# 国民健康保険法 / National Health Insurance Act — 第六十四条 (Article 64) - 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: 第六十四条 (Article 64)（損害賠償請求権） — address `art-64` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/en/national-health-insurance-act/art-64 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/333AC0000000192/art-64 - 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. --- ### 第六十四条（損害賠償請求権） — (Claims for Damages) caption: Ministry of Justice translation — Japanese Law Translation Database System art-64 · https://japanlaw.org/en/national-health-insurance-act/art-64 · https://japanlaw.org/l/333AC0000000192/art-64 **第一項** 市町村及び組合は、給付事由が第三者の行為によつて生じた場合において、保険給付を行つたときは、その給付の価額（当該保険給付が療養の給付であるときは、当該療養の給付に要する費用の額から当該療養の給付に関し被保険者が負担しなければならない一部負担金に相当する額を控除した額とする。次条第一項において同じ。）の限度において、被保険者が第三者に対して有する損害賠償の請求権を取得する。 art-64/par-1 · https://japanlaw.org/en/national-health-insurance-act/art-64/par-1 · https://japanlaw.org/l/333AC0000000192/art-64/par-1 When the event giving rise to benefits is caused by an act of a third party and Municipalities and Societies provide insurance benefits, they shall obtain, to the extent of the amount of said benefits (or, when such insurance benefits are benefits for medical treatment, the amount calculated by deducting, from the amount of expenses incurred in such benefits for medical treatment, the amount equivalent to the co-payment to be borne by the insured person with respect to such benefits for medical treatment; hereinafter the same shall apply in paragraph (1) of the following Article), the right to claim compensation for damages held by the insured person against the third party. machine translation, not official **第二項** 前項の場合において、保険給付を受けるべき者が第三者から同一の事由について損害賠償を受けたときは、市町村及び組合は、その価額の限度において、保険給付を行う責を免かれる。 art-64/par-2 · https://japanlaw.org/en/national-health-insurance-act/art-64/par-2 · https://japanlaw.org/l/333AC0000000192/art-64/par-2 In the case referred to in the preceding paragraph, when a person to be granted insurance benefits receives compensation for damages for the same reason from a third party, Municipalities and Societies shall be exempted from the responsibility to pay said insurance benefits to the extent of the amount of such compensation. machine translation, not official **第三項** 都道府県は、当該都道府県内の市町村による保険給付の適正な実施を確保するため、広域的又は専門的な見地から必要があると認められる場合として厚生労働省令で定める場合には、市町村から委託を受けて、当該市町村が第一項の規定により取得した同項の請求権に係る損害賠償金の徴収又は収納の事務の全部又は一部を行うことができる。 art-64/par-3 · https://japanlaw.org/en/national-health-insurance-act/art-64/par-3 · https://japanlaw.org/l/333AC0000000192/art-64/par-3 In order to ensure the appropriate implementation of insurance benefits by the Municipalities within the prefecture, in the cases specified by Order of the Ministry of Health, Labour and Welfare as cases found necessary from a wide-area or specialized perspective, a prefecture may, upon entrustment from a Municipality, carry out all or part of the affairs of collecting or receiving damages pertaining to the right of claim under paragraph (1) that the Municipality has acquired pursuant to the provisions of that paragraph. machine translation, not official **第四項** 市町村及び組合並びに市町村から委託を受けて前項の規定による事務を行う都道府県は、第一項の規定により取得した同項の請求権に係る損害賠償金の徴収又は収納の事務を第四十五条第五項に規定する国民健康保険団体連合会であつて厚生労働省令で定めるものに委託することができる。 