What Foreign Residents in Korea Should Know Before Applying for Insurance | Duty of Disclosure and 5 Key Questions

Living in Korea often means navigating unfamiliar systems and terminology, from medical appointments and health checkups to insurance applications.

For foreign residents who are applying for insurance in Korea for the first time, Korean insurance application forms and the Duty of Disclosure can feel a little unfamiliar and difficult to understand.

“Do I need to disclose a hospital visit from several years ago?” “Do I need to disclose it if I had an additional medical examination during a health checkup?” “I had surgery several years ago, but I am healthy now. Do I still need to disclose it?” It is completely understandable to have questions about how much of your past medical history or treatment history needs to be disclosed.

In particular, when applying for health insurance coverage such as cancer, brain and heart diagnosis benefits, surgery benefits, and hospitalization benefits, it is important to accurately check your medical history and previous treatment before applying. However, having a previous medical history does not necessarily mean that you need to give up on getting insurance. There are also simplified underwriting plans for people with existing medical conditions available for people who regularly take medication or have a history of hospitalization or surgery.

Therefore, please do not worry in advance and think, “I probably cannot get insurance because I have too much medical history.” Depending on your health condition and medical history, it may be possible to find an insurance plan that allows you to prepare the cancer, brain and heart diagnosis benefits, surgery benefits, and other coverage you want.

Today, I would like to explain, in an easy-to-understand way, the Duty of Disclosure when applying for insurance in Korea and the five key health questions that are checked during the insurance application process.

Note. Even simplified insurance for people with pre-existing medical conditions may be declined depending on the underwriting criteria.

1. Check Your Hospital and Health Checkup History Within the Last 3 Months

① (Within the last 3 months) Have you visited a hospital, including for a health checkup? (Confirmed diagnosis, suspected finding, treatment, hospitalization, surgery, or medication)

The first disclosure question asks whether you have visited a hospital or undergone a health checkup within the last 3 months. This includes: a confirmed diagnosis, a suspected finding, treatment, hospitalization, surgery, and medication. Rather than simply remembering whether you visited a hospital, it is a good idea to check what kind of medical care or health checkup you received during the last 3 months.

Example

For example, suppose you visited a hospital because of a cold within the last 3 months. You may also have visited a hospital because of back pain, received treatment, and been prescribed medication. Or, during a health checkup, you may have been told that there was a suspected finding that required attention.

If you have visited a hospital or undergone a health checkup within the last 3 months, it is important to check what kind of examination, treatment, or medical care you received. In particular, it is helpful to check whether your health checkup results were normal or whether there were any specific findings that required further attention.

2. Check for Additional or Repeat Examinations Within the Last Year

② (Within the last year) Have you received an additional examination or repeat examination following a medical consultation or examination?

The second disclosure question asks whether you have received an additional examination or repeat examination within the last year following a medical consultation or examination. The key points here are additional examinations and repeat examinations. If you received another examination after your initial examination, it is a good idea to check whether this applies to you.

Example

For example, after receiving a health checkup, suppose your doctor told you, “Let’s take a closer look at this area,” and you subsequently underwent an additional examination. Or, after receiving an examination at a hospital, your doctor may have advised you, “Please come back for another examination in a few months,” and you actually underwent a repeat examination.

If you have had an additional or repeat examination after an initial examination, it is important to check whether it took place within the last year.

3. Check Hospitalization, Surgery, Outpatient Treatment, and Medication Within the Last 5 Years

③ (Within the last 5 years) Hospitalization, surgery (including cesarean section), outpatient treatment for 7 days or more for the same condition, or medication prescribed for 30 days or more for the same condition

The third disclosure question asks whether you have been hospitalized or had surgery within the last 5 years, whether you received outpatient treatment for 7 days or more for the same condition, or whether you were prescribed medication for 30 days or more for the same condition. An important point here is the phrase “the same condition.” This question checks the duration of treatment and medication prescriptions related to the same medical condition.

