DEEN
Tervisekassa (formerly Eesti Haigekassa) finances Estonia's health system. Its kirst subsystem handles insurance-status checks, treatment billing (raviarve), e-sick-leave (töövõimetusleht) and benefit reimbursements. Every doctor's visit in Estonia begins with a kindlustatus call — is this person insured?
The Tervisekassa services fall into four clusters — insurance status (the core), billing, e-sick-leave and benefits/care. Shares are daily averages over Dec 2025 – May 2026. Each cluster has its own detail page.
The most-used service endpoints across all four clusters, as requests per day. The cluster pill links to the detail page.
| # | Service | Cluster | Calls / day | Avg ms |
|---|
How do the 1.87 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 health-insurance layer.
The kindlustatus service is called about 660,000 times per day — at virtually every doctor's visit, pharmacy dispensing and hospital admission. A single question, 'is this person insured?', answered in real time millions of times.
The töövõimetusleht (TVL) is fully digital and mandatory for employers since 2015. Doctors issue it; employers complete the data via eesti.ee, and the fund pays the benefit from day 6.