Digital Referral Prescription Implementation Guide
1.0.0 - STU

Digital Referral Prescription Implementation Guide, published by eHealth Platform. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-be/referral-uhmep/ and changes regularly. See the Directory of published versions

## Extension: BeRelevantInfo

Official URL: https://www.ehealth.fgov.be/standards/fhir/drp/StructureDefinition/be-ext-relevant-info | Version: 1.0.0
Active as of 2026-02-12 | Computable Name: BeRelevantInfo

Relevant clinical information in the context of this prescription concerning for example allergies, kidney function, diabetic. This extension allows the use of an Annotation or codeableConcept but when more detailed information can be given, it is RECOMMENDED to express it as structured as possible using the appropriate elements.

Context of Use

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

- Element ID: `ServiceRequest`

Usage info

Usages:

- This Extension is not used by any profiles in this Implementation Guide

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 | Supporting Information
extension |  | 2..* | Extension | Extension
Slices for extension |  |  |  | Content/Rules for all slices
extension:key | S | 1..1 | Extension | Key of the as a preferably as a SNOMED CT code, e.g. 'allergy', 'diabetes', 'kidney function'
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "key"
value[x] |  | 0..1 | CodeableConcept | Value of extension
coding |  | 1..1 | Coding | Code defined by a terminology system
extension:value | S | 1..1 | Extension | Value of the key preferably as a SNOMED CT code, e.g. 'penicillin allergy', 'diabetes type 2', 'chronic kidney disease stage 3'
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "value"
value[x] |  | 0..1 | CodeableConcept | Value of extension
coding |  | 1..1 | Coding | Code defined by a terminology system
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/drp/StructureDefinition/be-ext-relevant-info"
value[x] |  | 0..0 |  | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Supporting Information
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 2..* | Extension | Extension Slice: Unordered, Open by value:url
extension:key | S | 1..1 | Extension | Key of the as a preferably as a SNOMED CT code, e.g. 'allergy', 'diabetes', 'kidney function'
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "key"
value[x] |  | 0..1 | CodeableConcept | Value of extension
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 1..1 | Coding | Code defined by a terminology system
text | Σ | 0..1 | string | Plain text representation of the concept
extension:value | S | 1..1 | Extension | Value of the key preferably as a SNOMED CT code, e.g. 'penicillin allergy', 'diabetes type 2', 'chronic kidney disease stage 3'
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "value"
value[x] |  | 0..1 | CodeableConcept | Value of extension
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 1..1 | Coding | Code defined by a terminology system
text | Σ | 0..1 | string | Plain text representation of the concept
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/drp/StructureDefinition/be-ext-relevant-info"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: Relevant clinical information in the context of this prescription concerning for example allergies, kidney function, diabetic. This extension allows the use of an Annotation or codeableConcept but when more detailed information can be given, it is RECOMMENDED to express it as structured as possible using the appropriate elements.

- key: CodeableConcept: An Extension
- value: CodeableConcept: An Extension

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Supporting Information
extension |  | 2..* | Extension | Extension
Slices for extension |  |  |  | Content/Rules for all slices
extension:key | S | 1..1 | Extension | Key of the as a preferably as a SNOMED CT code, e.g. 'allergy', 'diabetes', 'kidney function'
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "key"
value[x] |  | 0..1 | CodeableConcept | Value of extension
coding |  | 1..1 | Coding | Code defined by a terminology system
extension:value | S | 1..1 | Extension | Value of the key preferably as a SNOMED CT code, e.g. 'penicillin allergy', 'diabetes type 2', 'chronic kidney disease stage 3'
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "value"
value[x] |  | 0..1 | CodeableConcept | Value of extension
coding |  | 1..1 | Coding | Code defined by a terminology system
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/drp/StructureDefinition/be-ext-relevant-info"
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 | Supporting Information
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 2..* | Extension | Extension Slice: Unordered, Open by value:url
extension:key | S | 1..1 | Extension | Key of the as a preferably as a SNOMED CT code, e.g. 'allergy', 'diabetes', 'kidney function'
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "key"
value[x] |  | 0..1 | CodeableConcept | Value of extension
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 1..1 | Coding | Code defined by a terminology system
text | Σ | 0..1 | string | Plain text representation of the concept
extension:value | S | 1..1 | Extension | Value of the key preferably as a SNOMED CT code, e.g. 'penicillin allergy', 'diabetes type 2', 'chronic kidney disease stage 3'
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "value"
value[x] |  | 0..1 | CodeableConcept | Value of extension
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 1..1 | Coding | Code defined by a terminology system
text | Σ | 0..1 | string | Plain text representation of the concept
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/drp/StructureDefinition/be-ext-relevant-info"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: Relevant clinical information in the context of this prescription concerning for example allergies, kidney function, diabetic. This extension allows the use of an Annotation or codeableConcept but when more detailed information can be given, it is RECOMMENDED to express it as structured as possible using the appropriate elements.

- key: CodeableConcept: An Extension
- value: CodeableConcept: An Extension

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()`