How Does South Korea’s Health Insurance Work for International Students?
International students on D-2 (degree) and D-4 (language) visas in South Korea must be enrolled in the National Health Insurance Service (NHIS / 국민건강보험). This has been mandatory since March 2021. In 2026 the student premium is KRW 79,320 a month (~€50; 2025: KRW 76,390). You pay 30% of the covered cost at clinics and pharmacies, 40–60% for outpatient care at hospitals and 20% as an inpatient. D-2 students are covered from entry — on a first entry, from the date of alien registration (Residence Card, formerly Alien Registration Card / 외국인등록증). D-4 language students are enrolled after 6 months of residence. If you have unpaid premiums, Korea Immigration generally limits your stay extension to 6 months or less.
South Korea had 253,434 international students in higher education in 2025 (Ministry of Education). Its hospitals are modern and well equipped, and virtually every clinic, hospital and pharmacy works with NHIS. This guide walks you through NHIS enrollment, what’s covered, what’s not, how co-pays work and when supplementary insurance makes sense. For visa requirements and general study info, check our South Korea country guide.
Understanding the NHIS System
South Korea operates a single-payer national health insurance system managed by the National Health Insurance Service (NHIS / 국민건강보험공단). Unlike countries with parallel public and private systems, South Korea funnels virtually all residents — citizens and foreigners alike — through one national insurer. Foreign subscribers receive the same insurance benefits as Korean citizens.
Key Facts About Korean Healthcare
| Feature | Detail |
|---|---|
| System type | Single-payer national insurance (NHIS) |
| Student premium (2026) | KRW 79,320/month for D-2 and D-4 students (50% reduction) |
| Start of cover | D-2: from entry (first entry: from alien registration); D-4: after 6 months |
| Co-pay, outpatient | 30% at clinics, 40–60% at hospitals |
| Co-pay, inpatient | 20% |
| Prescription drugs | 30% at the pharmacy |
| Free general health check-up | Every 2 years from age 20 |
| Annual co-pay cap | Yes — out-of-pocket ceiling (본인부담상한제) |
How NHIS Coverage Works
NHIS covers a defined list of medical services at virtually every clinic, hospital and pharmacy in South Korea. When you visit a doctor, the facility bills NHIS directly for its share; you pay your co-pay at the counter. Treatments NHIS does not cover (non-covered items, 비급여) and upgraded rooms are billed to you in full.
The co-pay percentage varies by type of facility:
| Service | Your Co-Pay |
|---|---|
| Outpatient at clinic (의원) | 30% |
| Outpatient at hospital (병원) | 40% |
| Outpatient at general hospital (종합병원) | 50% |
| Outpatient at tertiary hospital (상급종합병원) | 60%, plus the full consultation fee |
| Inpatient (hospital stay) | 20% |
| Prescription drugs (pharmacy) | 30% |
To get the NHIS rate at a tertiary (university) hospital, you need a referral letter (요양급여의뢰서) from a clinic or hospital — without one, you pay the full cost, except in emergencies and a few other cases. Start at a local clinic: it has the lowest co-pay and can refer you if needed.
The Out-of-Pocket Ceiling
NHIS has a built-in safety net: the out-of-pocket ceiling (본인부담상한제). If your co-pays for covered treatment in one year exceed the cap for your income bracket, NHIS refunds the excess. Non-covered treatments and room upgrades don’t count towards the cap. The current caps are published on nhis.or.kr.
NHIS Enrollment: Step-by-Step
Step 1: Arrive and Register at Your University
Your university’s international student office will guide you through initial registration. Keep your passport, admission letter, and visa documents accessible. Many universities hold an orientation in the first weeks that covers alien registration and NHIS.
Step 2: Get Your Residence Card (외국인등록증)
You must register as a foreign resident within 90 days of arrival at your local immigration office (출입국·외국인관서). You then receive your Residence Card (formerly Alien Registration Card, ARC). It’s your ID for banking, phone contracts, insurance and more — and for D-2 students on a first entry, the date of alien registration is the date NHIS cover starts.
What to bring:
- Passport with D-2 or D-4 visa
- Application form (available at the immigration office or on the HiKorea portal)
- One colour photo, 3.5 × 4.5 cm
- Documents for your visa type (e.g. your university enrollment certificate)
- Fee: KRW 30,000
After you apply: The immigration office tells you how and when you’ll receive your card.
Some universities arrange group applications for new international students — check with your international office. This simplifies the process significantly.
