European Health Data Space (EHDS): A Complete Guide for Healthcare Organizations

What Is the European Health Data Space?

The European Health Data Space (EHDS) is a landmark piece of EU legislation designed to create a unified framework for how health data is accessed, shared, and used across Europe. It represents one of the most significant regulatory developments in healthcare data management since the GDPR.

Adopted by the European Parliament and Council, the EHDS establishes rules for two distinct but related areas:

Primary use of health data: Giving individuals greater control over their electronic health records (EHRs) and enabling cross-border access to health data for treatment purposes.
Secondary use of health data: Creating a governed framework for using health data in research, innovation, policy-making, and regulatory activities.

For healthcare organizations, pharmaceutical companies, clinical research organizations, and health technology providers, the EHDS will reshape how they collect, store, process, and share health data.

Why the EHDS Matters

Healthcare data in Europe has historically been fragmented. Each member state has its own systems, standards, and rules for health data, making cross-border healthcare delivery and research needlessly difficult. The EHDS aims to solve this by:

Standardizing electronic health records across all EU member states using the European Electronic Health Record Exchange Format (EEHRxF).
Empowering patients with the right to access, share, and control their health data across borders.
Enabling researchers and innovators to access anonymized and pseudonymized health data through a secure, governed process.
Strengthening data protection by building on GDPR principles with sector-specific safeguards for health data.

EHDS Timeline and Implementation Milestones

The EHDS follows a phased implementation approach. Here are the key dates organizations should be tracking:

Milestone	Expected Date
Regulation entered into force	2025
Member states designate Health Data Access Bodies	2026-2027
Primary use provisions become applicable	2027-2028
Secondary use provisions become applicable	2028-2029
Full cross-border EHR exchange operational	2029-2030
EHR system certification requirements enforceable	2029-2030

While some of these dates may shift as member states work through implementation, the direction is clear: organizations need to begin preparing now.

Primary Use: What Changes for Healthcare Providers

Patient Rights and EHR Access

Under the EHDS, patients will have the right to:

Access their electronic health records in a standardized format
Share their EHR data with healthcare providers in any EU member state
Restrict access to specific categories of health data
Obtain information about who has accessed their data

Healthcare providers will be required to:

Register health data in electronic format using the EEHRxF standard
Make health data available through national contact points for cross-border access
Implement access control mechanisms that respect patient preferences
Ensure interoperability with the EU-wide MyHealth@EU infrastructure

EHR System Requirements

EHR systems must be certified as EHDS-compliant, support the EEHRxF standard (with HL7 FHIR expected to play a central role), and log all data access events for patient transparency.

Secondary Use: Research, Innovation, and Policy

The secondary use framework is where the EHDS introduces the most novel concepts. It creates a governed pathway for organizations to access health data for purposes such as:

Scientific research
Development of medical products and devices
Training AI and machine learning models
Public health surveillance and policy-making
Regulatory activities by medicines agencies

Health Data Access Bodies

Each member state must designate Health Data Access Bodies (HDABs) to receive and evaluate data access applications, issue data permits, provide access through secure processing environments, and monitor compliance.

Secure Processing Environments

Researchers will not receive copies of health data. Instead, they access data within secure processing environments (SPEs) that prevent downloading, log all queries, apply re-identification controls, and keep data within EU jurisdiction.

Data Categories Available for Secondary Use

The EHDS covers electronic health records, claims and reimbursement data, disease registries, genomic data, clinical trial data, medical device data, public health datasets, and administrative health data.

Impact on Clinical Trials

The EHDS will significantly affect how clinical trials are designed and conducted in Europe.

Easier Access to Real-World Data

Researchers will be able to access real-world health data through HDABs to:

Identify suitable patient populations for trial recruitment
Conduct feasibility studies using anonymized datasets
Generate real-world evidence to supplement trial data
Support post-market surveillance and pharmacovigilance

Cross-Border Trial Coordination

For multinational clinical trials, the EHDS creates opportunities and obligations:

Standardized data formats will reduce the cost and complexity of harmonizing data across sites in different member states.
Data sharing agreements between trial sponsors and HDABs will need to comply with both the EHDS and the Clinical Trials Regulation.
Pseudonymization requirements will be strengthened, with specific technical standards for how trial data is de-identified.

Compliance Considerations for Trial Sponsors

Clinical trial sponsors should evaluate:

Whether their current data management systems support EEHRxF standards
How their consent frameworks align with EHDS requirements for secondary use
Whether their data hosting infrastructure meets the security and residency requirements of secure processing environments
How to manage the intersection of EHDS obligations with GxP requirements

Preparing for EHDS Compliance

Healthcare organizations should begin taking concrete steps now, even though full enforcement is still several years away.

Step 1: Assess Your Current Data Landscape

Conduct a comprehensive audit of:

What health data you collect and process
Where it is stored (on-premises, cloud, hybrid)
What formats and standards you currently use
How data flows between systems and across borders

Step 2: Plan for Interoperability

Begin transitioning to standardized data formats, particularly HL7 FHIR. Evaluate your EHR systems against anticipated EHDS certification requirements.

Step 3: Review Data Hosting and Security

The EHDS places strong emphasis on data remaining within EU jurisdiction and being protected by robust security measures. Organizations should verify that their hosting providers:

Offer EU-based data residency
Implement encryption that meets EHDS security standards
Can support the technical requirements of secure processing environments

Step 4: Establish Governance Frameworks

Build internal governance structures that address:

Data access request handling
Consent management
Pseudonymization and anonymization processes
Logging and audit trail requirements

Step 5: Engage with National Authorities

As member states establish their HDABs and national implementation plans, healthcare organizations should engage proactively to understand local requirements and timelines.

How Data Sovereignty Supports EHDS Compliance

The EHDS reinforces a principle that has been growing in importance across EU data regulation: data sovereignty. Health data must be processed within controlled environments, protected by strong technical measures, and kept within EU jurisdiction.

Solutions like GlobalDataShield, which provide EU-sovereign hosting with zero-knowledge encryption, align naturally with these requirements. By ensuring that health data is stored and processed in infrastructure where even the hosting provider cannot access the underlying data, organizations can build a compliance foundation that satisfies both GDPR and EHDS requirements.

Conclusion

The European Health Data Space represents a fundamental shift in how health data is managed across Europe. While full implementation is still unfolding, the regulatory direction is clear, and the compliance requirements are substantial. Healthcare organizations, clinical trial sponsors, and health technology providers that begin preparing now will be best positioned to meet their obligations and take advantage of the opportunities the EHDS creates.