Loss and cancellation of insurance cards or documents
As of December 2, 2024, the Society no longer issues or reissues health insurance cards.
Use your My Number Card as your Health Insurance Certificate.
- If you lose your health insurance card within its validity period (before December 1, 2025)
- If you lose the health insurance eligibility certificate
- If you lose the notice of eligibility information
- To request issuance of a Health Insurance Eligibility Certificate at any time
- To cancel your My Number Card as your Health Insurance Certificate
If you lose your health insurance card within its validity period (before December 1, 2025)
If you have a My Number Card as your Health Insurance Certificate, keep using your card. If you do not have the card, submit the Notification of Health Insurance Card Loss. The Health Insurance Society will confirm your card registration status and issue a Health Insurance Eligibility Certificate (valid for one year).
If you lose your health insurance card and My Number Card as your Health Insurance Certificate (Individual Number Card) at the same time and we then confirm that you do not have your card during our monthly registration status check, we will issue a new health insurance eligibility certificate to you. Only submit an “Application Form for Health Insurance Eligibility Certificate” if you immediately need to have a Health Insurance Eligibility Certificate (valid for three months) issued to undergo an examination or treatment.
■If you are changing your name or leaving your employer by December 1, 2025, and lost your health insurance card. You must submit the Notification of Health Insurance Card Loss when changing your name or leaving your employer.
| Required documents: | |
|---|---|
| Deadline: | Immediately following loss of health insurance card |
| Applies to: | Insured persons or dependents who have lost their health insurance cards |
| Submit to: | Your employer’s section in charge of social insurance operations (or the Health Insurance Society’s section in charge of voluntarily and continuously insured persons if a voluntarily and continuously insured person) |
| Notes: | *No issuance fee will be charged if the health insurance eligibility certificate is being issued for the first time due to the loss of your health insurance card. |
If you lose the health insurance eligibility certificate
Please complete the following procedures if you lose the health insurance eligibility certificate within its validity period and would like the health insurance eligibility certificate to be reissued.
The reissued certificate will be the same as the previous one, with no extension of validity. If you have lost your health insurance eligibility certificate but do not need it because you are switching to a My Number Card as your Health Insurance Certificate, or if you would like to wait until the next automatic issuance (the first day of the month of the validity period), you do not need to submit this application form.
- Remit the reissue fee to the designated bank account in the name of the insured person (not required if exempt from the reissue fee due to theft or disaster).
- * Refer to the Application Form for Reissue of Health Insurance Card and contact the Health Insurance Society for the designated bank account.
- * Once paid, reissue fees will not be refunded for any reason.
- Fill out the necessary information on the Application for Reissue of Health Insurance Card. Attach a copy of the funds transfer stub and submit it to your employer’s section in charge.
- After the employer submits the form to the Health Insurance Society, the Society will reissue the card and send it to the employer.
- Your employer submits the form to the Health Insurance Society, and the Society reissues the card and sends it to your employer.
- Your employer sends the card to you.
| Required documents: |
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|---|---|
| Deadline: | Immediately following loss of health insurance card |
| Applies to: | Insured persons and dependents who wish to have a Health Insurance Eligibility Certificate issued (reissued) |
| Inquiries: | Operations Group, Health Insurance Society To check the account number: tel. 0120-501-042 (Choose voice guidance option 4.) Inquiries on matters other than the account number: tel. 0120-501-042 (Choose voice guidance option 5.) |
| Submit to: | Your employer’s section in charge of social insurance operations (or the Health Insurance Society’s section in charge of voluntarily and continuously insured persons if a voluntarily and continuously insured person) |
| Notes: | *You are exempt from paying the reissue fee if you file a police report at a police station after the theft and enter the necessary information, including the name of the police station, on the application form, or if you were affected by a disaster. |
If you lose the notice of eligibility information
The notice of eligibility information is sent to notify you of the member information registered with the Health Insurance Society, so that you can readily verify your own eligibility as an insured person.
You can check the information on this notice on Mynaportal and on the health insurance eligibility certificate.
If you are unable to check the above and would like the notice of eligibility information to be reissued, please contact the Health Insurance Society.
| Inquiries: | Operations Group, Health Insurance Society To check the account number: tel. 0120-501-042 (Choose voice guidance option 4.) Inquiries on matters other than the account number: tel. 0120-501-042 (Choose voice guidance option 5.) |
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To request issuance of a Health Insurance Eligibility Certificate at any time
If you are a new member who does not have a My Number Card as your Health Insurance Certificate, a Health Insurance Eligibility Certificate will be automatically issued by the office within about one week of receiving the eligibility notification, so this application is basically unnecessary. Please wait for the certificate to be automatically issued.
In addition, since the health insurance eligibility certificate is issued in place of a health insurance card, if you have a My Number Card as your Health Insurance Certificate, you will not be issued a Health Insurance Eligibility Certificate in principle. Please use the My Number Card as your Health Insurance Certificate.
As an exception, for those requiring special accommodations, etc. (persons who wish to have both a My Number Card as your Health Insurance Certificate and a Health Insurance Eligibility Certificate for the reason indicated on their application form), a Health Insurance Eligibility Certificate valid for one year will be issued upon submission and confirmation of an Application Form for Health Insurance Eligibility Certificate. If you require this certificate, please read the application form carefully, as it will only be accepted for specific reasons. In the case of those requiring special accommodations, etc., it is necessary to apply once per year. If you still require special accommodations, etc. next year as well, please apply again by the middle of the final month of validity indicated on your issued health insurance eligibility certificate.
For those who currently have a health insurance card but do not have a My Number Card as your Health Insurance Certificate, a Health Insurance Eligibility Certificate will be automatically issued around November 2025.
| Required documents: | |
|---|---|
| Deadline: | Immediately following loss of health insurance card |
| Applies to: | Insured persons or dependents who have lost their health insurance cards |
| Submit to: | Your employer’s section in charge of social insurance operations (or the Health Insurance Society’s section in charge of voluntarily and continuously insured persons if a voluntarily and continuously insured person) |
| Notes: | *Depending on the reason for application, the Society may be unable to accept your application for issuance. |
To cancel your My Number Card as your Health Insurance Certificate
If you have been registered for a My Number Card as your Health Insurance Certificate and would like to remove the link between your individual number card and health insurance card, please read the contents of the application form for cancellation of My Number Card as your Health Insurance Certificate before applying.
| Required documents: | * If you have a valid "Health Insurance Eligibility Certificate(A4)," please attach it and submit it. (The certificate is valid for one year, and a postcard-type certificate of qualification will be newly issued.) |
|---|---|
| Deadline: | Immediately following loss of health insurance card |
| Applies to: | Person who wants to cancel My Number Card as his or her Health Insurance Certificate |
| Submit to: | Your employer’s section in charge of social insurance operations (or the health insurance society’s section in charge of voluntarily and continuously insured persons if a voluntarily and continuously insured person) |