# 国民健康保険法 / National Health Insurance Act — 附　則 (Supplementary Provisions)

- 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: 附　則 (Supplementary Provisions) — address `suppl-3591-77`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/333AC0000000192/suppl-3591-77
- 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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## 附　則 昭和五九年八月一四日法律第七七号
<sup>suppl-3591-77 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77</sup>

### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-3591-77/art-1 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-1</sup>

**第一項**  この法律は、公布の日から起算して三月を超えない範囲内において政令で定める日から施行する。ただし、第一条中健康保険法第三条第一項の改正規定（同項の表に係る部分に限る。）、第二条中船員保険法第四条第一項の改正規定、同法第五十九条の改正規定（年金保険料率に係る部分に限る。）、同法第五十九条の次に一条を加える改正規定、同法第五十九条ノ二の改正規定、同法第六十条の改正規定（年金保険料率に係る部分に限る。）、同法附則第十二項及び第十三項の改正規定、同法附則第十八項から第二十項までの改正規定並びに附則第九条から第十二条までの規定は昭和五十九年十月一日から、第一条中健康保険法附則に二条を加える改正規定、第二条中船員保険法附則に三項を加える改正規定、第三条中国民健康保険法附則に五項を加える改正規定、附則第四十六条中国家公務員等共済組合法（昭和三十三年法律第百二十八号）附則第十二条の改正規定、附則第四十八条中地方公務員等共済組合法（昭和三十七年法律第百五十二号）附則第十七条の次に一条を加える改正規定並びに附則第五十条中私立学校教職員共済組合法（昭和二十八年法律第二百四十五号）第二十五条第一項の改正規定及び同項の表の改正規定（第百二十六条の五第二項の項に係る部分を除く。）は昭和六十年四月一日から、第二条中船員保険法第五十九条ノ三の改正規定は同年十月一日から、第一条中健康保険法第十三条第二号の改正規定及び附則第三条の規定は昭和六十一年四月一日から、第一条中健康保険法第四十三条ノ十四第一項の改正規定及び第四十四条ノ二の前に一条を加える改正規定（同法第四十四条第十一項に係る部分に限る。）、第三条中国民健康保険法第五十条第一項の改正規定、同法第五十三条の改正規定（同条第九項に係る部分に限る。）及び同法第五章中第八十一条の次に二節を加える改正規定（第八十一条の九から第八十一条の十二までに係る部分に限る。）並びに附則第六十一条（社会保険審議会及び社会保険医療協議会法（昭和二十五年法律第四十七号）第十四条の改正規定に限る。）の規定は公布の日から施行する。
<sup>suppl-3591-77/art-1/par-1 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-1/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-1/par-1</sup>
This Act comes into effect as of the date specified by Cabinet Order within a period not exceeding three months from the date of promulgation; provided, however, that the provisions of Article 1 amending Article 3, paragraph (1) of the Health Insurance Act (limited to the part pertaining to the table in that paragraph), the provisions of Article 2 amending Article 4, paragraph (1) of the Mariners Insurance Act, the provisions amending Article 59 of that Act (limited to the part pertaining to pension insurance premium rates), the provisions adding one Article after Article 59 of that Act, the provisions amending Article 59-2 of that Act, the provisions amending Article 60 of that Act (limited to the part pertaining to pension insurance premium rates), the provisions amending paragraphs (12) and (13) of the Supplementary Provisions of that Act, the provisions amending paragraphs (18) through (20) of the Supplementary Provisions of that Act, and the provisions of Articles 9 through 12 of the Supplementary Provisions come into effect as of October 1, 1984; the provisions of Article 1 adding two Articles to the Supplementary Provisions of the Health Insurance Act, the provisions of Article 2 adding three paragraphs to the Supplementary Provisions of the Mariners Insurance Act, the provisions of Article 3 adding five paragraphs to the Supplementary Provisions of the National Health Insurance Act, the provisions of Article 46 of the Supplementary Provisions amending Article 12 of the Supplementary Provisions of the National Public Officers, etc. Mutual Aid Association Act (Act No. 128 of 1958), the provisions of Article 48 of the Supplementary Provisions adding one Article after Article 17 of the Supplementary Provisions of the Local Public Officers, etc. Mutual Aid Association Act (Act No. 152 of 1962), and the provisions of Article 50 of the Supplementary Provisions amending Article 25, paragraph (1) of the Private School Personnel Mutual Aid Association Act (Act No. 245 of 1953) and amending the table in that paragraph (excluding the part pertaining to the entry for Article 126-5, paragraph (2)) come into effect as of April 1, 1985; the provisions of Article 2 amending Article 59-3 of the Mariners Insurance Act come into effect as of October 1 of the same year; the provisions of Article 1 amending Article 13, item (ii) of the Health Insurance Act and the provisions of Article 3 of the Supplementary Provisions come into effect as of April 1, 1986; and the provisions of Article 1 amending Article 43-14, paragraph (1) of the Health Insurance Act and adding one Article before Article 44-2 (limited to the part pertaining to Article 44, paragraph (11) of that Act), the provisions of Article 3 amending Article 50, paragraph (1) of the National Health Insurance Act, the provisions amending Article 53 of that Act (limited to the part pertaining to paragraph (9) of that Article) and the provisions adding two Sections after Article 81 in Chapter V of that Act (limited to the part pertaining to Articles 81-9 through 81-12), and the provisions of Article 61 of the Supplementary Provisions (limited to the provisions amending Article 14 of the Social Insurance Council and Social Insurance Medical Council Act (Act No. 47 of 1950)) come into effect as of the date of promulgation.
<sup>machine translation, not official</sup>

