What to do if you get sick before you are insured

Last updated: 2026-03-09

Getting sick in Japan before you are insured is stressful, but the first rule is simple: do not delay necessary medical care just because insurance is not sorted out yet. Japan’s official travel guidance says treatment can be expensive, but it also makes clear that medical care and insurance are separate issues, and that some clinics may require upfront payment. It also warns that foreign visitors with unpaid medical expenses in Japan may face restrictions or refusal of entry in the future.

Quick answer

If you are sick before you are insured, do this in order:

Decide whether this is an emergency.
Get medical help first if it is urgent.
If it is not urgent, find a clinic and call ahead.
Do not assume after-arrival insurance will cover symptoms that have already started.
Keep every receipt and itemized statement.
These steps match Japan’s official guidance on emergency contacts, finding medical institutions, and understanding how travel insurance pays in Japan.

If it is an emergency, call 119

If you have severe trouble breathing, severe chest pain, heavy bleeding, loss of consciousness, signs of stroke, or another medical emergency, call 119 for an ambulance right away. JNTO’s hotline page lists 119 as the urgent fire/ambulance number, and JNTO’s emergency guidance points travelers to the official medical guide for urgent illness or injury.

If it is not an ambulance emergency

If you are stable but need medical care soon, use Japan’s official Guide for when you are feeling ill to search for a clinic or hospital by area, language, and department. The guide says you should check details directly with the medical institution, call before visiting when possible, and understand that treatment may not always be available at every facility.

You can also use the JNTO hotline

JNTO operates the Japan Visitor Hotline 24 hours a day, 365 days a year, in English, Chinese, and Korean for accidents, illness, and emergencies. This is useful if you are overwhelmed, cannot work out where to go, or need help understanding the next step.

Do not assume you can buy insurance for today’s problem

Japan’s official travel guidance says it is possible to buy insurance after arriving in Japan, but that does not mean a new policy will automatically cover symptoms that have already started. TOKIO OMOTENASHI’s FAQ says it basically covers unpredictable and sudden illness or injury and lists already in poor health and pre-existing medical conditions among situations that are not covered. World Nomads also says that if you buy while already traveling, a waiting period can apply, and illness or injury during that waiting period may be treated as pre-existing for the rest of the policy period.

After-arrival insurance may still help later, just not necessarily now

Buying after arrival can still be useful for the rest of your trip, but timing matters. JNTO says after-arrival insurance exists. TOKIO OMOTENASHI’s application guidance says that if you are already in Japan, coverage starts from 00:00 the next day rather than instantly. World Nomads says travelers who buy while already abroad may face a 72-hour waiting period before cover begins, depending on the product and market.

Be ready to pay first

Japan’s official travel insurance page says some insurers provide cashless service, but others require you to pay upfront, and some clinics do not accept credit cards. So if you are sick before you are insured, you should be prepared for the very real possibility that you will need to pay on the day.

Ask about cost and payment method before you go if you can

If your condition is stable enough, call the clinic and ask:

“Do you accept new foreign patients today?”
“Do you accept credit cards?”
“About how much is the consultation?”

Japan’s official medical guide says travelers should contact the medical institution in advance when possible and confirm details directly with the facility.

Keep every document

Even if you are uninsured today, keep all paperwork. At minimum, ask for:

a receipt
an itemized statement
any short medical note the clinic is willing to issue

This matters because you may later need the documents for reimbursement, for a new insurer’s claim rules on later covered events, for your employer or university, or simply for your own records. Japan’s official travel insurance guidance repeatedly emphasizes that travelers need to know how their insurer pays and what documentation they may need.

Check whether your credit card already includes insurance

Japan’s official travel insurance page also notes that some credit card companies offer travel insurance coverage. That does not mean you are automatically covered, but it is worth checking your card issuer immediately if you are unsure. A surprising number of travelers only remember this after something goes wrong.

If you are staying at a hotel

Ask the front desk to help you call a clinic or hospital. Even when staff are not acting as medical interpreters, they can often help with the basics: confirming whether the clinic is open, whether it can see foreign visitors, and how to get there. If you are struggling to communicate, the JNTO hotline is another good backup.

If you are worried about the bill

Do not ignore the problem and hope it goes away just because you are uninsured. JNTO’s official guidance notes that treatment in Japan can be expensive and that unpaid medical expenses can create immigration problems for future visits. If you need care, the safer path is to get treated, ask clearly about payment, keep documents, and sort out any later insurance or reimbursement questions after that.

A practical rule

A clean way to think about it is this:

Emergency: call 119
Urgent but stable: find a clinic and go
Insurance can wait a little; breathing cannot

Japan’s official systems are set up to help visitors find care even before insurance questions are fully resolved.

FAQ

Can I go to a clinic in Japan if I do not have travel insurance?

Yes. You can still seek medical care. But you may need to pay upfront, and some clinics may not accept credit cards.

Can I buy insurance after I get sick in Japan?

You may still be able to buy insurance after arrival, but you should not assume it will cover symptoms that have already started. TOKIO OMOTENASHI excludes already being sick or pre-existing conditions, and World Nomads says illness or injury during the waiting period may be treated as pre-existing.

Does TOKIO OMOTENASHI start immediately?

No. Tokio Marine’s public guidance says that if you are already in Japan, coverage starts from 00:00 the next day rather than instantly.

What number should I call in an emergency in Japan?

Call 119 for an ambulance and 110 for police. JNTO’s hotline page lists both numbers clearly.

Where can I search for an English-speaking clinic?

Use Japan’s official Guide for when you are feeling ill, which lets you search by location, language, and department.