From age 0 to the end of the fiscal year at 18, no out-of-pocket cost for insured medical care (no income limit)
Medical Expense Subsidy for Children (Maru-Nyu / Maru-Ko / Maru-Sei) / Musashimurayama City
Medical Expense Subsidy for Children (Maru-Nyu / Maru-Ko / Maru-Sei)Musashimurayama CityAge 0 to 18No income limit
Until the end of the fiscal year the child turns 18, no out-of-pocket medical costs
Out-of-pocket share of insured care¥0No ¥200 per outpatient visit either
- Meal costs during a hospital stay are subsidized only before elementary school
- Checkups, vaccinations, and private room charges are excluded
From October 1, 2024, the income limit and the ¥200 per outpatient visit were removed from the medical expense subsidy for children from age 0 to the end of the fiscal year they turn 18. When you show the medical certificate (iryōshō), there is no charge for the insured portion of visits, pharmacy dispensing, and hospital stays. Meal costs during a hospital stay are subsidized only for children before elementary school. Items not covered by insurance, such as checkups, vaccinations, and private room charges, are excluded.
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
People in Musashimurayama City raising a child from age 0 until the last day of the fiscal year that includes the day the child turns 18, enrolled in medical insurance (excluding public assistance, residence in an institution, foster placement, and similar)
Notes
PMH integration started on April 6, 2026; at PMH-compatible medical institutions in Tokyo, you do not need to show the medical certificate if you use your My Number health insurance card.For care outside Tokyo, bring the receipts and similar to the Child Development Division to claim a refund.