# 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-5081-31`
- Text: the text as amended with effect from 2028-04-01, standing until 2028-06-03 as now scheduled, since the next amendment's day is not fixed — NOT yet in force (revision 20280401_508AC0000000031)
- URL (this text's page, at this provision): https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31
- The same address in the text in force (its wording there may differ): https://japanlaw.org/en/national-health-insurance-act/suppl-5081-31
- Every provision below carries its address and its place on this text's page 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.
The Ministry's English is given only where this text's Japanese is a wording
the Ministry translated — the same as the text in force, or for a text not yet
in force, a wording it translated ahead; every other paragraph's English is
machine translation.

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## 附　則 令和八年六月五日法律第三一号
<sup>suppl-5081-31 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31</sup>

### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-31/art-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1</sup>

**第一項**  この法律は、令和九年四月一日から施行する。ただし、次の各号に掲げる規定は、当該各号に定める日から施行する。
<sup>suppl-5081-31/art-1/par-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1</sup>
This Act comes into effect on April 1, 2027; provided, however, that the provisions set forth in the following items come into effect as of the dates specified respectively in those items.
<sup>machine translation, not official</sup>

  **一**  第一条中健康保険法第七条の二の次に一条を加える改正規定、同法第七条の二十九の次に一条を加える改正規定並びに同法第百六十条第三項第三号及び第五項並びに第百六十条の三の改正規定並びに同法附則第五条の三の改正規定及び同法附則第五条の四を附則第五条の九とし、附則第五条の三の次に五条を加える改正規定、第三条中船員保険法第七十六条第六項の改正規定並びに第八条中高齢者の医療の確保に関する法律第二十条ただし書及び第二十二条の改正規定並びに次条から附則第十条まで並びに附則第十六条及び第三十八条の規定　公布の日
  <sup>suppl-5081-31/art-1/par-1/item-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-1</sup>
  the provision, in Article 1, adding one Article after Article 7-2 of the Health Insurance Act, the provision adding one Article after Article 7-29 of that Act, the provisions amending Article 160, paragraph (3), item (iii) and paragraph (5), and Article 160-3 of that Act, the provision amending Article 5-3 of the Supplementary Provisions of that Act, and the provision making Article 5-4 of the Supplementary Provisions of that Act Article 5-9 and adding five Articles after Article 5-3 of the Supplementary Provisions; the provision, in Article 3, amending Article 76, paragraph (6) of the Mariners Insurance Act; the provisions, in Article 8, amending the proviso to Article 20 and Article 22 of the Act on Assurance of Medical Care for Elderly People; and the provisions of the following Article through Article 10 of the Supplementary Provisions and Articles 16 and 38 of the Supplementary Provisions: the date of promulgation;
  <sup>machine translation, not official</sup>

  **二**  第一条中健康保険法第百十五条第二項の改正規定、第三条中船員保険法第八十三条第二項の改正規定、第五条中国民健康保険法第五十七条の二第二項の改正規定、第八条中高齢者の医療の確保に関する法律第八十四条第二項の改正規定、第十条中国家公務員共済組合法第六十条の二第二項の改正規定及び第十一条中地方公務員等共済組合法第六十二条の二第二項の改正規定　令和八年八月一日
  <sup>suppl-5081-31/art-1/par-1/item-2 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-2</sup>
  the provision, in Article 1, amending Article 115, paragraph (2) of the Health Insurance Act, the provision, in Article 3, amending Article 83, paragraph (2) of the Mariners Insurance Act, the provision, in Article 5, amending Article 57-2, paragraph (2) of the National Health Insurance Act, the provision, in Article 8, amending Article 84, paragraph (2) of the Act on Assurance of Medical Care for Elderly People, the provision, in Article 10, amending Article 60-2, paragraph (2) of the National Public Officers Mutual Aid Association Act, and the provision, in Article 11, amending Article 62-2, paragraph (2) of the Local Public Officers, etc. Mutual Aid Association Act: August 1, 2026;
  <sup>machine translation, not official</sup>

  **三**  略
  <sup>suppl-5081-31/art-1/par-1/item-3 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-3</sup>
  Omitted
  <sup>machine translation, not official</sup>

