In other OECD countries, private health insurers supply different types of “secondary coverage” for health spending (see Box 4 for definitions). Depending on the country, it may include services that are uncovered by the public system such as luxury care, elective care, long-term care, dental care, pharmaceuticals, rehabilitation, alternative or complementary medicine, etc., Typically, duplicate cover does not exempt individuals from contributing to public health insurance. In the HSC Survey, only five countries - the Czech Republic, Estonia, Iceland, Norway and Turkey - reported that private health insurance does not provide a secondary source of coverage for health and the share of private health insurance in total health spending is null or almost null.