Step 3: NHIS Enrollment Is Automatic
You don’t need to apply separately: D-2 students are enrolled automatically from entry (on a first entry, from the date of alien registration), and D-4 language students after 6 months of residence. NHIS then sends to your registered address:
- An enrollment notice
- Your premium bills (고지서)
You can manage your account on nhis.or.kr or in the NHIS app The건강보험 (Korean only). For help in English, call the NHIS foreign-language line 033-811-2000.
Step 4: Pay Monthly Premiums
The 2026 monthly premium for international students is KRW 79,320 (~€50) (2025: KRW 76,390). Each month’s premium is due in advance, by the 25th of the previous month. Payment options:
- Automatic bank debit (자동이체) — set this up at your bank. Easiest option.
- Bank transfer — to the virtual account number on your bill
- Convenience store payment — take your bill (고지서) to a convenience store
- KakaoPay — pay on your phone
Critical: If you miss payments, NHIS restricts your benefits until you pay in full — in the meantime, you pay the full cost of treatment. Korea Immigration checks your NHIS payment status: with unpaid premiums, stay extensions are generally limited to 6 months or less.
Step 5: Use Your Insurance
Show your Residence Card at any hospital, clinic or pharmacy. Virtually every medical facility in South Korea works with NHIS — you don’t need to find “in-network” providers like in some other countries.
What NHIS Covers
Covered (with Co-Pay)
- GP visits at clinics (의원) — 30% co-pay
- Specialist consultations — 40–60% co-pay at hospitals; tertiary hospitals need a referral letter
- Hospital stays — 20% co-pay for standard rooms
- Surgery — covered at NHIS rates (20% co-pay as an inpatient)
- Prescription medication — 30% co-pay at pharmacies
- Basic dental — one scaling a year (from age 19), extractions, root canal treatment, X-rays
- Pregnancy care — prenatal visits, delivery and postnatal care, plus a pregnancy voucher worth KRW 1,000,000
- Mental health — psychiatry consultations and medication are covered; counselling with a psychologist (상담) mostly isn’t
- General health check-up — free every 2 years from age 20
- Emergency care — covered; your co-pay depends on the hospital and on whether you are admitted
- CT scans, MRIs, blood tests — covered when medically necessary; some uses are billed in full
What NHIS Does NOT Cover
These are the gaps where supplementary insurance becomes relevant:
- Dental prosthetics — implants are covered only from age 65 (two per lifetime); bridges and crowns are generally billed in full
- Orthodontics — braces, aligners, retainers
- Cosmetic procedures — any elective cosmetic surgery or dermatology
- Upgraded hospital rooms — NHIS covers standard multi-bed rooms; the extra cost of a better room is billed in full
- Some traditional Korean medicine (한의학) — acupuncture is partially covered, but many herbal treatments are not
- Vision care — glasses and contact lenses are not covered
- Experimental treatments and non-listed drugs — new drugs not yet on the NHIS list
- Medical evacuation / repatriation — no coverage for transport back to your home country
Dental Coverage: The Details
NHIS dental coverage is better than many students expect, but limited:
| Treatment | NHIS Covered? | What You Pay |
|---|---|---|
| Scaling (치석 제거) | Yes — once a year from age 19 | Co-pay |
| Fillings | Partly — some filling materials are not covered | Co-pay, or the full price for non-covered materials |
| Extractions | Yes | Co-pay |
| X-rays | Yes | Co-pay |
| Root canal | Yes | Co-pay |
| Implants | Only from age 65 (two per lifetime) | Full price under 65 |
| Orthodontics | No | Full price |
Ask the clinic before treatment whether a procedure is covered (급여) or non-covered (비급여) — non-covered dental work is billed at the clinic’s own prices.
For more about dental coverage abroad, read our dental insurance guide for international students.
D-2 vs. D-4 Visa: Insurance Differences
International students in South Korea hold one of two visa types:
| Feature | D-2 (Academic Study) | D-4 (Language Training) |
|---|---|---|
| Purpose | Degree programs (Bachelor, Master, PhD) | Korean language courses at university institutes |
| NHIS enrollment | From entry (first entry: from alien registration) | After 6 months of residence |
| Monthly premium (2026) | KRW 79,320 | KRW 79,320 |
| Gap before NHIS starts | Arrival until alien registration | First 6 months |
| Condition for the 50% reduction | Annual income up to KRW 3.6 million, taxable property up to KRW 135 million | Same |
Both visa types are enrolled in NHIS, but at different times. D-4 students on language courses shorter than 6 months are never enrolled, so they need private or university cover for their whole stay. Global Korea Scholarship (GKS) students pay the premium themselves — see below.