  **四**  第一条中健康保険法第五十八条第三項、第六十三条、第六十五条第三項第二号、第七十条第二項、第七十二条第二項、第八十条第一号及び第三号から第五号まで、第八十一条第一号及び第三号、第八十二条第一項、第八十六条、第八十七条第二項及び第三項、第百十条第二項第一号及び第三項、第百三十一条第一項、第百四十九条の表並びに第二百五条の四第一項の改正規定、第三条中船員保険法第四十七条第三項、第五十三条第二項、第六十三条、第六十四条第二項及び第四項、第七十六条第二項第一号及び第三項並びに第百五十三条の十第一項の改正規定、第五条中国民健康保険法第四条第三項の改正規定（「第四項」を「第五項」に改める部分に限る。）並びに同法第九条第三項、第三十六条第二項、第五十三条、第五十四条第三項及び第四項、第五十四条の三、第六十五条第三項、第六十六条の二、第七十五条の三、第八十二条第十四項第一号、第八十五条の三第一項、第百十三条の三第一項、第百十九条、第百十九条の二並びに第百二十一条第二項の改正規定、第八条中高齢者の医療の確保に関する法律第五十四条第四項、第五十九条第三項、第六十四条、第七十六条、第七十七条第三項及び第四項、第八十二条、第百五十五条第一項、第百六十五条、第百六十五条の二第一項並びに第百六十七条第二項第三号及び第四号の改正規定、第十条中国家公務員共済組合法第五十四条第二項、第五十五条の五、第五十六条第三項及び第四項並びに第五十七条第二項第一号及び第三項の改正規定、第十一条中地方公務員等共済組合法第五十六条第二項、第五十七条の五、第五十八条第三項及び第四項並びに第五十九条第二項第一号及び第三項の改正規定並びに第十七条の規定並びに附則第十一条、第十七条、第二十条、第二十五条、第二十八条及び第三十一条の規定、附則第三十九条中地方自治法（昭和二十二年法律第六十七号）別表第一国民健康保険法（昭和三十三年法律第百九十二号）の項の改正規定（「第五十三条第三項」を「第五十三条第四項」に、「第五十四条の三第六項」を「第五十四条の三第七項」に改める部分に限る。）及び同表高齢者の医療の確保に関する法律（昭和五十七年法律第八十号）の項の改正規定（「第七十六条第六項」を「第七十六条第七項」に、「第八十二条第六項」を「第八十二条第七項」に改める部分に限る。）並びに附則第四十七条の規定　公布の日から起算して一年を超えない範囲内において政令で定める日
  <sup>suppl-5081-31/art-1/par-1/item-4 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-4</sup>
  the provisions, in Article 1, amending Article 58, paragraph (3), Article 63, Article 65, paragraph (3), item (ii), Article 70, paragraph (2), Article 72, paragraph (2), Article 80, item (i) and items (iii) through (v), Article 81, items (i) and (iii), Article 82, paragraph (1), Article 86, Article 87, paragraphs (2) and (3), Article 110, paragraph (2), item (i) and paragraph (3), Article 131, paragraph (1), the table in Article 149 and Article 205-4, paragraph (1) of the Health Insurance Act; the provisions, in Article 3, amending Article 47, paragraph (3), Article 53, paragraph (2), Article 63, Article 64, paragraphs (2) and (4), Article 76, paragraph (2), item (i) and paragraph (3), and Article 153-10, paragraph (1) of the Mariners Insurance Act; the provision, in Article 5, amending Article 4, paragraph (3) of the National Health Insurance Act (limited to the part replacing "paragraph (4)" with "paragraph (5)") and the provisions amending Article 9, paragraph (3), Article 36, paragraph (2), Article 53, Article 54, paragraphs (3) and (4), Article 54-3, Article 65, paragraph (3), Article 66-2, Article 75-3, Article 82, paragraph (14), item (i), Article 85-3, paragraph (1), Article 113-3, paragraph (1), Article 119, Article 119-2 and Article 121, paragraph (2) of that Act; the provisions, in Article 8, amending Article 54, paragraph (4), Article 59, paragraph (3), Article 64, Article 76, Article 77, paragraphs (3) and (4), Article 82, Article 155, paragraph (1), Article 165, Article 165-2, paragraph (1), and Article 167, paragraph (2), items (iii) and (iv) of the Act on Assurance of Medical Care for Elderly People; the provisions, in Article 10, amending Article 54, paragraph (2), Article 55-5, Article 56, paragraphs (3) and (4), and Article 57, paragraph (2), item (i) and paragraph (3) of the National Public Officers Mutual Aid Association Act; the provisions, in Article 11, amending Article 56, paragraph (2), Article 57-5, Article 58, paragraphs (3) and (4), and Article 59, paragraph (2), item (i) and paragraph (3) of the Local Public Officers, etc. Mutual Aid Association Act; the provisions of Article 17; the provisions of Articles 11, 17, 20, 25, 28 and 31 of the Supplementary Provisions; the provision, in Article 39 of the Supplementary Provisions, amending the entry for the National Health Insurance Act (Act No. 192 of 1958) in Appended Table 1 of the Local Autonomy Act (Act No. 67 of 1947) (limited to the part replacing "Article 53, paragraph (3)" with "Article 53, paragraph (4)" and "Article 54-3, paragraph (6)" with "Article 54-3, paragraph (7)") and the provision amending the entry for the Act on Assurance of Medical Care for Elderly People (Act No. 80 of 1982) in that table (limited to the part replacing "Article 76, paragraph (6)" with "Article 76, paragraph (7)" and "Article 82, paragraph (6)" with "Article 82, paragraph (7)"); and the provisions of Article 47 of the Supplementary Provisions: the date specified by Cabinet Order within a period not exceeding one year from the date of promulgation;
  <sup>machine translation, not official</sup>

