The European Health Data Space is the most consequential health IT project on the continent. Most hospitals are not ready.

The European Health Data Space is usually described in terms of patient benefit: a Finnish citizen treated in Portugal, their record available to the clinician in front of them. That benefit is real and it is the smaller half of the story.

The larger half is secondary use. A structured, lawful route for researchers, public health bodies and, under conditions, industry to access pseudonymised European health data at a scale no single country can offer.

The primary use burden

For a hospital, primary use means exposing a defined set of record categories in a specified European format. Patient summaries, prescriptions, imaging reports, laboratory results, discharge reports.

The technical specification is not the difficulty. The difficulty is that most European hospital record estates contain a decade or more of free text, locally coded fields and departmental systems that were never designed to be read by anyone outside the building.

Secondary use is a governance project

Health data access bodies in each member state will adjudicate requests. For a hospital this creates a new obligation: knowing what data it holds, in what quality, with what consent basis. Very few hospital IT departments can currently produce that inventory on request.

The institutions that are ahead started with the inventory rather than with the interface. That sequencing turns out to matter more than any technical decision.

What Nordic systems are doing differently

Denmark, Estonia and Finland enter this with an advantage they have spent twenty years building: national patient identifiers, centralised prescription registries and a population accustomed to digital access to their own records.

That advantage is narrower than it looks. National registries solve identity and availability. They do not solve clinical data quality inside individual hospital departments, which is where most of the remaining work sits.

The practical advice from CIOs

Three points recurred in interviews. Start the data inventory now, because it takes longer than any integration. Treat the patient access portal as a quality control mechanism, since patients reading their own records find errors faster than audits do. And budget the ongoing cost, not just the project cost, because interoperability is a maintained state rather than a delivered one.