How Much Does Healthcare Actually Cost?
Fees for covered treatment follow a national fee schedule, so your bill depends mainly on the type of facility and on whether a treatment is covered:
| Cost Type | What You Pay |
|---|---|
| Covered outpatient care | 30–60% of the covered cost, depending on the facility |
| Covered inpatient care | 20% of the covered cost |
| Covered prescriptions | 30% at the pharmacy |
| Non-covered treatments (비급여) | 100%, at the provider’s own prices |
| Upgraded hospital rooms | The full extra cost |
| Your annual total of covered co-pays | Capped by the out-of-pocket ceiling |
Compared with paying out of pocket, NHIS makes everyday care very affordable. The costs to watch are non-covered items: ask for an estimate before larger treatments, especially dental work, scans and room upgrades.
Navigating Korean Hospitals and Clinics
Types of Medical Facilities
South Korea has a tiered healthcare system:
- Local clinics (의원 / uiwon): Small, neighborhood practices. Your first stop for colds, minor injuries, prescriptions, and referrals. Lowest co-pay (30%).
- Hospitals (병원 / byeongwon): Mid-size facilities with specialists and some inpatient beds. Outpatient co-pay 40%.
- General hospitals (종합병원 / jonghap byeongwon): Large hospitals with full departments. Outpatient co-pay 50%.
- Tertiary hospitals (상급종합병원): Top-tier university hospitals like Seoul National University Hospital, Severance Hospital (Yonsei), Samsung Medical Center, and Asan Medical Center. Outpatient co-pay 60% plus the full consultation fee; you need a referral letter for the NHIS rate.
Finding English-Speaking Doctors
Many large hospitals in Seoul, Busan and other cities have international patient centers (국제진료센터). These centers typically provide:
- English-speaking coordinators
- Help with medical records and certificates
- Help with insurance paperwork
- Appointment scheduling in English
Major hospitals with international services:
- Seoul National University Hospital (SNUH)
- Severance Hospital (Yonsei University)
- Samsung Medical Center
- Asan Medical Center
- Seoul St. Mary’s Hospital (Catholic University)
At smaller clinics and outside the big cities, English may be limited, so a Korean-speaking friend or a translation app helps. The 1330 Korea Travel Helpline offers interpretation over the phone in English and other languages.
Pharmacies (약국 / Yakguk)
Korean pharmacies are separate from clinics and hospitals. After a doctor’s visit, take your prescription to any nearby pharmacy. Pharmacists fill prescriptions and collect your co-pay.
Key facts:
- Pharmacies are easy to find in every neighborhood
- Many common medications (pain relievers, cold medicine, antacids) are available without prescription
- Prescription drugs require a prescription from your doctor
- NHIS co-pay on prescriptions: 30% (higher for some prescriptions from general and tertiary hospitals)
- Look for the sign 약 (medicine)
University Health Centers
Many Korean universities operate on-campus health centers (보건센터 / bogeon senteo) that may provide:
- Basic consultations for enrolled students
- Vaccinations
- Mental health counseling
- First aid and minor treatment
- Health certificate issuance (건강진단서) for part-time jobs
Services vary by university — ask your international office what your campus offers.
University health centers are a good first stop for non-urgent issues, and the staff are used to working with international students.
GKS Scholarship Students: What’s Covered
The Global Korea Scholarship (GKS / 정부초청 외국인장학금), formerly KGSP, is South Korea’s flagship scholarship for international students. Under the 2026 guidelines for graduate degrees (GKS-G), it pays airfare, tuition, Korean language training and a monthly allowance (KRW 16,560,000 a year in the degree program, KRW 14,400,000 a year during the Korean language program). The guidelines list no medical insurance benefit, and insurance premiums related to entering Korea are not covered.
Paying NHIS as a GKS Scholar
GKS scholars are enrolled in NHIS like other D-2 students and pay the premium (KRW 79,320 a month in 2026) from their allowance.
Check with your university’s GKS coordinator about:
- How and when to pay your NHIS premiums
- Whether your university offers any additional group insurance
- Cover during the Korean language program (typically 1 year before the degree program)
Cover NHIS Doesn’t Provide
The scholarship adds no insurance on top of NHIS. If you want the following, you need a private plan:
- Medical evacuation
- Repatriation
- Non-covered dental work
- Cover when you travel outside Korea
Do You Need Supplementary Insurance?