### 第十六条（国民健康保険法の一部改正に伴う経過措置） — Transitional Measures Accompanying the Partial Amendment of the National Health Insurance Act
<sup>caption: machine translation, not official</sup>
<sup>suppl-3591-77/art-16 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-16 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-16</sup>

**第一項**  この法律による改正後の国民健康保険法（以下「新国保法」という。）第八条の二に規定する者が施行日前に受けた療養に係る療養費の額については、なお従前の例による。
<sup>suppl-3591-77/art-16/par-1 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-16/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-16/par-1</sup>
The provisions then in force continue to govern the amount of medical expenses for medical treatment received before the Effective Date by a person prescribed in Article 8-2 of the National Health Insurance Act as amended by this Act (hereinafter referred to as the "Revised National Health Insurance Act").
<sup>machine translation, not official</sup>

### 第十七条
<sup>suppl-3591-77/art-17 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17</sup>

**第一項**  第一号に掲げる額が第二号に掲げる額を超える市町村については、新国保法第七十条の規定にかかわらず、国は、当分の間、政令で定めるところにより、第一号に掲げる額から第二号に掲げる額を控除した額の範囲内において、同条の規定により当該市町村について負担すべき額を減額することができる。
<sup>suppl-3591-77/art-17/par-1 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1</sup>
With respect to a Municipality for which the amount listed in item (i) exceeds the amount listed in item (ii), notwithstanding the provisions of Article 70 of the Revised National Health Insurance Act, the national government may, for the time being, as provided by Cabinet Order, reduce the amount to be borne by it for that Municipality pursuant to the provisions of that Article, within the scope of the amount obtained by deducting the amount listed in item (ii) from the amount listed in item (i).
<sup>machine translation, not official</sup>

  **一**  当該年度における新国保法第七十二条の四第一項の療養給付費交付金の額から当該年度における同項に規定する退職被保険者等に係る療養の給付、特定療養費及び療養費の支給に要する費用の額の百分の四十に相当する額を控除した額について、当該退職被保険者等に係る一部負担金の割合が新国保法第四十二条第一項第一号に掲げる被保険者に係る一部負担金の割合に等しいものとして政令で定めるところにより算定した額
  <sup>suppl-3591-77/art-17/par-1/item-1 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1/item-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1/item-1</sup>
  the amount calculated pursuant to Cabinet Order provisions with respect to the amount obtained by deducting, from the amount of the subsidy for medical treatment benefit expenses under Article 72-4, paragraph (1) of the Revised National Health Insurance Act for that fiscal year, an amount equal to forty hundredths of the amount of expenses required for the provision of benefits for medical treatment and the payment of specified medical expenses and medical expenses relating to the retired insured persons, etc. prescribed in that paragraph for that fiscal year, on the assumption that the ratio of co-payment for those retired insured persons, etc. is equal to the ratio of co-payment for insured persons listed in Article 42, paragraph (1), item (i) of the Revised National Health Insurance Act;
  <sup>machine translation, not official</sup>

