# 国民健康保険法 / National Health Insurance Act — 第五十七条の二 (Article 57-2) - Law: 国民健康保険法 (National Health Insurance Act), 昭和三十三年法律第百九十二号 - English title "National Health Insurance Act": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第五十七条の二 (Article 57-2)（高額療養費） — address `art-57-2` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/en/national-health-insurance-act/art-57-2 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/333AC0000000192/art-57-2 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第五十七条の二（高額療養費） — (High-Cost Medical Expenses) caption: Ministry of Justice translation — Japanese Law Translation Database System art-57-2 · https://japanlaw.org/en/national-health-insurance-act/art-57-2 · https://japanlaw.org/l/333AC0000000192/art-57-2 **第一項** 市町村及び組合は、療養の給付について支払われた一部負担金の額又は療養（食事療養及び生活療養を除く。次項において同じ。）に要した費用の額からその療養に要した費用につき保険外併用療養費、療養費、訪問看護療養費若しくは特別療養費として支給される額若しくは第五十六条第二項の規定により支給される差額に相当する額を控除した額（次条第一項において「一部負担金等の額」という。）が著しく高額であるときは、世帯主又は組合員に対し、高額療養費を支給する。ただし、当該療養について療養の給付、保険外併用療養費の支給、療養費の支給、訪問看護療養費の支給若しくは特別療養費の支給又は第五十六条第二項の規定による差額の支給を受けなかつたときは、この限りでない。 art-57-2/par-1 · https://japanlaw.org/en/national-health-insurance-act/art-57-2/par-1 · https://japanlaw.org/l/333AC0000000192/art-57-2/par-1 When the amount of co-payment paid for benefits for medical treatment, or the amount obtained by deducting, from the amount of expenses incurred in medical treatment (excluding Dietary Treatment and Living Support; hereinafter the same shall apply in the following paragraph), the amount paid as medical expenses combined with treatment outside insurance coverage, medical expenses, medical expenses for home-nursing or special medical expenses with respect to expenses incurred in the relevant medical treatment or the amount equivalent to the difference paid pursuant to the provisions of Article 56, paragraph (2) (in paragraph (1) of the following Article referred to as the "amount of co-payment, etc."), is extremely large, Municipalities and Societies shall pay high-cost medical expenses to the relevant Householder or Society member; provided, however, that this shall not apply if no benefit for medical treatment, medical expenses combined with treatment outside insurance coverage, medical expenses, medical expenses for home-nursing or special medical expenses were paid and no difference was paid pursuant to the provisions of Article 56, paragraph (2) with respect to the relevant medical treatment. machine translation, not official **第二項** 高額療養費の支給要件、支給額その他高額療養費の支給に関して必要な事項は、療養に必要な費用の負担の家計、とりわけ長期にわたつて継続的に療養を受ける者の家計に与える影響及び療養に要した費用の額を考慮して、政令で定める。 art-57-2/par-2 · https://japanlaw.org/en/national-health-insurance-act/art-57-2/par-2 · https://japanlaw.org/l/333AC0000000192/art-57-2/par-2 The requirements for payment and the amount of high-cost medical expenses and other necessary matters concerning the payment of high-cost medical expenses shall be prescribed by Cabinet Order by taking into consideration the impact of the burden of the expenses incurred in the relevant medical treatment on household finances, in particular the household finances of persons who continuously receive medical treatment over a long period, and the amount of expenses incurred in the medical treatment. machine translation, not official --- ## Cites - art-57-2/par-1: 次項 → 国民健康保険法 第五十七条の二第二項 (Article 57-2, paragraph (2)), art-57-2/par-2 — https://japanlaw.org/en/national-health-insurance-act/art-57-2/par-2 · https://japanlaw.org/l/333AC0000000192/art-57-2/par-2 - art-57-2/par-1: 第五十六条第二項 → 国民健康保険法 第五十六条第二項 (Article 56, paragraph (2)), art-56/par-2 — https://japanlaw.org/en/national-health-insurance-act/art-56/par-2 · https://japanlaw.org/l/333AC0000000192/art-56/par-2 - art-57-2/par-1: 次条第一項 → 国民健康保険法 第五十七条の三第一項 (Article 57-3, paragraph (1)), art-57-3/par-1 — https://japanlaw.org/en/national-health-insurance-act/art-57-3/par-1 · https://japanlaw.org/l/333AC0000000192/art-57-3/par-1 ## Cited by 4 provisions cite this one. No official source publishes this direction. - 国民健康保険法 第五十七条の二第一項（高額療養費） — https://japanlaw.org/en/national-health-insurance-act/art-57-2/par-1 · https://japanlaw.org/l/333AC0000000192/art-57-2/par-1 - 国民健康保険法 第五十七条の三第一項（高額介護合算療養費） — https://japanlaw.org/en/national-health-insurance-act/art-57-3/par-1 · https://japanlaw.org/l/333AC0000000192/art-57-3/par-1 - 国民健康保険法 第五十七条の三第二項（高額介護合算療養費） — https://japanlaw.org/en/national-health-insurance-act/art-57-3/par-2 · https://japanlaw.org/l/333AC0000000192/art-57-3/par-2 - 国民健康保険法 第六十六条の二第一項（市町村による保険給付に係る事務の範囲） — https://japanlaw.org/en/national-health-insurance-act/art-66-2/par-1 · https://japanlaw.org/l/333AC0000000192/art-66-2/par-1 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 国民健康保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/333AC0000000192/20261001_507AC0000000087), retrieved 2026-10-17 - Japanese Law Translation Database System, Ministry of Justice (法務省) — National Health Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/2453/tb), retrieved 2026-10-17 - claude-sonnet-5-5 — Machine translation, batch national-health-insurance-act-20261017T183826-003, translated 2026-10-18 - This site's parser, version 209 — 国民健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-17