Silson Medical Insurance: Korea's Indemnity Health Insurance

Think about coming back from a business trip and handing in your receipts to get your money back. You get back only what you actually spent, and you can't pocket more than that.

Older fixed-benefit financial products pay a set amount (for example, 30 million won) in one lump sum when a covered event happens. Silson medical insurance works differently. Within the range set by the policy terms, it uses a reimbursement method: it covers your loss based on the out-of-pocket amount printed on your actual receipt.

For example, say you get tests and a checkup at a hospital and pay 100,000 won as the patient's share. The insurance company deposits the rest into your bank account, after subtracting the deductible set in your policy terms. The size of that deductible depends on when you signed up and on whether the item is covered or non-covered by National Health Insurance.

Because it pays in proportion to the money you actually lost, it is widely used to protect household finances, from small everyday outpatient visits to big hospital stays.

Look closely at a hospital bill and you will see the charges fall into two groups. One is 'covered' items, where Korea's government-run National Health Insurance pays part of the cost. The other is 'non-covered' items, which get no public support, so you pay the full price yourself.

Areas with no public benefit, such as advanced physical therapy, special injections, and non-covered precision tests, can hit a household budget hard. Each hospital also sets prices its own way, so a bill can jump past several hundred thousand won in no time.

Silson medical insurance covers your co-payment on covered items and also this non-covered spending that gets no public support. But some items, such as cosmetic procedures, are excluded in the policy terms, and the coverage differs by the generation of the plan you signed up for. The newest generation of plans cut back a lot on non-covered coverage such as physical therapy and injections for non-severe cases. The idea is that a private insurer shares a large lump-sum cost that one person would otherwise carry alone.

In the end, private silson insurance sits on top of the basic coverage of public health insurance. Together they make a solid two-layer safety net against medical bills.

Silson medical insurance does not cover 100% of everything you spend at the hospital, no strings attached. A device called the 'deductible' (self-pay share) makes you pay a set share of your costs yourself. Many early (first-generation) plans paid hospital stays in full. But since the 2009 standardization of the products, a deductible has been built in by default.

If the plan returned the full amount with no conditions, moral hazard would creep in: people would overuse expensive non-covered services they don't need. Heavy overuse raises the insurers' losses. In the end, the monthly premiums of the honest majority go up too.

To prevent this, silson insurance has been revised again and again, from the first generation to the fifth, which came out in 2026. The newer the plan, the more realistic the self-pay share, and the more it charges higher premiums to people who use a lot of care. That makes the system fairer.

So the deductible and the renewal system are safety devices. They keep the system from going broke, so that all members can share the benefit for a long time.