# 高齢者の医療の確保に関する法律 / Act on Assurance of Medical Care for Elderly People — 第百六十一条の二 (Article 161-2) - 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: 第百六十一条の二 (Article 161-2)（被保険者番号等の利用制限等） — address `art-161-2` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/en/elderly-medical-care-act/art-161-2 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/357AC0000000080/art-161-2 - 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. --- ### 第百六十一条の二（被保険者番号等の利用制限等） — (Restrictions on the Use of insured Numbers) caption: Ministry of Justice translation — Japanese Law Translation Database System art-161-2 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2 · https://japanlaw.org/l/357AC0000000080/art-161-2 **第一項** 厚生労働大臣、後期高齢者医療広域連合、保険医療機関等、指定訪問看護事業者その他の後期高齢者医療の事業又は当該事業に関連する事務の遂行のため被保険者番号等（保険者番号（厚生労働大臣が後期高齢者医療の事業において後期高齢者医療広域連合を識別するための番号として、後期高齢者医療広域連合ごとに定めるものをいう。）及び被保険者番号（後期高齢者医療広域連合が被保険者の資格を管理するための番号として、被保険者ごとに定めるものをいう。）をいう。以下この条において同じ。）を利用する者として厚生労働省令で定める者（以下この条において「厚生労働大臣等」という。）は、当該事業又は事務の遂行のため必要がある場合を除き、何人に対しても、その者又はその者以外の者に係る被保険者番号等を告知することを求めてはならない。 art-161-2/par-1 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-1 The Minister of Health, Labour and Welfare, an Association of Medical Care Systems for the Elderly Aged 75 and older, a medical institution providing services covered by health insurance, etc., a designated home-nursing provider or any other person specified by Order of the Ministry of Health, Labour and Welfare as a person who uses an insured number, etc. (meaning an insurer's number (meaning a number specified by the Minister of Health, Labour and Welfare for each Association of Medical Care Systems for the Elderly Aged 75 and older as a number for identifying an Association of Medical Care Systems for the Elderly Aged 75 and older in the medical services for the old-old) and an insured number (meaning a number specified by the Association of Medical Care Systems for the Elderly Aged 75 and older for each insured as a number for managing the qualifications of an insured); hereinafter the same applies in this Article) for the implementation of the services for medical services for the old-old or affairs related to the services (hereinafter referred to as the "Minister of Health, Labour and Welfare, etc." in this Article) must not request any person to notify the person or any other person of the insured number, etc. unless it is necessary for the implementation of the services or affairs. Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "An Minister of Health, Labour and Welfare, a Association of Medical Care Systems for the Elderly Aged 75 and older, a medical institution providing services covered by health insurance, etc., a designated home-nursing provider or any other person specified by Order of the Order of the Ministry of Health, Labour and Welfare as a person who uses an insured number, etc. (meaning an insurer's number (meaning a number specified by the Minister of Health, Labour and Welfare for each Association of Medical Care Systems for the Elderly Aged 75 and older as a number for identifying an Association of Medical Care Systems for the Elderly Aged 75 and older in the medical services for the old-old) and an insured number (meaning a number specified by the Association of Medical Care Systems for the Elderly Aged 75 and older for each insured as a number for managing the qualifications of an insured; the same applies hereinafter in this Article); hereinafter the same applies in this Article) for the implementation of the services for medical services for the old-old or affairs related to the services (hereinafter referred to as an "Minister of Health, Labour and Welfare, etc." in this Article) must not request any person to notify the person or any other person of the insured number, etc. unless it is necessary for the implementation of the services or affairs." — https://www.japaneselawtranslation.go.jp/en/laws/view/4903/tb **第二項** 厚生労働大臣等以外の者は、後期高齢者医療の事業又は当該事業に関連する事務の遂行のため被保険者番号等の利用が特に必要な場合として厚生労働省令で定める場合を除き、何人に対しても、その者又はその者以外の者に係る被保険者番号等を告知することを求めてはならない。 art-161-2/par-2 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-2 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-2 Except in cases specified by Order of the Ministry of Health, Labour and Welfare as cases where the use of the insured person number, etc. is particularly necessary for the conduct of old-old medical care services or affairs related to those services, a person other than the Minister of Health, Labour and Welfare, etc. must not request any person to notify the insured person number, etc. pertaining to that person or to a person other than that person. machine translation, not official **第三項** 何人も、次に掲げる場合を除き、その者が業として行う行為に関し、その者に対し売買、貸借、雇用その他の契約（以下この項において「契約」という。）