NHIS is comprehensive for everyday healthcare. But co-pays of 20–60% and coverage gaps mean some students benefit from supplementary coverage.
When NHIS Alone Is Enough
- You’re healthy and rarely visit doctors
- You’re on a tight budget and can absorb small co-pays
- Your university health center covers basic needs
- You have savings to cover the co-pay for a potential hospital stay
When Supplementary Insurance Makes Sense
- NHIS doesn’t cover you yet — D-4 students in their first 6 months, D-2 students between arrival and alien registration
- You want coverage for dental prosthetics, orthodontics, or vision
- You want an upgraded hospital room during any hospital stay
- You want medical evacuation / repatriation coverage
- You want English-language claim support and coordination
- You have a chronic condition requiring frequent specialist visits (co-pays add up)
- You want mental health coverage beyond NHIS basics
Supplementary Insurance Options
| Option | Monthly Cost | What It Adds |
|---|---|---|
| University plan | Varies by university | Cover before NHIS starts and for costs NHIS leaves to you |
| Korean private insurer (e.g. Samsung Fire & Marine, DB Insurance) | Varies by insurer and age | Reimbursement of NHIS co-pays and some non-covered costs, depending on the policy |
| International insurer | Varies by insurer and age | English-language support, medical evacuation, cover outside Korea |
For most students, NHIS alone provides solid coverage. If you have specific needs (dental work, chronic conditions, cover before NHIS starts, evacuation), compare a few plans and check exactly what each one pays on top of NHIS.
Penalties for Non-Enrollment or Non-Payment
South Korea takes NHIS compliance seriously:
- Non-enrollment: D-2 and D-4 students are enrolled automatically by law. Opting out is possible only in narrow cases defined by law (equivalent coverage under foreign law, a foreign insurance policy or an employer’s contract).
- Late premium payments: A late-payment surcharge is added, and NHIS restricts your benefits until you pay in full — until then, you pay the full cost of treatment.
- Shorter stay extensions: Korea Immigration checks your NHIS payment status. With unpaid premiums, your stay extension is generally limited to 6 months or less (rule in force since August 2019).
- Payment before you leave: Unpaid premiums stay on record, so settle them before you leave Korea.
Set up automatic debit at your bank in your first weeks. It eliminates the risk of forgetting a payment.
Emergency Numbers and Resources
| Service | Number | Notes |
|---|---|---|
| Emergency (fire/ambulance) | 119 | Fire and ambulance |
| Police | 112 | Police emergencies |
| Korea Travel Helpline | 1330 | Interpretation and help in English and other languages |
| NHIS Customer Service | 1577-1000 | Korean |
| NHIS foreign-language line | 033-811-2000 | English and other languages |
| Immigration Contact Center | 1345 | Multilingual help with visas and your stay |
Note: 1339 is the infectious-disease hotline of the Korea Disease Control and Prevention Agency (KDCA), not a general medical helpline. For interpretation, call 1330; in an emergency, call 119.
Timeline: From Arrival to Full Coverage
| When | Action |
|---|---|
| Before arrival | Arrange travel or private insurance for the time before NHIS starts |
| Week 1 | Arrive, attend university orientation, collect documents |
| Week 1-2 | Open bank account (needed for NHIS auto-debit and daily life) |
| Within 90 days | Register as a foreign resident at the immigration office — for D-2 students on a first entry, NHIS cover starts on this date |
| After registration | Receive your NHIS enrollment notice and first premium bill |
| Every month | Pay by the 25th for the following month — ideally by auto-debit |
Gap coverage: NHIS doesn’t cover you before alien registration (D-2, first entry) or during your first 6 months (D-4). Some universities offer group plans for this period; otherwise, travel insurance or international coverage can bridge the gap.
