Two fundamentally different systems
Germany's public and private health insurance systems follow different legal principles.
Public health insurance benefits are defined by social legislation.
This means that:
- Benefits can change
- Coverage can be adjusted
- Services can be restricted through political reforms
Private health insurance works differently.
The contractual principle
In private health insurance, benefits are defined in the insurance contract and tariff conditions.
Once a contract is concluded, these benefits become legally binding.
This creates a high degree of long-term predictability.
What cannot happen
In private health insurance, benefits cannot simply be reduced through political reform.
If a treatment or service is contractually covered, it remains covered — regardless of future legislative changes.
Why this matters over decades
Health insurance is not a short-term product.
Most people remain insured for 40 to 60 years.
Over such long periods, the difference between:
GKV
Politically adjustable benefits
PKV
Contractually guaranteed benefits
can become significant.
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