  **五**  第五条中国民健康保険法第八条及び第二十一条の改正規定並びに附則第二十一条の規定　令和十年四月一日
  <sup>suppl-5081-31/art-1/par-1/item-5 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-5</sup>
  the provision, in Article 5, amending Article 8 and Article 21 of the National Health Insurance Act, and the provisions of Article 21 of the Supplementary Provisions: April 1, 2028;
  <sup>machine translation, not official</sup>

  **六**  第二条、第四条及び第六条の規定、第七条中地方税法第七百三条の四第一項第一号並びに第三項第一号イ及び第二号ニの改正規定、第八条中高齢者の医療の確保に関する法律の目次の改正規定、同法第百四条第一項及び第三項、第百十六条第二項第一号から第四号まで、第四章第四節第五款の款名、第百二十四条の二（見出しを含む。）、第百二十四条の三（見出しを含む。）、第百二十四条の四（見出しを含む。）、第百二十四条の五（見出しを含む。）、第百二十四条の六（見出しを含む。）、第百二十四条の七第一項、第百二十四条の八、第百二十四条の九、第百三十四条第二項、第百三十九条第一項第三号、第百四十二条、第百四十六条第三項並びに第百四十八条の改正規定並びに同法附則第十五条を削る改正規定、第十条の規定（第二号及び第四号に掲げる改正規定を除く。）、第十一条の規定（第二号及び第四号に掲げる改正規定を除く。）並びに第十二条、第十五条、第十六条及び第十八条の規定並びに附則第十三条から第十五条まで、第十八条、第十九条、第二十二条、第二十三条、第二十六条、第二十九条、第三十条、第三十二条から第三十五条まで及び第三十七条の規定、附則第三十九条中地方自治法別表第一国民健康保険法（昭和三十三年法律第百九十二号）の項の改正規定（第四号に掲げる改正規定を除く。）、附則第四十一条中住民基本台帳法（昭和四十二年法律第八十一号）別表第一の七十二の三の項の改正規定並びに同法別表第二及び別表第四の改正規定、附則第四十二条、第四十三条及び第四十五条の規定、附則第四十八条中医療法等の一部を改正する法律（令和七年法律第八十七号）第六条の改正規定（「出産育児交付金」を「出産交付金」に改める部分に限る。）並びに同法第十条及び第十一条の改正規定並びに附則第四十九条の規定　公布の日から起算して二年を超えない範囲内において政令で定める日
  <sup>suppl-5081-31/art-1/par-1/item-6 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-6</sup>
  the provisions of Articles 2, 4 and 6; the provision, in Article 7, amending Article 703-4, paragraph (1), item (i), and paragraph (3), item (i), (a) and item (ii), (d) of the Local Tax Act; the provision, in Article 8, amending the table of contents of the Act on Assurance of Medical Care for Elderly People, the provisions amending Article 104, paragraphs (1) and (3), Article 116, paragraph (2), items (i) through (iv), the title of Subsection 5 of Section 4 of Chapter IV, Article 124-2 (including its heading), Article 124-3 (including its heading), Article 124-4 (including its heading), Article 124-5 (including its heading), Article 124-6 (including its heading), Article 124-7, paragraph (1), Article 124-8, Article 124-9, Article 134, paragraph (2), Article 139, paragraph (1), item (iii), Article 142, Article 146, paragraph (3) and Article 148 of that Act, and the provision deleting Article 15 of the Supplementary Provisions of that Act; the provisions of Article 10 (excluding the amending provisions set forth in item (ii) and item (iv)); the provisions of Article 11 (excluding the amending provisions set forth in item (ii) and item (iv)); the provisions of Articles 12, 15, 16 and 18; the provisions of Articles 13 through 15, 18, 19, 22, 23, 26, 29, 30, 32 through 35 and 37 of the Supplementary Provisions; the provision, in Article 39 of the Supplementary Provisions, amending the entry for the National Health Insurance Act (Act No. 192 of 1958) in Appended Table 1 of the Local Autonomy Act (excluding the amending provision set forth in item (iv)); the provision, in Article 41 of the Supplementary Provisions, amending row 72-3 of Appended Table 1 of the Residential Basic Book Act (Act No. 81 of 1967) and the provisions amending Appended Tables 2 and 4 of that Act; the provisions of Articles 42, 43 and 45 of the Supplementary Provisions; the provision, in Article 48 of the Supplementary Provisions, amending Article 6 of the Act Partially Amending the Medical Care Act, etc. (Act No. 87 of 2025) (limited to the part replacing "childbirth and childcare grant" with "childbirth grant") and the provisions amending Articles 10 and 11 of that Act; and the provisions of Article 49 of the Supplementary Provisions: the date specified by Cabinet Order within a period not exceeding two years from the date of promulgation.
  <sup>machine translation, not official</sup>

