Out-of-pocket medical costs free through high school age, no income limit
Medical Expense Subsidy for Children (Maru-Nyu, Maru-Ko, Maru-Sei) / Nerima City
Medical Expense Subsidy for Children (Maru-Nyu, Maru-Ko, Maru-Sei)Nerima CityAge 0 to end of fiscal year at 18No income limit
Out-of-pocket medical costs fully covered through high school age
Out-of-pocket share of insured careFully coveredThe standard share of hospital meal costs is also covered
For children living in the city who have health insurance, the city covers the out-of-pocket share of medical costs covered by insurance. The standard share of hospital meal costs is also covered. Eligible children are from age 0 through high school age, specifically until the first March 31 after turning 18. Preschool children get the Maru-Nyu certificate, grade 1 of elementary school to grade 3 of junior high get the Maru-Ko certificate, and high school age get the Maru-Sei certificate. There is no limit based on parents' income.
Nationality and residence status
The official page (checked in October 2026) sets no condition on nationality or residence status that we found. Eligibility follows the official conditions, not the language of this page; many programs require resident registration in the municipality.
Who is eligible
Children living in the city with health insurance, from age 0 through high school age
Notes
For the procedure to get the medical certificate, see https://www.city.nerima.tokyo.jp/kosodatekyoiku/kodomo/teateiryo/jido/iryosho.html