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Procedures for National Health Insurance by Mail

The following procedures for National Health Insurance can be notified and applied by mail. Please note that we may contact you or return if there are any deficiencies.

Last Updated November 20, 2024

Qualifications

registration form Application Form (Certificate of Enrollment, Reissue, Limit Application)

When applying for National Health Insurance due to withdrawal from social insurance (employee health insurance) by mail, first check the notes and the documents to be mailed in the “Notes on Procedures (PDF: 515KB)”. (Notes for joining after December 1 (PDF: 498KB))
National Health Insurance transfer registration form (joining) (PDF: 203KB) / [Example] (PDF: 250KB)
 ※If you join after December 1, National Health Insurance transfer registration form (join) (PDF: 345KB) / [Example] (PDF: 405KB)
Re-grant application (PDF: 141KB) [Example] (PDF: 212KB)
Limit application, standard burden reduction authorization application (and consent form) (PDF: 67KB) [Example] (PDF: 202KB)
Power of Attorney Model (PDF: 121KB) [Example] (PDF: 172KB)
※As for the limit application certificate, etc., the paper limit application certificate is not required because it can be confirmed by online qualification confirmation.
 Specifically, please confirm "about National Health Insurance limit application authorization".

What to be sent (subscription, re-grant, limit application certificate)

(1) Various application forms, registration form
(2) A copy of the applicant's identity verification document
Driver's license, passport, residence card, my number card (only the face with photos), etc.
(3) (In the case of National Health Insurance enrollment procedure) employee health insurance certificate of disqualification

Loss of National Health Insurance due to social insurance (employee health insurance)

Minor insurance card related (cancellation of registration of minor insurance card use)

Notes

When applying for cancellation of registration of the minor insurance card by mail, first check the following notes.

・After applying for the cancellation of the registration of the minor insurance card, it will take one to two months for the cancellation information to be reflected on the minor portal etc.

・Even after the use registration has been canceled, it is possible to perform the use registration procedure again. In addition to minor portals and Seven Bank ATMs, it can be done from card readers with face recognition installed at the reception of medical institutions and pharmacies.

・If you register again after applying for registration cancellation, you will not be able to register for use until the cancellation of use registration is reflected.

・If you have a valid health insurance card until July 31, 2025, please use it until the expiration date. In addition, we will send you a qualification confirmation around July 2025, when the insurance card expires.

・If you newly join another medical insurer before the cancellation is completed after the application for cancellation of use registration cancellation, the newly enrolled medical insurers, etc. Please offer that you have applied for cancellation of use registration with National Health Insurance.

What to send

If you wish to cancel the registration of your minor insurance card by mail, please send the following required documents to the ward office Insurance and Pension Division.
(1) Application for cancellation of registration of use of health insurance card of my number card (PDF: 122KB) [Example] (PDF: 198KB)
(2) Copy of identity verification documents (If someone other than the person applies on behalf of the person, both the delegate and proxy/agent are required.)
Certificate with face photo such as driver's license, passport, residence card, my number card (only the face with photo)
(3) Power of Attorney (when a person other than the person who wishes to cancel the use registration applies) Hinagata (PDF: 121KB) [Example] (PDF: 229KB)

Benefits

registration form Application Form

(1) About medical expenses
Please refer to "Payment of medical expenses" for the medical expenses system.
National Health Insurance medical expenses / special medical expenses payment application (PDF: 136KB) [Example] (PDF: 153KB)
medical expenses Receipt Statement (PDF: 93KB)
Dispensing Fee Receipt Statement (PDF: 43KB)
Dental medical expenses receipt statement (PDF: 107KB)
Letter of consent related to the survey (overseas medical expenses) (English version) (PDF: 137KB) [Example] (PDF: 177KB)
Letter of consent related to the survey (overseas medical expenses) (Chinese version) (PDF: 195KB) [Example] (PDF: 235KB)
Letter of consent related to the survey (overseas medical expenses) (Korean version) (PDF: 220KB) [Example] (PDF: 260KB)
Letter of consent related to the survey (overseas medical expenses) (Thai language version) (PDF: 256KB) [Example] (PDF: 330KB)
Medical treatment statement (Form A) (overseas medical expenses), international disease classification table, receipt statement (Form B) (overseas medical expenses) (PDF: 448KB)
Medical treatment statement (Form A), receipt statement (Form B) (Dentistry) (PDF: 1,427KB)