### 第二条（検討） — Review
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-31/art-2 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-2</sup>

**第一項**  政府は、この法律の公布後において、持続可能な医療保険制度を実現する観点から、社会経済情勢の変化及び社会の要請に対応し、必要な保険給付等の適切な実施並びに世代間及び世代内の負担の公平性の確保を図るための更なる改革について速やかに検討を加え、その結果に基づいて所要の措置を講ずるものとする。
<sup>suppl-5081-31/art-2/par-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-2/par-1</sup>
After the promulgation of this Act, from the viewpoint of realizing a sustainable medical insurance system, the government is to promptly examine further reforms to ensure the appropriate implementation of necessary insurance benefits, etc. and fairness of burdens between and within generations, in response to changes in the socioeconomic situation and the needs of Society, and take required measures based on the results.
<sup>machine translation, not official</sup>

**第三項**  前項に定める事項のほか、政府は、この法律の施行後五年を目途として、この法律による改正後のそれぞれの法律（以下この項において「改正後の各法律」という。）の施行の状況等を勘案し、必要があると認めるときは、改正後の各法律の規定について検討を加え、その結果に基づいて所要の措置を講ずるものとする。
<sup>suppl-5081-31/art-2/par-3 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-2/par-3</sup>
In addition to the matters specified in the preceding paragraph, the government is to, with a target of five years after the enforcement of this Act, taking into account the conditions of enforcement, etc. of the respective Acts as amended by this Act (referred to as "the respective Acts as amended" in this paragraph), examine the provisions of the respective Acts as amended where it finds it necessary, and take required measures based on the results.
<sup>machine translation, not official</sup>

### 第六条（国民健康保険法の一部改正に伴う準備行為） — Preparatory Acts Accompanying Partial Amendment of the National Health Insurance Act
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-31/art-6 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-6</sup>

**第一項**  国民健康保険団体連合会は、第六号施行日前においても、第六号新国民健康保険法第八十五条の三第一項に規定する分娩費の請求に関する審査及び支払並びに出産時一時金の支払に関する業務の実施に必要な準備行為をすることができる。
<sup>suppl-5081-31/art-6/par-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-6/par-1</sup>
A Federation of National Health Insurance Associations may, even before the item (vi) Effective Date, take preparatory actions necessary for carrying out operations relating to the examination of and payment for claims for delivery expenses prescribed in Article 85-3, paragraph (1) of the item (vi) new National Health Insurance Act, and to the payment of lump-sum allowance at childbirth.
<sup>machine translation, not official</sup>

