I need a new coronavirus "negative certificate" for overseas travel, what should I do?

Inspections for insurance coverage conducted as an administrative inspection, we do not conduct tests to confirm and prove negative. In addition, health centers do not issue documents to confirm or prove negative. Please consult with the relevant embassy.
In addition, regardless of the doctor's diagnosis, there are medical institutions that carry out PCR tests, etc. in free medical treatment for those who are going to be tested at their own request.
Medical institutions that conduct tests at their own expense are published on the Ministry of Health, Labour and Welfare website, so please refer to them.

<Reference> List of inspection organizations that provide self-financing inspections (outside site) (Ministry of Health, Labour and Welfare website)