Health, Labour and Welfare Ministry Council Considers Adding “Sleep Disorder” to Medical Department Names, Along with Internal Medicine
Japan’s Health, Labor and Welfare Ministry is considering allowing “sleep disorders” to be listed as an official medical department name at hospitals and clinics. The move comes after the Japanese Society of Sleep Research requested the change, citing a rise in conditions such as insomnia and hypersomnia and confusion over where patients should seek treatment. Currently, care is divided among psychiatry, respiratory medicine, and otolaryngology. The ministry’s advisory council aims to reach a decision by March 2026.







