# 国民健康保険法 / National Health Insurance Act — 第八十一条の三 (Article 81-3)

- 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: 第八十一条の三 (Article 81-3)（特別高額医療費共同事業） — address `art-81-3`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/national-health-insurance-act/art-81-3
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/333AC0000000192/art-81-3
- 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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### 第八十一条の三（特別高額医療費共同事業） — Special High-Cost Medical Expenses Joint Project
<sup>caption: machine translation, not official</sup>
<sup>art-81-3 · https://japanlaw.org/ja/national-health-insurance-act/art-81-3 · https://japanlaw.org/l/333AC0000000192/art-81-3</sup>

**第一項**  指定法人は、政令で定めるところにより、著しく高額な医療に関する給付に要する費用が国民健康保険の財政に与える影響を緩和するため、都道府県に対して著しく高額な医療に関する給付に要する費用に係る交付金を交付する事業（以下この条において「特別高額医療費共同事業」という。）を行うものとする。
<sup>art-81-3/par-1 · https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-1 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-1</sup>
A Designated Association is to, as provided by Cabinet Order, carry out a project to provide grants to prefectures with respect to the expenses required for extremely high-cost benefits relating to medical services (hereinafter referred to as the "special high-cost medical expenses joint project" in this Article), in order to mitigate the impact of the expenses required for extremely high-cost benefits relating to medical services on the finances of national health insurance.
<sup>machine translation, not official</sup>

**第二項**  指定法人は、特別高額医療費共同事業に要する費用に充てるため、政令で定めるところにより、都道府県から特別高額医療費共同事業拠出金を徴収するものとする。
<sup>art-81-3/par-2 · https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-2 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-2</sup>
In order to cover the expenses required for the special high-cost medical expenses joint project, a Designated Association is to collect contributions for the special high-cost medical expenses joint project from prefectures, as provided by Cabinet Order.
<sup>machine translation, not official</sup>

**第三項**  都道府県は、前項の規定による特別高額医療費共同事業拠出金を納付しなければならない。
<sup>art-81-3/par-3 · https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-3 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-3</sup>
A prefecture must pay the contribution for the special high-cost medical expenses joint project under the provisions of the preceding paragraph.
<sup>machine translation, not official</sup>

**第四項**  国は、政令で定めるところにより、都道府県に対し、第二項の規定による特別高額医療費共同事業拠出金（特別高額医療費共同事業に関する事務の処理に要する費用に係るものを除く。）の納付に要する費用について、予算の範囲内で、その一部を負担する。
<sup>art-81-3/par-4 · https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-4 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-4</sup>
The national government is to bear, for prefectures, a part of the expenses required for paying the contribution for the special high-cost medical expenses joint project under the provisions of paragraph (2) (excluding that pertaining to the expenses required for handling the affairs relating to the special high-cost medical expenses joint project), within the limits of the budget, as provided by Cabinet Order.
<sup>machine translation, not official</sup>

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## Cites
- art-81-3/par-1: この条 → 国民健康保険法 第八十一条の三 (Article 81-3), art-81-3 — https://japanlaw.org/ja/national-health-insurance-act/art-81-3 · https://japanlaw.org/l/333AC0000000192/art-81-3
- art-81-3/par-3: 前項 → 国民健康保険法 第八十一条の三第二項 (Article 81-3, paragraph (2)), art-81-3/par-2 — https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-2 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-2
- art-81-3/par-4: 第二項 → 国民健康保険法 第八十一条の三第二項 (Article 81-3, paragraph (2)), art-81-3/par-2 — https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-2 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-2

## Cited by

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

- 国民健康保険法 第八十一条の三第一項（特別高額医療費共同事業） — https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-1 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-1
- 国民健康保険法 第八十一条の三第三項（特別高額医療費共同事業） — https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-3 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-3
- 国民健康保険法 第八十一条の三第四項（特別高額医療費共同事業） — https://japanlaw.org/ja/national-health-insurance-act/art-81-3/par-4 · https://japanlaw.org/l/333AC0000000192/art-81-3/par-4

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## 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-20261017T183826-007, translated 2026-10-19
- This site's parser, version 209 — 国民健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-17
