# 高齢者の医療の確保に関する法律 / Act on Assurance of Medical Care for Elderly People — 第百条 (Article 100) - Law: 高齢者の医療の確保に関する法律 (Act on Assurance of Medical Care for Elderly People), 昭和五十七年法律第八十号 - English title "Act on Assurance of Medical Care for Elderly People": 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: 第百条 (Article 100)（後期高齢者交付金） — address `art-100` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/ja/elderly-medical-care-act/art-100 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/357AC0000000080/art-100 - 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. --- ### 第百条（後期高齢者交付金） — (Old-Old Subsidy) caption: Ministry of Justice translation — Japanese Law Translation Database System art-100 · https://japanlaw.org/ja/elderly-medical-care-act/art-100 · https://japanlaw.org/l/357AC0000000080/art-100 **第一項** 後期高齢者医療広域連合の後期高齢者医療に関する特別会計において負担する費用のうち、負担対象額に一から後期高齢者負担率及び百分の五十を控除して得た率を乗じて得た額並びに特定費用の額に一から後期高齢者負担率を控除して得た率を乗じて得た額の合計額（以下この節において「保険納付対象額」という。）に負担対象拠出金額に一から後期高齢者負担率及び百分の五十を控除して得た率を乗じて得た額並びに特定流行初期医療確保拠出金の額に一から後期高齢者負担率を控除して得た率を乗じて得た額の合計額を加えて得た額（第百二十一条第一項において「保険納付対象総額」という。）については、政令で定めるところにより、機構が後期高齢者医療広域連合に対して交付する後期高齢者交付金をもつて充てる。 art-100/par-1 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-1 · https://japanlaw.org/l/357AC0000000080/art-100/par-1 Among the expenses borne in the special account for old-old medical care of the Association of Medical Care Systems for the Elderly Aged 75 and older, the amount obtained by adding, to the sum total of the amount obtained by multiplying the Amount Subject to Sharing by the rate obtained by deducting the contribution rate for the old-old and 50 percent from one and the amount obtained by multiplying the amount of specified expenses by the rate obtained by deducting the contribution rate for the old-old from one (hereinafter referred to as the "amount subject to insurance payment" in this Section), the sum total of the amount obtained by multiplying the contribution Amount Subject to Sharing by the rate obtained by deducting the contribution rate for the old-old and 50 percent from one and the amount obtained by multiplying the amount of specified contribution for securing medical care in the early phase of an epidemic by the rate obtained by deducting the contribution rate for the old-old from one (referred to as the "total amount subject to insurance payment" in Article 121, paragraph (1)) is to be covered by the Old-Old Subsidy granted by the Organization to the Association of Medical Care Systems for the Elderly Aged 75 and older, pursuant to the provisions of Cabinet Order. machine translation, not official **第二項** 前項の後期高齢者負担率は、第一号に掲げる数に第二号に掲げる率を乗じて得た数を第三号に掲げる数で除して得た率を基礎として、二年ごとに政令で定める。 art-100/par-2 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2 · https://japanlaw.org/l/357AC0000000080/art-100/par-2 The contribution rate for the old-old set forth in the preceding paragraph is specified by Cabinet Order every two years based on the rate obtained by multiplying the number set forth in item (i) by the rate set forth in item (ii) and then dividing the product by the number set forth in item (iii): Ministry of Justice translation — Japanese Law Translation Database System **一** 二分の一に、当該年度における療養の給付等に要する費用の額に対する特定費用の額の割合の二分の一に相当する率を加えて得た数 art-100/par-2/item-1 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-1 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-1 the number obtained by adding, to one half, a rate equivalent to one half of the ratio of the amount of specified expenses to the amount of expenses required for benefits for medical treatment, etc. in the relevant fiscal year. Ministry of Justice translation — Japanese Law Translation Database System **二** 百分の十一・七二に、当該年度における全ての後期高齢者医療広域連合に係る被保険者の見込総数を令和四年度における全ての後期高齢者医療広域連合に係る被保険者の総数で除して得た率を乗じて得た率 art-100/par-2/item-2 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-2 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-2 The rate obtained by multiplying 11.72 percent by the rate obtained by dividing the prospective total number of insured pertaining to all Association of Medical Care Systems for the Elderly Aged 75 and older in the relevant fiscal year by the total number of insured pertaining to all Association of Medical Care Systems for the Elderly Aged 75 and older in fiscal year 2022. Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "The rate obtained by multiplying 11.72 percent by the rate obtained by dividing the prospective total number of insured pertaining to all Association of Medical Care Systems for the Elderly Aged 75 and older in the relevant fiscal year by the total number of insured pertaining to all Association of Medical Care Systems for the Elderly Aged 75 and older in fiscal year 2022. 200" — https://www.japaneselawtranslation.go.jp/en/laws/view/4903/tb **三** 前号に掲げる率に、イに掲げる率にロに掲げる率を乗じて得た率を加えて得た数 art-100/par-2/item-3 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-3 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-3 the number arrived at when the rate set forth in the preceding item is added to the rate arrived at when the rate set forth in (a) is multiplied by the rate set forth in (b): Ministry of Justice translation — Japanese Law Translation Database System **イ** 令和四年度における保険納付対象額を同年度における療養の給付等に要する費用の額で除して得た率 art-100/par-2/item-3/sub-1 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-3/sub-1 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-3/sub-1 the rate obtained by dividing the amount subject to insurance payment in fiscal year 2022 by the amount of expenses required for benefits for medical treatment, etc. in the same fiscal year; Ministry of Justice translation — Japanese Law Translation Database System **ロ** 当該年度における全ての保険者に係る加入者の見込総数を令和四年度における全ての保険者に係る加入者の総数で除して得た率 art-100/par-2/item-3/sub-2 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-3/sub-2 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-3/sub-2 the rate arrived at when the prospective total number of participants for all insurers in the relevant fiscal year is divided by the total number of participants for all insurers in fiscal 2022. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 第一項の後期高齢者交付金は、第百十八条第一項の規定により機構が徴収する後期高齢者支援金をもつて充てる。 art-100/par-3 · https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-3 · https://japanlaw.org/l/357AC0000000080/art-100/par-3 The Old-Old Subsidy referred to in paragraph (1) is to be covered by the aid for the old-old collected by the Organization pursuant to the provisions of Article 118, paragraph (1). machine translation, not official --- ## Cites - art-100/par-1: 第百二十一条第一項 → 高齢者の医療の確保に関する法律 第百二十一条第一項 (Article 121, paragraph (1)), art-121/par-1 — https://japanlaw.org/ja/elderly-medical-care-act/art-121/par-1 · https://japanlaw.org/l/357AC0000000080/art-121/par-1 - art-100/par-2: 前項 → 高齢者の医療の確保に関する法律 第百条第一項 (Article 100, paragraph (1)), art-100/par-1 — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-1 · https://japanlaw.org/l/357AC0000000080/art-100/par-1 - art-100/par-2: 第一号 → 高齢者の医療の確保に関する法律 第百条第二項第一号 (Article 100, paragraph (2), item (i)), art-100/par-2/item-1 — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-1 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-1 - art-100/par-2: 第二号 → 高齢者の医療の確保に関する法律 第百条第二項第二号 (Article 100, paragraph (2), item (ii)), art-100/par-2/item-2 — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-2 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-2 - art-100/par-2: 第三号 → 高齢者の医療の確保に関する法律 第百条第二項第三号 (Article 100, paragraph (2), item (iii)), art-100/par-2/item-3 — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-3 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-3 - art-100/par-2/item-3: 前号 → 高齢者の医療の確保に関する法律 第百条第二項第二号 (Article 100, paragraph (2), item (ii)), art-100/par-2/item-2 — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-2 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-2 - art-100/par-3: 第一項 → 高齢者の医療の確保に関する法律 第百条第一項 (Article 100, paragraph (1)), art-100/par-1 — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-1 · https://japanlaw.org/l/357AC0000000080/art-100/par-1 - art-100/par-3: 第百十八条第一項 → 高齢者の医療の確保に関する法律 第百十八条第一項 (Article 118, paragraph (1)), art-118/par-1 — https://japanlaw.org/ja/elderly-medical-care-act/art-118/par-1 · https://japanlaw.org/l/357AC0000000080/art-118/par-1 ## Cited by 9 provisions cite this one. No official source publishes this direction. - 高齢者の医療の確保に関する法律 第九十三条第一項（国の負担） — https://japanlaw.org/ja/elderly-medical-care-act/art-93/par-1 · https://japanlaw.org/l/357AC0000000080/art-93/par-1 - 高齢者の医療の確保に関する法律 第九十三条第二項第二号（国の負担） — https://japanlaw.org/ja/elderly-medical-care-act/art-93/par-2/item-2 · https://japanlaw.org/l/357AC0000000080/art-93/par-2/item-2 - 高齢者の医療の確保に関する法律 第百条第二項（後期高齢者交付金） — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2 · https://japanlaw.org/l/357AC0000000080/art-100/par-2 - 高齢者の医療の確保に関する法律 第百条第二項第三号（後期高齢者交付金） — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-2/item-3 · https://japanlaw.org/l/357AC0000000080/art-100/par-2/item-3 - 高齢者の医療の確保に関する法律 第百条第三項（後期高齢者交付金） — https://japanlaw.org/ja/elderly-medical-care-act/art-100/par-3 · https://japanlaw.org/l/357AC0000000080/art-100/par-3 - 高齢者の医療の確保に関する法律 第百一条第一項（後期高齢者交付金の減額） — https://japanlaw.org/ja/elderly-medical-care-act/art-101/par-1 · https://japanlaw.org/l/357AC0000000080/art-101/par-1 - 高齢者の医療の確保に関する法律 第百四条第三項（保険料） — https://japanlaw.org/ja/elderly-medical-care-act/art-104/par-3 · https://japanlaw.org/l/357AC0000000080/art-104/par-3 - 高齢者の医療の確保に関する法律 第百二十四条の九第一項 — https://japanlaw.org/ja/elderly-medical-care-act/art-124-9/par-1 · https://japanlaw.org/l/357AC0000000080/art-124-9/par-1 - 高齢者の医療の確保に関する法律 附則第十一条第一項 — https://japanlaw.org/ja/elderly-medical-care-act/suppl-5051-31/art-11/par-1 · https://japanlaw.org/l/357AC0000000080/suppl-5051-31/art-11/par-1 --- ## Sources - claude-opus-5-5 — Corrections to the Ministry of Justice's English of 高齢者の医療の確保に関する法律, written 2026-10-19 - e-Gov 法令検索, Digital Agency (デジタル庁) — 高齢者の医療の確保に関する法律 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/357AC0000000080/20261001_507AC0000000087), retrieved 2026-10-19 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on Assurance of Medical Care for Elderly People — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4903/tb), retrieved 2026-10-19 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on Assurance of Medical Care for Elderly People (高齢者の医療の確保に関する法律), Article 100, paragraph (2), item (ii) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/4903/tb), retrieved 2026-10-19 - claude-sonnet-5-5 — Machine translation, batch elderly-medical-care-act-20261019T112331-004, translated 2026-10-19 - claude-sonnet-5-5 — Machine translation, batch elderly-medical-care-act-20261019T115100-001, translated 2026-10-19 - This site's parser, version 209 — 高齢者の医療の確保に関する法律 — structure, counts, cross-references and defined terms, computed 2026-10-19