The hospital told me, "Please get a reduction certificate (or limit application certificate) for the medical system for elder senior citizens." . How do I apply for it?

The "Certificate of Limit Application" and "Certificate of Reduction" of the Medical System for Elderly Seniors ended on December 1.
In the future, if a medical institution is required to classify the limit, use a minor insurance card or present a “qualification confirmation” (*) that describes the category of the limit, You will be exempt from payment exceeding the limit.
※If you wish to receive a “certificate of qualification” with the classification of the limit, please submit an application to the ward office Insurance and Pension Division National Health Insurance Section.

・Application for the issuance of a medical certificate for the latter-stage elderly medical qualification and a description of optional items
・Identity verification documents (If someone other than the person or a relative of same household applies in proxy/agent, identification documents of the person entrusted to the person is required.)
　Documents with a face photo issued by a public office such as a driver's license, my number card, passport, etc.
・Power of Attorney (required if someone other than the person or a relative of same household applies in proxy/agent)　
・If an adult guardian has been appointed, a copy of the certificate of entry, etc.

Insurance and Pension Division National Health Insurance Section, ward office in your ward
Contact information

In addition, please bring one of the following documents.
・Documents certifying the number of hospital stays of 91 days or more (receipts, etc.)
・If you are 75 years old or have become a new insured due to moving in, a copy of the medical insurance reduction certificate that you have subscribed to.

Kanagawa Prefecture Senior Citizens' Medical Association Insurance Card (enrollment / return) (outside site)