# 健康保険法 / Health Insurance Act — 第五十一条 (Article 51)

- Law: 健康保険法 (Health Insurance Act), 大正十一年法律第七十号
- English title "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: 第五十一条 (Article 51)（確認の請求） — address `art-51`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/health-insurance-act/art-51
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/211AC0000000070/art-51
- 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.

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### 第五十一条（確認の請求） — (Request for Confirmation)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-51 · https://japanlaw.org/ja/health-insurance-act/art-51 · https://japanlaw.org/l/211AC0000000070/art-51</sup>

  **第一項**  被保険者又は被保険者であった者は、いつでも、第三十九条第一項の規定による確認を請求することができる。
  <sup>art-51/par-1 · https://japanlaw.org/ja/health-insurance-act/art-51/par-1 · https://japanlaw.org/l/211AC0000000070/art-51/par-1</sup>
  A person who is or was an insured person may at any time demand confirmation pursuant to the provisions of Article 39, paragraph (1).
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第二項**  保険者等は、前項の規定による請求があった場合において、その請求に係る事実がないと認めるときは、その請求を却下しなければならない。
  <sup>art-51/par-2 · https://japanlaw.org/ja/health-insurance-act/art-51/par-2 · https://japanlaw.org/l/211AC0000000070/art-51/par-2</sup>
  When an insurer receives a request referred to in the provisions of the preceding paragraph, the insurer must dismiss the request if no fact pertaining to it is found.
  <sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "When an insurer receives a request referred to in the provisions of Article 48, the insurer must dismiss the request if no fact pertaining to it is found." — https://www.japaneselawtranslation.go.jp/en/laws/view/3266/tb</sup>

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## Cites
- art-51/par-1: 第三十九条第一項 → 健康保険法 第三十九条第一項 (Article 39, paragraph (1)), art-39/par-1 — https://japanlaw.org/ja/health-insurance-act/art-39/par-1 · https://japanlaw.org/l/211AC0000000070/art-39/par-1
- art-51/par-2: 前項 → 健康保険法 第五十一条第一項 (Article 51, paragraph (1)), art-51/par-1 — https://japanlaw.org/ja/health-insurance-act/art-51/par-1 · https://japanlaw.org/l/211AC0000000070/art-51/par-1

## Cited by

3 provisions cite this one. No official source publishes this direction.

- 健康保険法 第三十九条第二項（資格の得喪の確認） — https://japanlaw.org/ja/health-insurance-act/art-39/par-2 · https://japanlaw.org/l/211AC0000000070/art-39/par-2
- 健康保険法 第五十一条第二項（確認の請求） — https://japanlaw.org/ja/health-insurance-act/art-51/par-2 · https://japanlaw.org/l/211AC0000000070/art-51/par-2
- 健康保険法 第二百四条第一項第十号（機構への厚生労働大臣の権限に係る事務の委任） — https://japanlaw.org/ja/health-insurance-act/art-204/par-1/item-10 · https://japanlaw.org/l/211AC0000000070/art-204/par-1/item-10

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## Sources

- claude-opus-5-5 — Corrections to the Ministry of Justice's English of paragraphs, written 2026-10-11
- e-Gov 法令検索, Digital Agency (デジタル庁) — 健康保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/211AC0000000070/20261001_507AC0000000087), retrieved 2026-10-10
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Health Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3266/tb), retrieved 2026-10-10
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Health Insurance Act (健康保険法), Article 51, paragraph (2) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/3266/tb), retrieved 2026-10-10
- This site's parser, version 189 — 健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-10