Practical Tips for International Students
Before You Leave
- Check the HiKorea portal (hikorea.go.kr) for how to book your alien registration visit
- Bring copies of your medical records and prescription details in English
- Get a dental check-up at home — NHIS dental cover is limited, and implants and orthodontics are billed in full
- Arrange travel or private insurance for the time before NHIS starts
After Arrival
- Attend every university orientation session — they cover alien registration and NHIS
- Open a Korean bank account early (e.g. Hana, Woori, KB, or Shinhan bank) — you need it for auto-debit
- Report any change of address — NHIS sends your bills to your registered address
- Download the NHIS app (The건강보험, Korean only) for managing your account
- Save 119 (emergency), 1330 (interpretation) and 1345 (immigration) in your phone
- Learn basic medical Korean: 아파요 (it hurts), 약 (medicine), 처방전 (prescription), 보험 (insurance)
Saving Money on Healthcare
- Use local clinics (의원) instead of hospitals for everyday issues — lower co-pay (30% vs. 40-60%)
- Visit your university health center first for basic care
- Get your free general health check-up through NHIS (every 2 years from age 20)
- Ask whether a treatment is covered (급여) before you agree to it — non-covered items cost you 100%
- Remember the NHIS out-of-pocket ceiling — if your covered co-pays exceed the annual cap, NHIS refunds the excess
For a broader look at how to choose health insurance as an international student, our comparison guide covers the decision framework.
Frequently Asked Questions
Is NHIS really mandatory for all international students in South Korea?
Yes, for students on D-2 and D-4 visas. Since March 2021 they are enrolled automatically: D-2 degree students from entry (on a first entry, from the date of alien registration), D-4 language students after 6 months of residence. Opting out is possible only in narrow cases defined by law (equivalent coverage under foreign law, a foreign insurance policy or an employer’s contract). Unpaid premiums restrict your benefits and can limit your next stay extension to 6 months or less.
How much does NHIS cost per month?
In 2026, students pay KRW 79,320 a month (~€50), or KRW 951,840 a year (~€600). That is 50% of KRW 158,640 — the average premium that foreign residents pay as a minimum. The reduction applies to D-2 and D-4 students with annual income up to KRW 3.6 million and taxable property up to KRW 135 million. In 2025 the premium was KRW 76,390. GKS scholars pay it too: the 2026 GKS-G guidelines list no insurance benefit.
What happens if I can’t afford the NHIS premiums?
Contact NHIS as early as possible (1577-1000, or 033-811-2000 for English) and ask your university’s international office for help. You can’t simply stop paying — unpaid premiums restrict your benefits until you pay in full, a late-payment surcharge is added, and Korea Immigration generally limits your stay extension to 6 months or less while premiums are unpaid.
Can I use NHIS at any hospital in South Korea?
Yes. Virtually all hospitals, clinics and pharmacies in South Korea work with NHIS, including university hospitals — there’s no “in-network” vs. “out-of-network” distinction like in the US system. For tertiary (university) hospitals, you need a referral letter from a clinic or hospital to get the NHIS rate, except in emergencies. Treatments NHIS doesn’t cover and upgraded rooms are billed in full.
How does the co-pay system work?
When you visit a healthcare provider, NHIS pays its share of the covered cost directly to the facility, and you pay the rest at the counter. For outpatient care you pay 30% at local clinics and pharmacies, 40% at hospitals, 50% at general hospitals and 60% (plus the full consultation fee) at tertiary university hospitals. Inpatient stays have a co-pay of 20%. Your annual co-pays for covered care are capped by the out-of-pocket ceiling.
Does NHIS cover mental health services?
NHIS covers psychiatry consultations and psychiatric medication at the normal co-pay rates. Therapy with a clinical psychologist (상담심리사) is more limited under NHIS — many counselling sessions are not covered. Many universities run counselling centers for students; ask what yours offers. For ongoing private therapy, check whether a private plan reimburses it.
What medical Korean vocabulary should I learn?
Start with these essentials: 아파요 (it hurts), 열이 나요 (I have a fever), 약국 (pharmacy), 처방전 (prescription), 병원 (hospital), 의원 (clinic), 응급실 (emergency room), 보험 (insurance), 알레르기 (allergy), 두통 (headache), 배탈 (stomachache). The 1330 Korea Travel Helpline can interpret over the phone if you need help communicating with a doctor.
Can I get a refund on NHIS premiums when I leave South Korea?
No. Premiums for the months you were insured are not refunded. Unlike the National Pension (국민연금), which can pay a lump-sum refund to some departing foreigners, NHIS has no departure refund. Your NHIS enrollment ends when you leave Korea for good or your stay ends — pay any outstanding premiums before you go.
Planning to study in South Korea? Use our insurance comparison tool to find supplementary plans that fill NHIS gaps — dental, vision, upgraded rooms, and repatriation coverage. Compare options and get covered before your semester starts.
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