(2) About dietary allowance at the time of hospitalization
For information on the system of dietary allowances at the time of hospitalization, please refer to "Dietary treatment at the time of hospitalization and living treatment at the time of hospitalization."
・National Health Insurance standard burden (difference) payment application (PDF: 119KB) [Example] (PDF: 116KB)

(3) About high medical costs
Please refer to the “High Reimbursement Fee System” for details on the high medical costs system.
In general, we will send you an application form and application form at the end of the month following the month in which high medical costs was paid.
Please return it in the enclosed reply envelope.

(4) About lump-sum payment for childbirth and childcare
Please refer to "Payment of lump-sum childcare lump sum" for the lump-sum childcare lump sum system.
National Health Insurance Childbirth and Childcare Lump-sum Payment Application Form (PDF: 116KB) [Example] (PDF: 149KB)

(5) About funeral expenses
Please refer to "Payment of funeral expenses" for the system of funeral expenses.
National Health Insurance funeral expenses payment application (PDF: 116KB) [Example] (PDF: 133KB)
Funeral expenses payment application petition (PDF: 112KB) [Example] (PDF: 145KB)

(6) Child care allowance for children with disabilities
Please refer to "Payment of Child Care Allowance for Children with Disabilities" for the system of Child Care Allowance for Children with Disabilities.
National Health Insurance child with a disability childcare allowance payment application (PDF: 126KB) [Example] (PDF: 155KB)
Medical certificate (for child care allowance for children with disabilities) (PDF: 122KB)

(7) Transfer costs
Please refer to "Payment of transfer costs" for the transfer costs system.
National Health Insurance transfer payment application (PDF: 114KB) [Example] (PDF: 116KB)
Statement of opinion requiring transfer (PDF: 117KB)

(8) About injury and sickness allowance (COVID-19 infection related)
Please refer to "Payment of Injury and Disease Allowance (COVID-19 Infectious Diseases Related)" for the system of injury and illness allowance (COVID-19 infection related).
The application form is available at the ward office Insurance and Pension Division National Health Insurance Section. Please contact the ward office Insurance and Pension Division for details of the procedure.

(9) Notification of Third-Party Acts
Please refer to "When you have a traffic accident" for the actions of third parties.
Notification of injury and illness caused by the act of a third party (PDF: 119KB) [Example] (PDF: 135KB)
Petition for Facts (PDF: 246KB) [Example] (PDF: 248KB)
Accident Occurrence Status Report (PDF: 124KB) [Example] (PDF: 282KB)
Notebook (PDF: 211KB) [Example] (PDF: 229KB)
Reason for inability to obtain a certificate of personal injury (PDF: 151KB) [Example] (PDF: 149KB)

(10) About notification about self-negligence and work injury and illness
Notification of self-negligence and work injury and illness (PDF: 83KB) [Example] (PDF: 111KB)

(11) Common style
Petition about application and receipt about Yokohama-shi National Health Insurance payment costs (PDF: 83KB) [example] (PDF: 105KB)

What to send

(1) Various application forms, registration form
(2) required documents (depending on each system) Please check the page of each system.
(3) Copy of identity verification document of the head of household
Driver's license, passport, residence card, my number card (only the one with the photo), insurance card, etc.

Reduction and exemption of insurance premiums

registration form Application Form

If you wish to apply for a reduction or exemption application by mail, please contact Insurance and Pension Division in your ward before mailing.

