CDA R2 and the eHDSI templates

HL7 CDA R2 is the XML standard behind most clinical documents in Europe. The eHDSI project publishes the CDA templates for the European Patient Summary, ePrescription, eDispensation and the Original Clinical Documents (laboratory, discharge and imaging reports), which are the documents behind the EHDS priority categories. This guide shows the CDA R2 core model and those templates as structure: what each element and attribute is, how often it may occur, which values are fixed and which value set a code comes from.

eHDSI documents

Document level templates of the eHDSI release below. Each one is applied to a ClinicalDocument that declares its id in templateId.

Document	Template id	Effective	Items	Schematron rules	EHDS category
eHDSI eDispensation	`1.3.6.1.4.1.12559.11.10.1.3.1.1.2`	2024-04-19	175	306	Electronic dispensation
eHDSI ePrescription	`1.3.6.1.4.1.12559.11.10.1.3.1.1.1`	2024-04-19	161	281	Electronic prescription
eHDSI ePrescription PDF embedded	`1.3.6.1.4.1.12559.11.10.1.3.1.1.6`	2024-04-19	165	285	Electronic prescription
eHDSI OrCD Hospital Discharge Report	`1.3.6.1.4.1.12559.11.10.1.3.1.1.9`	2024-04-19	201	360	Discharge report
eHDSI OrCD Laboratory Result	`1.3.6.1.4.1.12559.11.10.1.3.1.1.8`	2024-04-19	201	360	Medical test results
eHDSI OrCD Medical Images	`1.3.6.1.4.1.12559.11.10.1.3.1.1.11`	2024-04-19	206	365	Medical imaging studies and reports
eHDSI OrCD Medical Imaging Report	`1.3.6.1.4.1.12559.11.10.1.3.1.1.10`	2024-04-19	201	360	Medical imaging studies and reports
eHDSI Patient Summary	`1.3.6.1.4.1.12559.11.10.1.3.1.1.3`	2024-04-19	238	520	Patient summary
eHDSI Patient Summary PDF embedded	`1.3.6.1.4.1.12559.11.10.1.3.1.1.7`	2024-04-19	229	404	Patient summary

EHDS priority categories and eHDSI documents

Regulation (EU) 2025/327 names six priority categories. The eHDSI documents below carry those categories in CDA; the FHIR profiles for the same categories are in the EHDS guide.

EHDS category	eHDSI documents
Patient summary	eHDSI Patient Summary eHDSI Patient Summary PDF embedded
Electronic prescription	eHDSI ePrescription eHDSI ePrescription PDF embedded
Electronic dispensation	eHDSI eDispensation
Medical imaging studies and reports	eHDSI OrCD Medical Imaging Report eHDSI OrCD Medical Images
Medical test results	eHDSI OrCD Laboratory Result
Discharge report	eHDSI OrCD Hospital Discharge Report

Check your documents

Paste a CDA R2 document as XML and see where it breaks the CDA R2 model or the eHDSI template it declares. It runs in your browser and nothing is uploaded.

The validator checks XML syntax, the CDA R2 core model and the eHDSI templates (cardinality, fixed values, forbidden elements, included templates and bindings to listed value sets). It does not run Schematron.

Open the CDA validator

Browse

What sits behind the validator.

All eHDSI templates: documents, headers, sections and entries

Value sets that the templates bind to

Classes of the CDA R2 core model

Sources and licences

Everything here is read from two published sources and compiled to structure only. Descriptions, examples and Schematron messages are not copied: every page links to the source page where they are. Code lists are shown only for value sets of up to 500 codes and without display names; larger sets, such as SNOMED CT and LOINC subsets, are linked instead. Check the licence of each source before you reuse its content, and use the code systems under their own licences.

HL7 CDA R2 core model: hl7.cda.uv.core 2.0.3-sd Open the published source
eHDSI CDA templates (ART-DECOR): Release v10.0.0, release date 2026-05-12 Open the published source art-decor.ehdsi.eu
Read on: 2026-11-02
SHA-256 of the runtime package: e2b3ea4ef62baa46bcd596f8b4a650668760734b5b80d9420d9ae540c6631bc5

This guide is informational. It is not affiliated with HL7 International or the eHDSI project and is not a certification of conformity.