Herald Square: How to Resolve the 'Generation Management' Paradox of Indemnity Insurance Held by 40 Million

Indemnity health insurance — held by 40 million Koreans and often called the "second national health insurance" — starkly divides opinion. Critics condemn it as the chief driver of medical waste, arguing it encourages overuse of non-covered services and entrenches moral hazard. Defenders counter that it fills the gaps left by the national health insurance system and shields patients with serious illnesses from financial ruin.

Strictly speaking, both sides are right. The same system that enables excessive medical consumption for some is the last financial lifeline for others. The binary question of "villain or bulwark?" is therefore the wrong one to ask. The right question is: how do we reduce waste while preserving social value?

Successive governments and the insurance industry have focused their efforts on what they call "generation management" — periodic product overhauls, from the first to the fourth generation of indemnity products, that raise co-payments and impose surcharges to curb overuse. But the results have exposed clear limits. Older policyholders and those with pre-existing conditions, who tend to use medical services more frequently, resist switching to newer-generation products because of higher premiums. Meanwhile, only healthier, younger enrollees migrate to the new products, causing the risk profile of older-generation pools to deteriorate sharply — a classic adverse-selection spiral. By the fourth generation, loss ratios had risen not only for non-covered services but also for covered ones, inadvertently encouraging overuse of services reimbursed by the national health insurance system.

Compounding the problem is the relentless expansion of non-covered medical costs, which have been growing at more than 10 percent a year. In areas with high indemnity insurance enrollment, a supplier-induced demand effect is visible: clinics specializing in non-covered treatments are opening at a faster rate. The costs of overuse by a small number of policyholders are passed on to all enrollees through premium increases, prompting healthier members to drop out and leaving the pool older and higher-risk — a dynamic that could ultimately trigger market collapse. The generation-management paradox is not simply a product-design failure. It is a systemic failure in which the medical supply structure, the regulatory and supervisory framework, and policyholder incentives have never been made to work in concert.

The fifth-generation indemnity product represents meaningful progress — it sharply narrows coverage for non-serious, non-covered treatments and ties outpatient co-payment rates to those of the national health insurance system. Loss ratios may stabilize in the short term. But medium- to long-term deterioration cannot be ruled out. Even when specific non-covered items are excluded, providers have historically responded by developing new non-covered services or steering patients toward them through linkages with covered treatments — a balloon effect that has repeated itself across generations. The lesson of the third and fourth generations is clear: restructuring the product alone is not enough. Non-covered service management must advance in parallel.

Two fundamental shifts are needed to resolve the generation-management paradox in indemnity insurance.

The first is a thorough overhaul of the non-covered service management system. This means expanding the conversion of non-covered items into covered ones, standardizing prices, and building a real-time data-sharing system that links non-covered billing information from medical institutions. Problematic non-covered items should be reclassified quickly as managed-coverage items to block the balloon effect, and the currently severed link between public and private insurance claims data must be enshrined in law. Generational product reforms that restrict only policyholder choices while leaving a non-transparent non-covered market untouched will remain a stopgap at best.

The second shift is a paradigm change from after-the-fact penalties to upfront incentives. Where indemnity insurance has until now operated on the principle of penalizing heavy users, it must evolve toward a model that returns tangible benefits to policyholders who actively manage their own health and consume medical resources responsibly. Linking coverage to prevention-focused digital health management and rewarding rational medical consumption with social and economic credit would naturally suppress moral hazard and build a mutually beneficial ecosystem.

Indemnity insurance is no longer just a financial product. It is a vast form of social capital deeply woven into South Korea's medical supply system and the daily lives of its people. It must evolve from an all-encompassing safety net that covers every medical expense without distinction into a smart safety net that selectively covers necessary care.

When insurers move beyond their passive role of paying claims and reinvent themselves as social actors contributing to public health and the efficient allocation of medical resources, a three-way virtuous cycle becomes possible: policyholders gain better health, insurers achieve stable loss ratios, and society averts the depletion of medical resources. The hope is that indemnity insurance held by 40 million people will shed its reputation as the chief cause of medical waste and reestablish itself as a genuine national medical safety net.