National Health Insurance premium collection postponement, reduction of taxes application (PDF: 225KB)
National Health Insurance Premium Late Payment Exemption Application (PDF: 114KB)
Others
Please refer to "Measures to reduce the burden due to employment fluctuations (involuntary unemployment)" for mitigation measures for those who have left their jobs involuntary.
Insured persons eligible for the National Health Insurance exception registration form (PDF: 114KB)
Please refer to the "National Health Insurance Premium Payment Certificate" for the National Health Insurance Premium Payment Certificate.
National Health Insurance premium payment proof application (PDF: 168KB)

What to send

(1) Copy of various application forms and supporting materials
(2) A copy of the applicant's identity verification document
Driver's license, passport, residence card, my number card (only the one with the photo), insurance card, etc.

How to apply

Please send a copy of each required documents and your identity verification document to your ward office Insurance and Pension Division.

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Inquiries to this page

◆If you have any questions about the procedure, please contact your ward office Insurance and Pension Division.

Tsurumi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-510-1810

Telephone: 045-510-1810

Fax: 045-510-1898

Email address: tr-hokennenkin@city.yokohama.jp

Kanagawa Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-411-7126

Telephone: 045-411-7126

Fax: 045-322-1979

Email address: kg-hokennenkin@city.yokohama.jp

Nishi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-320-8427、045-320-8428

Telephone: 045-320-8427、045-320-8428

Fax: 045-322-2183

Email address: ni-hokennenkin@city.yokohama.jp

Naka Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-224-8317、045-224-8318

Telephone: 045-224-8317、045-224-8318

Fax: 045-224-8309

Email address: na-hknkquestion@city.yokohama.jp

Minami Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-341-1128

Telephone: 045-341-1128

Fax: 045-341-1131

Email address: mn-hokennenkin@city.yokohama.jp

Konan Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-847-8423

Telephone: 045-847-8423

Fax: 045-845-8413

Email address: kn-hokennenkin@city.yokohama.jp

Hodogaya Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-334-6338

Telephone: 045-334-6338

Fax: 045-334-6334

Email address: ho-hokennenkin@city.yokohama.jp

Asahi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-954-6138

Telephone: 045-954-6138

Fax: 045-954-5784

Email address: as-hokennenkin@city.yokohama.jp

Isogo Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-750-2428

Telephone: 045-750-2428

Fax: 045-750-2545

Email address: is-hokennenkin@city.yokohama.jp

Kanazawa Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-788-7838、045-788-7839

Telephone: 045-788-7838、045-788-7839

Fax: 045-788-0328

Email address: kz-hokennenkin@city.yokohama.jp

Kohoku Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-540-2351

Telephone: 045-540-2351

Fax: 045-540-2355

Email address: ko-hokennenkin@city.yokohama.jp

Midori Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-930-2344

Telephone: 045-930-2344

Fax: 045-930-2347

Email address: md-hokennenkin@city.yokohama.jp

Aoba Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-978-2337

Telephone: 045-978-2337

Fax: 045-978-2417

Email address: ao-hokennenkin@city.yokohama.jp

Tsuzuki Ward   Insurance and Pension Division National Health Insurance Section

Telephone: 045-948-2336、045-948-2337

Telephone: 045-948-2336、045-948-2337

Fax: 045-948-2339

Email address: tz-hokennenkin@city.yokohama.jp

Totsuka Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-866-8450

Telephone: 045-866-8450

Fax: 045-871-5809

Email address: to-hokennenkin@city.yokohama.jp

Sakae Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-894-8426

Telephone: 045-894-8426

Fax: 045-895-0115

Email address: sa-hokennenkin@city.yokohama.jp

Izumi Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-800-2425、045-800-2426、045-800-2427

Telephone: 045-800-2425、045-800-2426、045-800-2427

Fax: 045-800-2512

Email address: iz-hokennenkin@city.yokohama.jp

Seya Ward Insurance and Pension Division National Health Insurance Section

Telephone: 045-367-5727、045-367-5728

Telephone: 045-367-5727、045-367-5728

Fax: 045-362-2420

Email address: se-hokennenkin@city.yokohama.jp

Insurance and Pension Division, Health and Social Welfare Bureau Life and Welfare Department

Telephone: 045-671-2421

Telephone: 045-671-2421

Fax: 045-664-0403 (For inquiries regarding procedures, please contact the ward office above)

Email address: kf-hokennenkin@city.yokohama.jp

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Page ID: 199-419-275

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