### 第七条
<sup>suppl-5081-31/art-7 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-7</sup>

**第一項**  市町村（特別区を含む。附則第二十一条において同じ。）又は国民健康保険組合は、第六号新国民健康保険法（これに基づく命令を含む。）の施行のために必要な条例又は規約の制定又は改正その他の行為については、第六号施行日前においても行うことができる。
<sup>suppl-5081-31/art-7/par-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-7/par-1</sup>
A Municipality (including special wards; the same applies in Article 21 of the Supplementary Provisions) or National Health Insurance Society may, even before the item (vi) Effective Date, enact or revise a Municipal Ordinance or constitution and take other actions necessary for the enforcement of the item (vi) new National Health Insurance Act (including orders based thereon).
<sup>machine translation, not official</sup>

### 第二十条（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-5081-31/art-20 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-20</sup>

**第一項**  第四号施行日前に行われた療養（薬剤の支給については、第四号施行日前に医師又は歯科医師から処方箋の交付を受けたものを含む。）に係る第五条の規定（附則第一条第四号に掲げる改正規定に限る。）による改正前の国民健康保険法の規定による保険給付については、なお従前の例による。
<sup>suppl-5081-31/art-20/par-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-20/par-1</sup>
With regard to insurance benefits under the provisions of the National Health Insurance Act before its amendment by the provisions of Article 5 (limited to the amending provisions set forth in Article 1, item (iv) of the Supplementary Provisions) pertaining to medical treatment provided before the item (iv) Effective Date (including, with regard to the provision of medication, medication for which a prescription was issued by a physician or dentist before the item (iv) Effective Date), the provisions then in force continue to govern.
<sup>machine translation, not official</sup>

### 第二十一条
<sup>suppl-5081-31/art-21 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-21</sup>

**第一項**  第五条の規定（附則第一条第五号に掲げる改正規定に限る。）による改正後の国民健康保険法第八条及び第二十一条の規定は、都道府県が当該都道府県内の市町村とともに行う国民健康保険又は国民健康保険組合が行う国民健康保険の被保険者が国民健康保険法第六条第一号から第八号までのいずれかに該当するに至った日（以下この条において「資格喪失に係る事由が生じた日」という。）が附則第一条第五号に掲げる規定の施行の日（以下この条において「第五号施行日」という。）以後である場合について適用し、資格喪失に係る事由が生じた日が第五号施行日前である場合については、なお従前の例による。
<sup>suppl-5081-31/art-21/par-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-21/par-1</sup>
The provisions of Articles 8 and 21 of the National Health Insurance Act as revised by the provisions of Article 5 (limited to the amending provisions set forth in Article 1, item (v) of the Supplementary Provisions) apply where the day on which an insured person under the national health insurance program provided by a prefecture together with the municipalities within that prefecture, or under the national health insurance program provided by a National Health Insurance Society, has come to fall under any of items (i) through (viii) of Article 6 of the National Health Insurance Act (hereinafter in this Article referred to as the "day on which the cause for loss of eligibility arises") is on or after the date of enforcement of the provisions set forth in Article 1, item (v) of the Supplementary Provisions (hereinafter in this Article referred to as the "item (v) Effective Date"), and the provisions then in force continue to govern where the day on which the cause for loss of eligibility arises is before the item (v) Effective Date.
<sup>machine translation, not official</sup>

### 第三十八条（政令への委任） — Delegation to Cabinet Order
<sup>caption: machine translation, not official</sup>
<sup>suppl-5081-31/art-38 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-38</sup>

**第一項**  附則第三条から前条まで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（罰則に関する経過措置を含む。）は、政令で定める。
<sup>suppl-5081-31/art-38/par-1 · https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-38/par-1</sup>
Beyond what is provided from Article 3 of the Supplementary Provisions to the preceding Article, any transitional measures (including those concerning penal provisions) necessary for the enforcement of this Act are provided by Cabinet Order.
<sup>machine translation, not official</sup>