の申込みをしようとする者若しくは申込みをする者又はその者と契約の締結をした者に対し、当該者又は当該者以外の者に係る被保険者番号等を告知することを求めてはならない。 art-161-2/par-3 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3 No person may, except in the following cases, with regard to an act that the person conducts as a business, request a person who intends to make an application for a contract of sale, lease, employment, or otherwise (hereinafter in this paragraph referred to as a "contract") with the person, a person who makes such an application, or a person who has concluded a contract with the person, to disclose the insured person number, etc. pertaining to the person requested or a person other than the person requested: machine translation, not official **一** 厚生労働大臣等が、第一項に規定する場合に、被保険者番号等を告知することを求めるとき。 art-161-2/par-3/item-1 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3/item-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3/item-1 when the Minister of Health, Labour and Welfare, etc. requests notification of the insured number, etc. in the case prescribed in paragraph (1); Ministry of Justice translation — Japanese Law Translation Database System **二** 厚生労働大臣等以外の者が、前項に規定する厚生労働省令で定める場合に、被保険者番号等を告知することを求めるとき。 art-161-2/par-3/item-2 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3/item-2 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3/item-2 where a person other than the Minister of Health, Labour and Welfare, etc. requests the disclosure of the insured person number, etc. in a case specified by Order of the Ministry of Health, Labour and Welfare prescribed in the preceding paragraph. machine translation, not official **第四項** 何人も、次に掲げる場合を除き、業として、被保険者番号等の記録されたデータベース（その者以外の者に係る被保険者番号等を含む情報の集合物であつて、それらの情報を電子計算機を用いて検索することができるように体系的に構成したものをいう。）であつて、当該データベースに記録された情報が他に提供されることが予定されているもの（以下この項において「提供データベース」という。）を構成してはならない。 art-161-2/par-4 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4 Except in the following cases, it is prohibited for any person to engage in the business of constructing a database in which insured numbers, etc. are recorded (meaning a collection of data that includes insured numbers, etc. for a person other than the person in question, which has been systematically organized so as to be searchable using a computer) and the data recorded in that database is intended to be provided to others (hereinafter referred to as a "provided database" in this paragraph): Ministry of Justice translation — Japanese Law Translation Database System **一** 厚生労働大臣等が、第一項に規定する場合に、提供データベースを構成するとき。 art-161-2/par-4/item-1 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4/item-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4/item-1 if the Minister of Health, Labour and Welfare, etc. constitutes the provided database in the case prescribed in paragraph (1); Ministry of Justice translation — Japanese Law Translation Database System **二** 厚生労働大臣等以外の者が、第二項に規定する厚生労働省令で定める場合に、提供データベースを構成するとき。 art-161-2/par-4/item-2 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4/item-2 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4/item-2 when a person other than the Minister of Health, Labour and Welfare, etc. constructs the provided database in cases specified by Order of the Ministry of Health, Labour and Welfare as prescribed in paragraph (2). Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "when a person other than the Minister of Health, Labour and Welfare, etc. constructs the provided database in cases specified by Order of the Order of the Ministry of Health, Labour and Welfare as prescribed in paragraph (2)." — https://www.japaneselawtranslation.go.jp/en/laws/view/4903/tb **第五項** 厚生労働大臣は、前二項の規定に違反する行為が行われた場合において、当該行為をした者が更に反復してこれらの規定に違反する行為をするおそれがあると認めるときは、当該行為をした者に対し、当該行為を中止することを勧告し、又は当該行為が中止されることを確保するために必要な措置を講ずることを勧告することができる。 art-161-2/par-5 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-5 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-5 If an act in violation of the provisions of the preceding two paragraphs has been committed and the Minister of Health, Labour and Welfare finds that the person who committed that act is likely to commit an act in violation of those provisions again and again, the Minister may recommend the person who committed that act to discontinue that act or take the necessary measures to ensure that that act will be discontinued. Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "If an act in violation of the provisions of the preceding two paragraphs has been committed and the Minister of Health, Labour and Welfare finds that the person who committed that act is likely to commit an act in violation of those provisions again and again, the Prime Minister may recommend the person who committed that act to discontinue that act or take the necessary measures to ensure that that act will be discontinued." — https://www.japaneselawtranslation.go.jp/en/laws/view/4903/tb **第六項** 厚生労働大臣は、前項の規定による勧告を受けた者がその勧告に従わないときは、その者に対し、期限を定めて、当該勧告に従うべきことを命ずることができる。 art-161-2/par-6 · https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-6 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-6 If a person who has received recommendations under the provisions of the preceding paragraph does not follow the recommendations, the Minister of Health, Labour and Welfare may order the person to follow the recommendations by a set deadline. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-161-2/par-1: この条 → 高齢者の医療の確保に関する法律 第百六十一条の二 (Article 161-2), art-161-2 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2 · https://japanlaw.org/l/357AC0000000080/art-161-2 - art-161-2/par-3: この項 → 高齢者の医療の確保に関する法律 第百六十一条の二第三項 (Article 161-2, paragraph (3)), art-161-2/par-3 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3 - art-161-2/par-3/item-1: 第一項 → 高齢者の医療の確保に関する法律 第百六十一条の二第一項 (Article 161-2, paragraph (1)), art-161-2/par-1 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-1 - art-161-2/par-3/item-2: 前項 → 高齢者の医療の確保に関する法律 第百六十一条の二第二項 (Article 161-2, paragraph (2)), art-161-2/par-2 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-2 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-2 - art-161-2/par-4: この項 → 高齢者の医療の確保に関する法律 第百六十一条の二第四項 (Article 161-2, paragraph (4)), art-161-2/par-4 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4 - art-161-2/par-4/item-1: 第一項 → 高齢者の医療の確保に関する法律 第百六十一条の二第一項 (Article 161-2, paragraph (1)), art-161-2/par-1 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-1 - art-161-2/par-4/item-2: 第二項 → 高齢者の医療の確保に関する法律 第百六十一条の二第二項 (Article 161-2, paragraph (2)), art-161-2/par-2 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-2 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-2 - art-161-2/par-5: 前二項 → 高齢者の医療の確保に関する法律 第百六十一条の二第三項 (Article 161-2, paragraph (3)), art-161-2/par-3 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3 - art-161-2/par-5: 前二項 → 高齢者の医療の確保に関する法律 第百六十一条の二第四項 (Article 161-2, paragraph (4)), art-161-2/par-4 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4 - art-161-2/par-6: 前項 → 高齢者の医療の確保に関する法律 第百六十一条の二第五項 (Article 161-2, paragraph (5)), art-161-2/par-5 — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-5 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-5 ## Cited by 11 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 第百六十一条の二第一項（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-1 - 高齢者の医療の確保に関する法律 第百六十一条の二第三項（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3 - 高齢者の医療の確保に関する法律 第百六十一条の二第三項第一号（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3/item-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3/item-1 - 高齢者の医療の確保に関する法律 第百六十一条の二第三項第二号（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-3/item-2 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-3/item-2 - 高齢者の医療の確保に関する法律 第百六十一条の二第四項（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4 - 高齢者の医療の確保に関する法律 第百六十一条の二第四項第一号（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4/item-1 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4/item-1 - 高齢者の医療の確保に関する法律 第百六十一条の二第四項第二号（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-4/item-2 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-4/item-2 - 高齢者の医療の確保に関する法律 第百六十一条の二第五項（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-5 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-5 - 高齢者の医療の確保に関する法律 第百六十一条の二第六項（被保険者番号等の利用制限等） — https://japanlaw.org/en/elderly-medical-care-act/art-161-2/par-6 · https://japanlaw.org/l/357AC0000000080/art-161-2/par-6 - 高齢者の医療の確保に関する法律 第百六十一条の三第一項（報告及び検査） — https://japanlaw.org/en/elderly-medical-care-act/art-161-3/par-1 · https://japanlaw.org/l/357AC0000000080/art-161-3/par-1 - 高齢者の医療の確保に関する法律 第百六十七条の三第一項 — https://japanlaw.org/en/elderly-medical-care-act/art-167-3/par-1 · https://japanlaw.org/l/357AC0000000080/art-167-3/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 161-2, paragraph (1) — the Ministry of Justice's English as printed (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 161-2, paragraph (4), item (ii) — the Ministry of Justice's English as printed (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 161-2, paragraph (5) — 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-20261019T112331-005, translated 2026-10-19 - claude-sonnet-5-5 — Machine translation, batch elderly-medical-care-act-20261019T120156-001, 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