Example ① Surgery

For example, suppose you had surgery 3 years ago because of a gallbladder problem. Even if you are currently healthy and are not receiving any particular treatment, if the surgery took place within the last 5 years, you should check whether it falls under this disclosure question.

Example ② Hospitalization

You may also have received hospital treatment for an illness 2 years ago. Even if you are now healthy and living normally, if you were hospitalized within the last 5 years, it is a good idea to check whether this applies to the disclosure question.

Example ③ Outpatient Treatment

For example, suppose you visited a hospital several times for treatment of a herniated disc 3 years ago. Even if you did not have surgery, if you received outpatient treatment for the same herniated disc condition for 7 days or more, you should check whether this applies.

Example ④ Medication

Another example would be someone who regularly visits a hospital for high blood pressure and was prescribed medication for the same condition for 30 days or more.

Therefore, it is important to check whether, within the last 5 years, you have had hospitalization or surgery, received outpatient treatment for 7 days or more for the same condition, or been prescribed medication for 30 days or more for the same condition.

4. Check Hospitalization and Surgery Within the Last 10 Years

④ (Within the last 10 years) Have you been hospitalized or had surgery?

The fourth disclosure question asks whether you have been hospitalized or had surgery within the last 10 years. For this question, it is important to check whether you have had a history of hospitalization or surgery during the 10-year period, rather than focusing only on whether you are currently healthy.

Example

For example, suppose you had gallbladder surgery 7 years ago. Even if you are currently healthy and are not receiving any particular treatment, because the surgery took place within the last 10 years, you should check whether this applies to the question.

You may also have been hospitalized for an illness 5 years ago. Even if the hospitalization happened some time ago, rather than simply assuming that it is no longer relevant, it is important to review your medical history based on the 10-year period.

5. Check for Major Medical Conditions Diagnosed, Hospitalized, or Treated by Surgery Within the Last 5 Years

⑤ (Within the last 5 years) Have you been diagnosed with, hospitalized for, or undergone surgery for any of the following?

Medical Conditions to Check

• ① Cancer
• ② Leukemia
• ③ High blood pressure
• ④ Angina
• ⑤ Myocardial infarction
• ⑥ Heart valve disease
• ⑦ Liver cirrhosis
• ⑧ Stroke (cerebral hemorrhage or cerebral infarction)
• ⑨ Diabetes
• ⑩ AIDS or HIV carrier status

Example

For example, suppose you were diagnosed with high blood pressure at a hospital 2 years ago and have continued taking medication. Or, you may have been diagnosed with diabetes 4 years ago.

You may also have a history of receiving a cancer diagnosis and treatment, or being diagnosed or treated for cerebral hemorrhage, cerebral infarction, myocardial infarction, or angina. The important point is to check whether the diagnosis, hospitalization, or surgery related to these conditions occurred within the last 5 years.

6. Duty of Disclosure Before Insurance Enrollment for Foreign Residents in Korea | 5 Key Questions

If you are preparing to apply for health insurance in Korea, including cancer, brain and heart diagnosis benefits, surgery benefits, and hospitalization benefits, first check the following five questions:

• ① (Within the last 3 months) Have you visited a hospital, including for a health checkup? (Confirmed diagnosis, suspected finding, treatment, hospitalization, surgery, or medication)
• ② (Within the last year) Have you received an additional examination or repeat examination following a medical consultation or examination?
• ③ (Within the last 5 years) Hospitalization, surgery (including cesarean section), outpatient treatment for 7 days or more for the same condition, or medication prescribed for 30 days or more for the same condition
• ④ (Within the last 10 years) Hospitalization or surgery
• ⑤ (Within the last 5 years) Diagnosis, hospitalization, or surgery
  ① Cancer ② Leukemia ③ High blood pressure ④ Angina ⑤ Myocardial infarction ⑥ Heart valve disease ⑦ Liver cirrhosis ⑧ Stroke (cerebral hemorrhage or cerebral infarction) ⑨ Diabetes ⑩ AIDS or HIV carrier status

7. Why Foreign Residents Should Check Their Medical History Before Applying for Insurance

For foreign residents who are preparing for insurance in Korea for the first time, Korean insurance systems and terminology may feel unfamiliar and somewhat difficult to understand.

