People who believe that they have itai-itai disease have to contact the Japanese Ministry of Health, Labor, and Welfare to have their claims assessed.
Inimesed, kes arvavad, et neil on itai-itai haigus, on kohustatud sellest teatama Jaapani Tervishoiu-, Töö- ja Heaoluministeeriumile, et nende arvamus üle vaadataks.