AU Base Implementation Guide
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## Extension: HL7 V2 Assigning Authority

Official URL: http://hl7.org.au/fhir/StructureDefinition/au-assigningauthority | Version: 6.0.1-ci-build
Standards status: Trial-use | Maturity Level: 3 | Computable Name: HL7V2AssigningAuthority
Copyright/Legal: HL7 Australia© 2018+; Licensed Under Creative Commons No Rights Reserved.

This extension applies to the Identifier data type and is used to represent HL7 V2 assigning authority details for HL7 V2 identification for routing.

Context of Use

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

- Element ID: `Identifier`

This content provides the values for a sender to use where assigning authority components should be valued in fields in HL7 messages.

Example HL7 V2 fields that will use this are:

- PRD-7 Provider Identifiers (CM)
- PV1-9 Consulting Doctor (XCN)
- OBR-28 Result copies to (XCN)

### Usage Notes

Usage info

Usages:

- Examples for this Extension: PractitionerRole/example4

You can also check for usages in the FHIR IG Statistics

Changes since version 6.0.0:

- No changes

### 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 | HL7 V2 assigning authority
Slices for extension |  | 0..* | Extension | Extension Slice: Unordered, Open by value:url
extension:namespace-id |  | 0..1 | Extension | Application Identifier
url |  | 1..1 | uri | "namespace-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id |  | 0..1 | Extension | Universal Identifier Value
url |  | 1..1 | uri | "universal-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id-type |  | 0..1 | Extension | Type scheme of universal-id
url |  | 1..1 | uri | "universal-id-type"
value[x] |  | 0..1 | string | Value of extension
url |  | 1..1 | uri | "http://hl7.org.au/fhir/StructureDefinition/au-assigningauthority"
value[x] |  | 0..0 |  | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | HL7 V2 assigning authority
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..* | Extension | Extension Slice: Unordered, Open by value:url
extension:namespace-id |  | 0..1 | Extension | Application Identifier
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "namespace-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id |  | 0..1 | Extension | Universal Identifier Value
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "universal-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id-type |  | 0..1 | Extension | Type scheme of universal-id
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "universal-id-type"
value[x] |  | 0..1 | string | Value of extension
url |  | 1..1 | uri | "http://hl7.org.au/fhir/StructureDefinition/au-assigningauthority"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: This extension applies to the Identifier data type and is used to represent HL7 V2 assigning authority details for HL7 V2 identification for routing.

- namespace-id: string: An Extension
- universal-id: string: Identifier values following the universal-id-type defined scheme.
- universal-id-type: string: Provides scheme to use to interpret the universal-id value .e.g. GUID, ISO etc. see HL7 V2 Table 0301 - Universal ID type.

Maturity: 3

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | HL7 V2 assigning authority
Slices for extension |  | 0..* | Extension | Extension Slice: Unordered, Open by value:url
extension:namespace-id |  | 0..1 | Extension | Application Identifier
url |  | 1..1 | uri | "namespace-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id |  | 0..1 | Extension | Universal Identifier Value
url |  | 1..1 | uri | "universal-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id-type |  | 0..1 | Extension | Type scheme of universal-id
url |  | 1..1 | uri | "universal-id-type"
value[x] |  | 0..1 | string | Value of extension
url |  | 1..1 | uri | "http://hl7.org.au/fhir/StructureDefinition/au-assigningauthority"
value[x] |  | 0..0 |  | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | HL7 V2 assigning authority
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..* | Extension | Extension Slice: Unordered, Open by value:url
extension:namespace-id |  | 0..1 | Extension | Application Identifier
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "namespace-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id |  | 0..1 | Extension | Universal Identifier Value
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "universal-id"
value[x] |  | 0..1 | string | Value of extension
extension:universal-id-type |  | 0..1 | Extension | Type scheme of universal-id
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "universal-id-type"
value[x] |  | 0..1 | string | Value of extension
url |  | 1..1 | uri | "http://hl7.org.au/fhir/StructureDefinition/au-assigningauthority"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: This extension applies to the Identifier data type and is used to represent HL7 V2 assigning authority details for HL7 V2 identification for routing.

- namespace-id: string: An Extension
- universal-id: string: Identifier values following the universal-id-type defined scheme.
- universal-id-type: string: Provides scheme to use to interpret the universal-id value .e.g. GUID, ISO etc. see HL7 V2 Table 0301 - Universal ID type.

Maturity: 3

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()`