KOSMO Web (system for browsing medical expenses, benefits and other information, and electronic application)

The Health Insurance Society offers a web-based service (KOSMO Web) that allows you to browse your medical expenses, benefits and other information, and to submit electronic applications for subsidies such as flu vaccinations.

The main features of this system are as follows:

<Browsing>

  • Browsing medical expense information:
    You can browse medical expense information on a monthly basis. Medical expenses can, in principle, be browsed starting three months after the month of your medical treatment. You can use medical expense information to cross-check against the actual medical expenses you incurred, as shown on your receipt or statement.
  • Browsing notification of payments:
    You can browse information on benefits and subsidies covered by the Health Insurance Society.
  • Browsing prescription drug information (generic drug price difference notice):
    You can browse information on prescribed medications, as well as available generic alternatives when the prescribed medication is a brand-name (new) drug.
  • Browsing information for medical expense deduction (e-Tax) and provision of electronic data:
    When filing your medical expense deduction using “e-Tax,” an electronic national tax filing system, you can utilize the electronic medical expense data downloaded from KOSMO Web.
  • Browsing notice of health insurance eligibility information:
    You can browse your health insurance eligibility information (such as your health insurance number). Please print it if needed.
    *After logging in, you will be redirected to MY HEALTH WEB (health insurance eligibility information site).

<Application>

  • Electronic application for the flu vaccination subsidy:
    You can apply for the flu vaccination subsidy. (Available for a limited period)
  • Electronic application for the dependent eligibility verification survey:
    You can apply for the dependent eligibility verification survey. (Available for limited period)
    *After logging in, you will be redirected to MY HEALTH WEB (dependent eligibility verification site).
  • * First-time users are required to complete initial registration (see 2. of the manual shown below).
    Please contact the Health Insurance Society if you have lost your temporary ID or password required for initial registration.
  • * You can also access this system from your home computer, tablet, smartphone, or other device.
  • * Available browsing hours: 6:00 a.m. to 12:00 a.m.
    However, on the 25th of each month, the system will be unavailable for browsing from 9:00 p.m. to 12:00 a.m. due to maintenance.
    (If the 25th falls on a Saturday, Sunday, or national holiday, the system will be unavailable on the preceding business day.)
  • * Data can be browsed and printed at any time until it becomes two years old.
    Please note that the Health Insurance Society cannot accommodate requests to print the notification content.

Log in here : https://kosmoweb.jp (for browsing medical expenses and other information)

KOSMO Web User Manual

* JAPANESE VERSION ONLY
1. Notes for browsing (84KB)
2. Initial registration (upon receiving the “Invitation for our web service” postcard) (980KB)
3. When browsing or printing medical expense information (780KB)
4. When browsing or printing notification of payments (683KB)
5. When issuing a temporary password (if you forget your password or it has expired) (367KB)
6. When changing your registered email address (617KB)
7. When changing your password (594KB)
8. When browsing information for medical expense deduction (e-Tax) (1,140KB)
9. When browsing prescription drugs (generic drugs) information (1,159KB)
10. When submitting an electronic application (for flu vaccination subsidy) (1,560KB)
11. When submitting an electronic application (for dependent eligibility verification survey) (1,149KB)
12. When browsing notice of health insurance eligibility information (771KB)