DEEN
Since 2008 the Health Information System (TIS) — operated by the Health & Welfare IT Centre TEHIK under the Ministry of Social Affairs — has centralised findings, prescriptions, referrals and billing data. 80 service endpoints span the patient portal, the pharmacy/prescription layer, the medicines register. Measured by the share of the population using it, one of the largest e-health stacks in the world.
The Digilugu services fall into four clusters — patient record (clinical HL7 exchange), e-prescription and the medicines register. Shares are daily averages over Dec 2025 – May 2026. Each cluster has its own detail page.
The most-used service endpoints across all three clusters, as requests per day. The cluster pill links to the detail page.
| # | Service | Cluster | Calls / day | Avg ms |
|---|
How do the 5.38 M calls/day flow from the service clusters to the 16 largest consumers?
Classic clinical rhythm with a morning peak, a lunch dip, a second afternoon peak and an evening batch rise (billing jobs).
What the aggregate data reveals about Estonia's e-health stack.
The HL7 endpoints (digilugu, ehealth, heda) generate about 54 % of all calls — HL7 is the national standard for clinical exchange.
80 distinct service endpoints — from the main HL7 channel to drug-interaction checks in the e-prescription.