If you have a history of medical treatment, you may wonder, “Do I need to disclose something like this?” “I have recovered now. Do I still need to disclose it?” “Do I need to disclose surgery I had in the past?” These are very understandable questions, especially if you are applying for insurance in Korea for the first time.

However, having a medical history does not automatically mean that getting insurance will be difficult. Even if you do not meet the standard insurance underwriting requirements, you may be able to check your eligibility through a simplified underwriting insurance plan for people with existing medical conditions. Therefore, rather than giving up on insurance simply because you have a medical history, it is important to accurately review your current health condition and previous treatment history and explore what type of insurance may be available to you.

8. Foreign Residents in Korea Should Also Check Their Previous Treatment History

Foreign residents in Korea may have received medical treatment not only in Korea but also in another country in the past. For example:

• If you have been diagnosed with a medical condition
• If you have had surgery
• If you have received hospital treatment
• If you have received long-term outpatient treatment or been prescribed specific medication

there may be relevant medical history that you need to review. When preparing to apply for insurance, it is a good idea to check whether any part of your previous medical history falls under the five disclosure questions explained above.

If the treatment happened a long time ago and you do not remember the details accurately, it may also be helpful to check, as far as possible, the date of treatment, the medical condition, and whether you were hospitalized or had surgery.

9. What Matters Most When Applying for Insurance Is Accurate Disclosure

Cancer, brain and heart diagnosis benefits, surgery benefits, and hospitalization benefits are types of health insurance coverage designed to provide financial protection when an illness or medical treatment occurs. Therefore, simply getting your insurance application approved is not the only thing that matters.

To help avoid problems when you actually need to make an insurance claim in the future, it is important to accurately review and disclose your medical history and treatment history when applying.

For foreign residents who may not be familiar with Korean insurance terminology or application forms, it is helpful to review each disclosure question carefully and compare it with your own medical history. When preparing for insurance, comparing premiums and coverage is important, but it is equally important to check the Duty of Disclosure and whether the insurance plan is appropriate for your medical history.

10. Conclusion | You Do Not Need to Worry Too Much Even If You Have a Medical History

For foreign residents in Korea, preparing insurance for the first time may feel unfamiliar and complicated. In particular, if you have a medical history, you may worry, “Maybe I cannot get insurance.” However, having a medical history does not necessarily mean that you cannot get insurance.

People who regularly take medication, have a history of hospitalization or surgery, or have previous treatment history may also be able to check their eligibility through a simplified underwriting insurance plan for people with existing medical conditions. The most important thing is to accurately review your current health condition and previous medical history and find an insurance product and underwriting conditions that fit your situation.

“I probably cannot get insurance because I have too much medical history.” Please do not give up in advance. If you would like to prepare cancer, brain and heart diagnosis benefits, surgery benefits, or other necessary coverage, I can review your medical history and treatment history with you and help you understand what options may be available.

If you are a foreign resident in Korea and are unfamiliar with the Korean insurance system or find the disclosure questions difficult to understand, please do not worry too much. If you are currently taking medication or have a history of medical treatment, hospitalization, or surgery, please feel free to tell me about it. I will first carefully check your situation and explain, in an easy-to-understand way, which insurance options may be available and how you may be able to prepare the coverage you need. If you have any questions, please feel free to contact me anytime. 😊

Mihee Won, Insurance Planner (General Insurance Association of Korea / Korea Life Insurance Association Registration Number: 20240520001059)
Prime Asset Insurance Agency (Insurance Agency Registration Number: 2009058101)
Approved by Prime Asset No.2026-08-4165 (2026-08-18 ~ 2027-08-17)

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