : "http://digitalhealth.gov.au/fhir/cc/StructureDefinition/source-cda-document-identifier",
  "version" : "26.0.0",
  "name" : "Source_CDA_Document_Identifier",
  "title" : "Source CDA Document Identifier",
  "status" : "draft",
  "experimental" : false,
  "date" : "2026-07-14T04:17:55+00:00",
  "publisher" : "Australian Digital Health Agency",
  "contact" : [{
    "name" : "Australian Digital Health Agency",
    "telecom" : [{
      "system" : "url",
      "value" : "https://www.digitalhealth.gov.au/"
    },
    {
      "system" : "email",
      "value" : "help@digitalhealth.gov.au"
    }]
  },
  {
    "name" : "Australian Digital Health Agency",
    "telecom" : [{
      "system" : "email",
      "value" : "mailto:help@digitalhealth.gov.au",
      "use" : "work"
    }]
  }],
  "description" : "The instance identifier of the source CDA clinical document from which this FHIR resource was derived. Carries the `/ClinicalDocument/id` value to preserve source document provenance in a FHIR context.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "AU",
      "display" : "Australia"
    }]
  }],
  "purpose" : "The purpose of this extension is to record the source CDA document instance identifier on FHIR resources derived from CDA, enabling traceability back to the originating clinical document without conflating provenance with the resource's own business identifiers.",
  "copyright" : "This content is licensed under a Creative Commons Attribution 4.0 International License. See [https://creativecommons.org/licenses/by/4.0/](https://creativecommons.org/licenses/by/4.0/)",
  "fhirVersion" : "4.0.1",
  "mapping" : [{
    "identity" : "rim",
    "uri" : "http://hl7.org/v3",
    "name" : "RIM Mapping"
  }],
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "type" : "element",
    "expression" : "MedicationDispense"
  },
  {
    "type" : "element",
    "expression" : "MedicationRequest"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "id" : "Extension",
      "path" : "Extension",
      "short" : "Source CDA Document Identifier",
      "definition" : "The instance identifier of the source CDA clinical document from which this FHIR resource was derived. Carries the `/ClinicalDocument/id` value to preserve source document provenance in a FHIR context."
    },
    {
      "id" : "Extension.extension",
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "id" : "Extension.url",
      "path" : "Extension.url",
      "fixedUri" : "http://digitalhealth.gov.au/fhir/cc/StructureDefinition/source-cda-document-identifier"
    },
    {
      "id" : "Extension.value[x]",
      "path" : "Extension.value[x]",
      "short" : "Source CDA document identifier",
      "definition" : "The instance identifier of the source CDA clinical document. Maps from /ClinicalDocument/id with @root expressed as urn:oid:{root} in identifier.value (system = urn:ietf:rfc:3986), and the PCEHR repository OID and display name in identifier.assigner.",
      "type" : [{
        "code" : "Identifier",
        "profile" : ["http://digitalhealth.gov.au/fhir/cc/StructureDefinition/cda-instance-identifier|26.0.0"]
      }]
    }]
  }
}

```
