# 健康保険法 / Health Insurance Act — 第百二十一条 (Article 121)

- 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: 第百二十一条 (Article 121) — address `art-121`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/health-insurance-act/art-121
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/211AC0000000070/art-121
- 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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### 第百二十一条
<sup>art-121 · https://japanlaw.org/ja/health-insurance-act/art-121 · https://japanlaw.org/l/211AC0000000070/art-121</sup>

  **第一項**  保険者は、保険給付を受ける者が、正当な理由なしに、第五十九条の規定による命令に従わず、又は答弁若しくは受診を拒んだときは、保険給付の全部又は一部を行わないことができる。
  <sup>art-121/par-1 · https://japanlaw.org/ja/health-insurance-act/art-121/par-1 · https://japanlaw.org/l/211AC0000000070/art-121/par-1</sup>
  When a person who is to receive insurance benefits fails to comply with an order issued pursuant to the provisions of Article 59 or refuses to answer questions or to undergo a medical examination without a justifiable reason, the insurer may refrain from providing all or part of the applicable insurance benefits.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-121/par-1: 第五十九条 → 健康保険法 第五十九条 (Article 59), art-59 — https://japanlaw.org/ja/health-insurance-act/art-59 · https://japanlaw.org/l/211AC0000000070/art-59

## Cited by

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

- 健康保険法 第五十九条第一項（文書の提出等） — https://japanlaw.org/ja/health-insurance-act/art-59/par-1 · https://japanlaw.org/l/211AC0000000070/art-59/par-1
- 健康保険法 第百四十九条第一項（準用） — https://japanlaw.org/ja/health-insurance-act/art-149/par-1 · https://japanlaw.org/l/211AC0000000070/art-149/par-1

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## Sources

- 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
- This site's parser, version 189 — 健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-10