art-64/par-4 · https://japanlaw.org/en/national-health-insurance-act/art-64/par-4 · https://japanlaw.org/l/333AC0000000192/art-64/par-4 Municipalities and Societies, and prefectures that carry out affairs under the provisions of the preceding paragraph upon entrustment from Municipalities, may entrust the affairs of collecting or receiving damages pertaining to the right of claim under paragraph (1) acquired pursuant to the provisions of that paragraph to a Federation of National Health Insurance Associations set forth in Article 45, paragraph (5) that is specified by Order of the Ministry of Health, Labour and Welfare. machine translation, not official **第五項** 国は、市町村から委託を受けて第三項の規定による事務を行う都道府県に対し、当該事務が円滑に実施されるために必要な措置を講ずるよう努めるものとする。 art-64/par-5 · https://japanlaw.org/en/national-health-insurance-act/art-64/par-5 · https://japanlaw.org/l/333AC0000000192/art-64/par-5 The national government is to endeavor to take the measures necessary for the smooth implementation of those affairs for a prefecture that carries out the affairs under the provisions of paragraph (3) upon entrustment from a Municipality. machine translation, not official --- ## Cites - art-64/par-1: 次条第一項 → 国民健康保険法 第六十五条第一項 (Article 65, paragraph (1)), art-65/par-1 — https://japanlaw.org/en/national-health-insurance-act/art-65/par-1 · https://japanlaw.org/l/333AC0000000192/art-65/par-1 - art-64/par-2: 前項 → 国民健康保険法 第六十四条第一項 (Article 64, paragraph (1)), art-64/par-1 — https://japanlaw.org/en/national-health-insurance-act/art-64/par-1 · https://japanlaw.org/l/333AC0000000192/art-64/par-1 - art-64/par-3: 第一項 → 国民健康保険法 第六十四条第一項 (Article 64, paragraph (1)), art-64/par-1 — https://japanlaw.org/en/national-health-insurance-act/art-64/par-1 · https://japanlaw.org/l/333AC0000000192/art-64/par-1 - art-64/par-4: 前項 → 国民健康保険法 第六十四条第三項 (Article 64, paragraph (3)), art-64/par-3 — https://japanlaw.org/en/national-health-insurance-act/art-64/par-3 · https://japanlaw.org/l/333AC0000000192/art-64/par-3 - art-64/par-4: 第一項 → 国民健康保険法 第六十四条第一項 (Article 64, paragraph (1)), art-64/par-1 — https://japanlaw.org/en/national-health-insurance-act/art-64/par-1 · https://japanlaw.org/l/333AC0000000192/art-64/par-1 - art-64/par-4: 第四十五条第五項 → 国民健康保険法 第四十五条第五項 (Article 45, paragraph (5)), art-45/par-5 — https://japanlaw.org/en/national-health-insurance-act/art-45/par-5 · https://japanlaw.org/l/333AC0000000192/art-45/par-5 - art-64/par-5: 第三項 → 国民健康保険法 第六十四条第三項 (Article 64, paragraph (3)), art-64/par-3 — https://japanlaw.org/en/national-health-insurance-act/art-64/par-3 · https://japanlaw.org/l/333AC0000000192/art-64/par-3 ## Cited by 5 provisions cite this one. No official source publishes this direction. - 国民健康保険法 第六十四条第二項（損害賠償請求権） — https://japanlaw.org/en/national-health-insurance-act/art-64/par-2 · https://japanlaw.org/l/333AC0000000192/art-64/par-2 - 国民健康保険法 第六十四条第三項（損害賠償請求権） — https://japanlaw.org/en/national-health-insurance-act/art-64/par-3 · https://japanlaw.org/l/333AC0000000192/art-64/par-3 - 国民健康保険法 第六十四条第四項（損害賠償請求権） — https://japanlaw.org/en/national-health-insurance-act/art-64/par-4 · https://japanlaw.org/l/333AC0000000192/art-64/par-4 - 国民健康保険法 第六十四条第五項（損害賠償請求権） — https://japanlaw.org/en/national-health-insurance-act/art-64/par-5 · https://japanlaw.org/l/333AC0000000192/art-64/par-5 - 国民健康保険法 第八十五条の三第二項第二号（業務） — https://japanlaw.org/en/national-health-insurance-act/art-85-3/par-2/item-2 · https://japanlaw.org/l/333AC0000000192/art-85-3/par-2/item-2 --- ## 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-20261017T183826-004, 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