CH RAD-Order (R4)
0.1.0 - STU 1 Ballot

CH RAD-Order (R4), published by HL7 Switzerland. This is not an authorized publication; it is the continuous build for version 0.1.0). This version is based on the current content of and changes regularly. See the Directory of published versions


This Implementation Guide is under STU ballot by HL7 Switzerland until September 24th, 2021 midnight. Please add your feedback via the ‘Propose a change’-link in the footer on the page where you have comments.


The CH RAD-Order Implementation Guide defines the content of a radiolgy order and covers the follwing use cases:

  • Referral for imaging
  • Referral for radiological intervention
  • Request for second opinion
  • Request for remote reporting
  • Request for precedent imaging results

CH RAD-Order is intended for use in directional communication as well as for the use in the SWISS EPR.

Download: You can download this Implementation Guide in NPM format from here.


This Implementation Guide uses FHIR defined resources. For details on HL7 FHIR R4 see

Because the Implementation Guide relies heavily on the FHIR Resources Questionnaire and QuestionnaireResponse, forms are addressed here as Questionnaires.

This Implementation Guide is derived from the Order & Referral by Form (ORF) Implementation Guide CH ORF which relies on HL7 Structured Data Capture Implementation Guide, see SDC IG and uses the Swiss Core Profiles, see CH Core.

Applications claiming for conformance with the CH RAD-Order Implementation Guide shall:

  • Render (and in case of the Questionnaire filler allow for data entry) all elements of a questionnaire in the user interface (e.g. on screen, in print).
  • For Clinical Information: Grouping of items and the order of items within shall be adequately reproduced according to the Questionnaire.

Actors, transcations and security considerations are covered in the corresponding sections of CH ORF.


CH RAD-Order allows coding of the requested imaging service by means of LOINC/RSNA RADIOL0GY PLAYBOOK.

Systems such as PIS and KIS may not yet support RADIOLGY PLAYBOOK. For this reason, CH RAD-Order allows coding of the relevant dimensions by means of RADLEX.

The relevant dimensions are defined by PLAYBOOK such as:

  • Modality
  • Region
  • Focus
  • Laterlity
  • Maneuvre
  • Guidance for action (used for interventions)

Coding of these dimensions is done by RADLEX terms.

Value sets and coding are preliminary and not yet approved by eHealth Suisse.