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The weeks after hospital discharge are dense with paperwork — stacked on top of newborn care. Birth registration, child allowance, infant medical-fee subsidies, parental-leave benefits: each program has a different deadline, a different window, and no single official source that ties them all together.
"How many times do I have to go to the city office?" is a fair question. This article organizes the main administrative procedures triggered in Japan within the first 100 days after birth, in chronological order. Japanese residents are the primary audience; a note for Japanese nationals living abroad is included at the end.