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## Cites
- suppl-5081-31/art-1/par-1/item-1: 次条から附則第十条まで → 国民健康保険法 附則第二条 (Supplementary Provisions, Article 2), suppl-5081-31/art-2 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-2
- suppl-5081-31/art-1/par-1/item-1: 第三十八条 → 国民健康保険法 附則第三十八条 (Supplementary Provisions, Article 38), suppl-5081-31/art-38 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-38
- suppl-5081-31/art-1/par-1/item-4: 第二十条 → 国民健康保険法 附則第二十条 (Supplementary Provisions, Article 20), suppl-5081-31/art-20 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-20
- suppl-5081-31/art-1/par-1/item-5: 附則第二十一条 → 国民健康保険法 附則第二十一条 (Supplementary Provisions, Article 21), suppl-5081-31/art-21 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-21
- suppl-5081-31/art-1/par-1/item-6: 第二号 → 国民健康保険法 附則第一条第一項第二号 (Supplementary Provisions, Article 1, paragraph (1), item (ii)), suppl-5081-31/art-1/par-1/item-2 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-2
- suppl-5081-31/art-1/par-1/item-6: 第四号 → 国民健康保険法 附則第一条第一項第四号 (Supplementary Provisions, Article 1, paragraph (1), item (iv)), suppl-5081-31/art-1/par-1/item-4 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-4
- suppl-5081-31/art-2/par-3: この項 → 国民健康保険法 附則第二条第三項 (Supplementary Provisions, Article 2, paragraph (3)), suppl-5081-31/art-2/par-3 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-2/par-3
- suppl-5081-31/art-7/par-1: 附則第二十一条 → 国民健康保険法 附則第二十一条 (Supplementary Provisions, Article 21), suppl-5081-31/art-21 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-21
- suppl-5081-31/art-20/par-1: 附則第一条第四号 → 国民健康保険法 附則第一条第一項第四号 (Supplementary Provisions, Article 1, paragraph (1), item (iv)), suppl-5081-31/art-1/par-1/item-4 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-4
- suppl-5081-31/art-21/par-1: 附則第一条第五号 → 国民健康保険法 附則第一条第一項第五号 (Supplementary Provisions, Article 1, paragraph (1), item (v)), suppl-5081-31/art-1/par-1/item-5 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-1/par-1/item-5
- suppl-5081-31/art-21/par-1: 国民健康保険法第八条 → 国民健康保険法 第八条 (Article 8), art-8 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-8
- suppl-5081-31/art-21/par-1: 第二十一条 → 国民健康保険法 第二十一条 (Article 21), art-21 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-3/from-art-13#art-21
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第一号 (Article 6, paragraph (1), item (i)), art-6/par-1/item-1 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-1
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第二号 (Article 6, paragraph (1), item (ii)), art-6/par-1/item-2 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-2
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第三号 (Article 6, paragraph (1), item (iii)), art-6/par-1/item-3 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-3
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第四号 (Article 6, paragraph (1), item (iv)), art-6/par-1/item-4 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-4
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第五号 (Article 6, paragraph (1), item (v)), art-6/par-1/item-5 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-5
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第六号 (Article 6, paragraph (1), item (vi)), art-6/par-1/item-6 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-6
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第七号 (Article 6, paragraph (1), item (vii)), art-6/par-1/item-7 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-7
- suppl-5081-31/art-21/par-1: 国民健康保険法第六条第一号から第八号まで → 国民健康保険法 第六条第一項第八号 (Article 6, paragraph (1), item (viii)), art-6/par-1/item-8 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/ch-2#art-6/par-1/item-8
- suppl-5081-31/art-21/par-1: この条 → 国民健康保険法 附則第二十一条 (Supplementary Provisions, Article 21), suppl-5081-31/art-21 — https://japanlaw.org/en/national-health-insurance-act/amendments/20280401_508AC0000000031/text/suppl-5081-31#suppl-5081-31/art-21

---

## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 国民健康保険法 — the text as 令和八年法律第三十一号 leaves it, from 2028-04-01 (https://laws.e-gov.go.jp/law/333AC0000000192/20280401_508AC0000000031), 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-20261017T183826-042, translated 2026-10-18
- claude-sonnet-5-5 — Machine translation, batch national-health-insurance-act-20261017T183826-043, translated 2026-10-18
- claude-sonnet-5-5 — Machine translation of amended wording, batch national-health-insurance-act-amendments-20261017T183826-001, translated 2026-10-18
- claude-sonnet-5-5 — Machine translation of amended wording, batch national-health-insurance-act-amendments-20261017T183826-002, 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