AU eRequesting Implementation Guide
1.0.0 - Working Standard

AU eRequesting Implementation Guide - Downloaded Version 1.0.0 See the Directory of published versions

## Extension: AU eRequesting Display Sequence

Official URL: http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-displaysequence | Version: 1.0.0
Standards status: Trial-use | Maturity Level: 1 | Computable Name: AUeRequestingDisplaySequence
Copyright/Legal: Used by permission of HL7 International, all rights reserved Creative Commons License. HL7 Australia© 2024+; Licensed Under Creative Commons No Rights Reserved.

This extension applies to the ServiceRequest resource and is used to represent the integer assigned to an individual test or service in a ServiceRequest that corresponds with the sequential position in which a test or service appears on a paper request form.

Sorting by display sequence enables more efficient reconciliation of paper and digital request data at the point of service provision.

Context of Use

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

- Element ID: `ServiceRequest`

Usage info

Usages:

- Use this Extension: AU eRequesting Diagnostic Request
- Examples for this Extension: ServiceRequest/order-bg-abs, ServiceRequest/order-fbc-1, ServiceRequest/order-glu-1, ServiceRequest/order-ironstudies... Show 4 more, ServiceRequest/order-obsus-1, ServiceRequest/order-urinemcs-1, ServiceRequest/order-xray-1 and ServiceRequest/order-xray-2

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 | Display sequence
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-displaysequence"
value[x] |  | 1..1 | integer | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Display sequence
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-displaysequence"
value[x] |  | 1..1 | integer | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type integer: This extension applies to the ServiceRequest resource and is used to represent the integer assigned to an individual test or service in a ServiceRequest that corresponds with the sequential position in which a test or service appears on a paper request form.

Sorting by display sequence enables more efficient reconciliation of paper and digital request data at the point of service provision.

Maturity: 1

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Display sequence
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-displaysequence"
value[x] |  | 1..1 | integer | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Display sequence
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org.au/fhir/ereq/StructureDefinition/au-erequesting-displaysequence"
value[x] |  | 1..1 | integer | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type integer: This extension applies to the ServiceRequest resource and is used to represent the integer assigned to an individual test or service in a ServiceRequest that corresponds with the sequential position in which a test or service appears on a paper request form.

Sorting by display sequence enables more efficient reconciliation of paper and digital request data at the point of service provision.

Maturity: 1

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()`