To enable hospital staff, an inpatient and a visitor to save an effort, and allow a person desired by the inpatient to see to visit on a proper date and time.

A visitable date and time determination section 21 inquires and acquires an inpatient's examination schedule from an electronic medical record server 3 when an optional inpatient specifies/selects etc. an optional person permitted to visit and a desired date of visiting, and determines a date and time when the person permitted to visit can visit the inpatient on the basis of the examination schedule etc. A visiting permission code generation section 22 generates a visiting permission code, and causes a report section 24 to report the visitable date and time, the visiting permission code, etc. to the person permitted to visit by e-mail. A visiting permission determination section 25 does not permit visiting unless the visitor inputs at least the visiting permission code.