Health insurance and medical care in Japan: what SSW workers need to know

Most SSW workers are enrolled in Shakai Hoken (社会保険), the employment-based social insurance managed by the Japan Pension Service. Your employer handles enrollment when you start work. Your monthly health insurance contribution (around 5% of your gross wage) is deducted from your salary — you should see it listed on your payslip as 健康保険 (kenkō hoken). Your employer contributes a matching amount on top of that.

A smaller number of employers — typically smaller businesses in agriculture or food processing — may have you enrolled in Kokumin Kenkō Hoken (国民健康保険, National Health Insurance), which is administered by your local city or town hall. The coverage is similar, but billing and administration work differently. If you are unsure which system you are in, check your payslip or ask your employer's HR contact.

If your employer has not enrolled you in any health insurance within the first month of work, this is a legal violation. Enrollment is not optional. You can check your enrollment status by looking for your health insurance card (保険証, hoken-sho) — your employer or sending organization should provide this to you. If you have been working for more than 30 days and do not have a health insurance card, raise this with your employer or, if needed, contact the nearest Labor Standards Inspection Office.

Your health insurance card (保険証) is a small plastic or paper card issued in your name. It shows your insurance number, your employer or insurer name, and your coverage dates. Keep it with you or in a safe accessible place — you need to show it at every clinic and hospital visit.

With your insurance card, you pay 30% of the cost of most medical services at the point of care (窓口負担, madoguchi futan). The insurance system covers the other 70%. This applies to doctor consultations, most diagnostic tests, medications prescribed by a doctor, and many dental procedures. There are some exceptions — cosmetic procedures, most routine dental cleaning, and some prescription items are not covered or are only partially covered.

Important: you pay your 30% share upfront at the clinic or hospital on the day of your visit. You do not get reimbursed by insurance afterward — the clinic bills your insurer directly for the 70% remainder. This means even insured visits cost money. A standard GP consultation typically costs ¥2,000–¥4,000 out of pocket. A specialist visit or test may cost more. If you are admitted to hospital, costs rise significantly — but the high-cost medical expense benefit (高額療養費制度, kōgaku ryōyō-hi seido) caps your monthly out-of-pocket at around ¥80,000 for most income brackets, with the insurance covering costs above that threshold.

Japan's healthcare system separates general practitioners (内科, naika — internal medicine clinics) from specialist hospitals. For most common illnesses — fever, stomach problems, injury, cough — you visit a local naika clinic first. These are smaller than hospitals, quicker, and less expensive. Bring your health insurance card and residence card.

Finding a clinic near you: search '内科 [your town name]' on Google Maps or ask your employer's support contact. Clinics usually post their hours and whether you need an appointment. Some require you to register as a new patient (初診, shoshin) before seeing you — this is normal and just means filling out a form.

Language barrier: most local clinics operate in Japanese only. Practical steps that help: write down your symptoms in advance (or use a translation app), bring a Japanese-speaking colleague or employer contact if possible, and search for '外国人対応' (gaikokujin taiō — foreign patient support) or 'English OK' clinics in larger cities. The Japan Hospital Finder maintained by JMIP lists hospitals with multilingual support.

After the consultation, you receive a receipt (領収書) showing the total cost and your share paid. You may also receive a prescription (処方箋) to take to a nearby pharmacy (薬局, yakkyoku) — show the same insurance card at the pharmacy. Dispensing fees add a small amount to your prescription cost.

For a life-threatening emergency — serious accident, loss of consciousness, chest pain, difficulty breathing — call 119 immediately. This is Japan's ambulance and fire emergency number. Operators are Japanese-speaking but will send an ambulance regardless of whether you can communicate. Tell your location, say '救急車' (kyūkyūsha — ambulance), and stay on the line.

For the Tokyo and some major city areas, there are multilingual emergency support lines — check if your prefecture has a foreign resident consultation center (外国人相談センター) that can interpret during emergency calls.

You are not required to pre-authorize emergency treatment with your insurer. Present your insurance card when you arrive at the emergency department if you have it, or bring it later if you were brought in by ambulance. Hospitals are legally required to provide emergency care regardless of insurance status, though you will be billed.

Non-emergency but urgent situations — injuries that are not life-threatening, high fever, sudden severe illness — go to a hospital's emergency outpatient department (救急外来, kyūkyū garai) or an urgent care clinic. These visits cost more than scheduled clinic visits but less than full emergency care.

Workplace injury: if you are injured at work, this is covered separately by Workers' Accident Compensation Insurance (労災保険, rōsai hoken), not your regular health insurance. You should not pay the 30% copay for a work-related injury. Tell the clinic that the injury is 仕事中の怪我 (shigoto-chū no kega — injured at work) so they process it under rōsai. Your employer is responsible for filing the rōsai claim. If your employer delays or discourages you from filing a rōsai claim, this is a labor violation — you can report it directly to the Labor Standards Inspection Office.

Mental health: Japan has outpatient mental health clinics (心療内科, shinryō naika, or 精神科, seishinika). These accept your health insurance card and are increasingly common. Seeking care for stress, anxiety, or depression is normal and appropriate. If you are experiencing severe stress from your work environment, housing conditions, or homesickness, accessing this care is a right, not a weakness.

Dental care: basic dental treatment (fillings, extractions, treatment for dental pain) is covered by health insurance at 30% copay. Routine cleaning for healthy teeth and cosmetic work is generally not covered. Dental clinics (歯科, shika) are separate from general clinics.

Prescription continuity: if you take regular medication for a chronic condition, bring a sufficient supply from Vietnam for the transition period, and bring written documentation of your diagnosis and medication name (generic name, not just brand name). Japanese pharmacies stock many common medications but not all. Your employer or a medical interpreter can help you identify the Japanese equivalent.

No health insurance card after 30 days of work: your employer is required to enroll you. Follow up immediately — you are being denied a legal benefit.

Employer discouraging clinic visits: some employers pressure workers to 'push through' minor illness or injury. This is not acceptable and can worsen conditions. You have the right to seek medical care.

Employer filing a rōsai claim as a regular health insurance visit: this shifts the 30% cost to you and covers up the workplace injury. If you were hurt at work, insist on rōsai processing.

Being charged full cost without insurance: if a clinic charges you 100% rather than 30%, check that the staff received your insurance card and processed it. If there is a billing error, the clinic can issue a correction.

Health insurance deducted from payslip but no card issued: this may indicate administrative delay or fraud. Follow up with your employer and, if unresolved within 60 days, contact the Japan Pension Service (日本年金機構) or your city hall.