Prescription Search Support
1.0.0 - STU1

Prescription Search Support, published by eHealth Platform Belgium. 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/pss/ and changes regularly. See the Directory of published versions

## Extension: PSS Rating Extension

Official URL: https://www.ehealth.fgov.be/standards/fhir/pss/StructureDefinition/PSSStructuredRating | Version: 1.0.0
Active as of 2026-01-14 | Computable Name: PSSStructuredRating
Other Identifiers: OID:2.16.840.1.113883.2.51.22.2.42.16

A clinician-friendly rating, or score, for the recommendation; patient-friendly if the recommendation is patient-facing.

Context of Use

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

- Element ID: `Resource`
- Element ID: `RequestGroup.action`
- Element ID: `RequestGroup.action.action`

Usage info

Usages:

- Use this Extension: PSS Response Request Group
- Examples for this Extension: Bundle/getrecommendations-a-response, Bundle/getrecommendations-r-response, RequestGroup/getrecommendations-a-response-group and RequestGroup/getrecommendations-r-response-1

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 | PSS Rating Extension
extension |  | 1..* | Extension | Extension
Slices for extension |  |  |  | Content/Rules for all slices
extension:ratingType | S | 1..1 | Extension | Volume in the body where radiation was delivered
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "ratingType"
value[x] |  | 0..1 | code | Value of extension Binding: Types of rating provided by the PSS system (example)
extension:ratingValue | S | 0..1 | Extension | Total Radiation Dose Delivered
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "ratingValue"
value[x] |  | 0..1 |  | Value of extension
valueQuantity |  |  | Quantity |
valueRatio |  |  | Ratio |
extension:ratingText | S | 0..1 | Extension | Number of Fractions Delivered
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "ratingText"
value[x] |  | 0..1 | markdown | Value of extension
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/pss/StructureDefinition/PSSStructuredRating"
value[x] |  | 0..0 |  | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | PSS Rating Extension
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:ratingType | S | 1..1 | Extension | Volume in the body where radiation was delivered
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "ratingType"
value[x] |  | 0..1 | code | Value of extension Binding: Types of rating provided by the PSS system (example)
extension:ratingValue | S | 0..1 | Extension | Total Radiation Dose Delivered
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "ratingValue"
value[x] |  | 0..1 |  | Value of extension
valueQuantity |  |  | Quantity |
valueRatio |  |  | Ratio |
extension:ratingText | S | 0..1 | Extension | Number of Fractions Delivered
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "ratingText"
value[x] |  | 0..1 | markdown | Value of extension
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/pss/StructureDefinition/PSSStructuredRating"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: A clinician-friendly rating, or score, for the recommendation; patient-friendly if the recommendation is patient-facing.

- ratingType: code: A BodyStructure resource representing the body structure treated, for example, Chest Wall Lymph Nodes.
- ratingValue: Quantity, Ratio: The total amount of radiation delivered to this volume within the scope of this dose delivery.
- ratingText: markdown: The number of fractions delivered to this volume.

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | PSS Rating Extension
extension |  | 1..* | Extension | Extension
Slices for extension |  |  |  | Content/Rules for all slices
extension:ratingType | S | 1..1 | Extension | Volume in the body where radiation was delivered
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "ratingType"
value[x] |  | 0..1 | code | Value of extension Binding: Types of rating provided by the PSS system (example)
extension:ratingValue | S | 0..1 | Extension | Total Radiation Dose Delivered
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "ratingValue"
value[x] |  | 0..1 |  | Value of extension
valueQuantity |  |  | Quantity |
valueRatio |  |  | Ratio |
extension:ratingText | S | 0..1 | Extension | Number of Fractions Delivered
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "ratingText"
value[x] |  | 0..1 | markdown | Value of extension
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/pss/StructureDefinition/PSSStructuredRating"
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 | PSS Rating Extension
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:ratingType | S | 1..1 | Extension | Volume in the body where radiation was delivered
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "ratingType"
value[x] |  | 0..1 | code | Value of extension Binding: Types of rating provided by the PSS system (example)
extension:ratingValue | S | 0..1 | Extension | Total Radiation Dose Delivered
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "ratingValue"
value[x] |  | 0..1 |  | Value of extension
valueQuantity |  |  | Quantity |
valueRatio |  |  | Ratio |
extension:ratingText | S | 0..1 | Extension | Number of Fractions Delivered
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "ratingText"
value[x] |  | 0..1 | markdown | Value of extension
url |  | 1..1 | uri | "https://www.ehealth.fgov.be/standards/fhir/pss/StructureDefinition/PSSStructuredRating"
Documentation for this format

This structure is derived from Extension

Summary

Complex Extension: A clinician-friendly rating, or score, for the recommendation; patient-friendly if the recommendation is patient-facing.

- ratingType: code: A BodyStructure resource representing the body structure treated, for example, Chest Wall Lymph Nodes.
- ratingValue: Quantity, Ratio: The total amount of radiation delivered to this volume within the scope of this dose delivery.
- ratingText: markdown: The number of fractions delivered to this volume.

Other representations of profile: CSV, Excel, Schematron

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Extension.extension:ratingType.​value[x] | Base | example | Types of rating provided by the PSS system | 📦1.0.0 | This IG

#### 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()`