  **二**  当該年度における新国保法第四十二条第一項第一号に掲げる被保険者に係る療養の給付、特定療養費及び療養費の支給に要する費用の額並びに老人保健医療費拠出金の納付に要する費用の額に七分の十を乗じて得た額の合算額の百分の四十に相当する額から当該年度における新国保法第七十条第一項及び第二項の規定により算定した額を控除した額
  <sup>suppl-3591-77/art-17/par-1/item-2 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1/item-2 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1/item-2</sup>
  the amount obtained by deducting the amount calculated pursuant to the provisions of Article 70, paragraphs (1) and (2) of the Revised National Health Insurance Act for that fiscal year from an amount equal to forty hundredths of the total sum of the amount of expenses required for the provision of benefits for medical treatment and the payment of specified medical expenses and medical expenses relating to insured persons listed in Article 42, paragraph (1), item (i) of the Revised National Health Insurance Act for that fiscal year, and the amount obtained by multiplying the amount of expenses required for paying the medical expense contribution for health and medical services for the elderly by ten-sevenths.
  <sup>machine translation, not official</sup>

**第二項**  新国保法第七十条第二項の規定は、前項各号に掲げる額の算定について準用する。
<sup>suppl-3591-77/art-17/par-2 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-2 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-2</sup>
The provisions of Article 70, paragraph (2) of the Revised National Health Insurance Act apply mutatis mutandis to the calculation of the amounts listed in the items of the preceding paragraph.
<sup>machine translation, not official</sup>

**第三項**  新国保法第七十二条第二項に規定する調整交付金の総額は、当分の間、同項の規定により算定される額と第一項の規定により減額される額の見込額の総額の合算額とする。
<sup>suppl-3591-77/art-17/par-3 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-3 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-3</sup>
The total amount of adjusting subsidies prescribed in Article 72, paragraph (2) of the Revised National Health Insurance Act shall be, for the time being, the total sum of the amount calculated pursuant to the provisions of that paragraph and the total estimated amount of the amounts to be reduced pursuant to the provisions of paragraph (1).
<sup>machine translation, not official</sup>

### 第六十三条（その他の経過措置の政令への委任） — Delegation of Other Transitional Measures to Cabinet Order
<sup>caption: machine translation, not official</sup>
<sup>suppl-3591-77/art-63 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-63 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-63</sup>

**第一項**  この附則に規定するもののほか、この法律の施行に伴い必要な経過措置は、政令で定める。
<sup>suppl-3591-77/art-63/par-1 · https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-63/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-63/par-1</sup>
Beyond what is provided for in these Supplementary Provisions, transitional measures necessary incidental to the enforcement of this Act are specified by Cabinet Order.
<sup>machine translation, not official</sup>

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## Cites
- suppl-3591-77/art-17/par-1: 第一号 → 国民健康保険法 附則第十七条第一項第一号 (Supplementary Provisions, Article 17, paragraph (1), item (i)), suppl-3591-77/art-17/par-1/item-1 — https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1/item-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1/item-1
- suppl-3591-77/art-17/par-1: 第二号 → 国民健康保険法 附則第十七条第一項第二号 (Supplementary Provisions, Article 17, paragraph (1), item (ii)), suppl-3591-77/art-17/par-1/item-2 — https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1/item-2 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1/item-2
- suppl-3591-77/art-17/par-2: 前項 → 国民健康保険法 附則第十七条第一項 (Supplementary Provisions, Article 17, paragraph (1)), suppl-3591-77/art-17/par-1 — https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1
- suppl-3591-77/art-17/par-3: 第一項 → 国民健康保険法 附則第十七条第一項 (Supplementary Provisions, Article 17, paragraph (1)), suppl-3591-77/art-17/par-1 — https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1

## Cited by

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

- 国民健康保険法 附則第十七条第一項 — https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-1
- 国民健康保険法 附則第十七条第二項 — https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-2 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-2
- 国民健康保険法 附則第十七条第三項 — https://japanlaw.org/ja/national-health-insurance-act/suppl-3591-77/art-17/par-3 · https://japanlaw.org/l/333AC0000000192/suppl-3591-77/art-17/par-3

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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-20261017T183826-014, translated 2026-10-18
- claude-sonnet-5-5 — Machine translation, batch national-health-insurance-act-20261017T183826-015, 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
