Magentus Practice Management FHIR Implementation Guide
1.2.60 - ci-build

Magentus Practice Management FHIR Implementation Guide - Local Development build (v1.2.60) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

## Extension: Diagnostic Request Display Sequence

Official URL: http://fhir.geniesolutions.io/StructureDefinition/eorders-diagnosticrequest-display-sequence | Version: 1.2.60
Draft as of 2026-04-05 | Computable Name: EOrdersDiagnosticRequestDisplaySequence

A display sequence number for an individual test/service that matches the sequence as seen on a paper order form. This more easily allows for reconciliation of paper and digital requesting data by the filler. Sequence numbers do to need to be contiguous and sequence is low to high.

Context of Use

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

- Element ID: `ServiceRequest`

Usage info

Usages:

- Use this Extension: EOrders Diagnostic Request Base and EOrders Diagnostic Request
- Examples for this Extension: Parameters/view-example-response and ServiceRequest/8dbe2623-c7f4-469e-a10a-a2073a62dd18

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://fhir.geniesolutions.io/StructureDefinition/eorders-diagnosticrequest-display-sequence"
value[x] | S | 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://fhir.geniesolutions.io/StructureDefinition/eorders-diagnosticrequest-display-sequence"
value[x] | S | 1..1 | integer | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type integer: A display sequence number for an individual test/service that matches the sequence as seen on a paper order form. This more easily allows for reconciliation of paper and digital requesting data by the filler. Sequence numbers do to need to be contiguous and sequence is low to high.

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://fhir.geniesolutions.io/StructureDefinition/eorders-diagnosticrequest-display-sequence"
value[x] | S | 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://fhir.geniesolutions.io/StructureDefinition/eorders-diagnosticrequest-display-sequence"
value[x] | S | 1..1 | integer | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type integer: A display sequence number for an individual test/service that matches the sequence as seen on a paper order form. This more easily allows for reconciliation of paper and digital requesting data by the filler. Sequence numbers do to need to be contiguous and sequence is low to high.

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()`