# 健康保険法施行令 / Order for Enforcement of the Health Insurance Act — 附　則 (Supplementary Provisions)

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- Law: 健康保険法施行令 (Order for Enforcement of the Health Insurance Act), 大正十五年勅令第二百四十三号
- English title "Order for Enforcement of the Health Insurance Act": claude-opus-5-5
- Kind: ImperialOrder — 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-4212-63`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63
- e-Gov law ID: 215IO0000000243 — never renamed. A permanent link, `/l/{lawId}/{address}` on this site, redirects to the page.
- Every provision below carries its address and its URL 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.

---

## 附　則 平成二一年三月二七日政令第六三号
<sup>suppl-4212-63 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63</sup>

### 第一条（施行期日） — Effective Date
<sup>caption: machine translation, not official</sup>
<sup>suppl-4212-63/art-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-1</sup>

**第一項**  この政令は、公布の日から施行する。
<sup>suppl-4212-63/art-1/par-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-1/par-1</sup>
This Cabinet Order comes into effect on the date of promulgation.
<sup>machine translation, not official</sup>

### 第二条（定義） — Definitions
<sup>caption: machine translation, not official</sup>
<sup>suppl-4212-63/art-2 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2</sup>

**第一項**  この附則において、次の各号に掲げる用語の意義は、当該各号に定めるところによる。
<sup>suppl-4212-63/art-2/par-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1</sup>
In these Supplementary Provisions, the meanings of the terms listed in the following items are as prescribed respectively in those items.
<sup>machine translation, not official</sup>

  **一**  平成十八年健保法等改正法　健康保険法等の一部を改正する法律（平成十八年法律第八十三号）をいう。
  <sup>suppl-4212-63/art-2/par-1/item-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-1</sup>
  "2006 Health Insurance Act, etc. Amendment Act" means the Act Partially Amending the Health Insurance Act, etc. (Act No. 83 of 2006);
  <sup>machine translation, not official</sup>

  **二**  新健保令　この政令による改正後の健康保険法施行令をいう。
  <sup>suppl-4212-63/art-2/par-1/item-2 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-2</sup>
  "New Health Insurance Order" means the Order for Enforcement of the Health Insurance Act as amended by this Cabinet Order;
  <sup>machine translation, not official</sup>

  **三**  協会　全国健康保険協会をいう。
  <sup>suppl-4212-63/art-2/par-1/item-3 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-3</sup>
  "JHIA" means the Japan Health Insurance Association;
  <sup>machine translation, not official</sup>

  **四**  支部被保険者　健康保険法第百六十条第一項に規定する支部被保険者をいう。
  <sup>suppl-4212-63/art-2/par-1/item-4 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-4</sup>
  "single branch-insured person" means the single branch-insured person prescribed in Article 160, paragraph (1) of the Health Insurance Act;
  <sup>machine translation, not official</sup>

  **五**  都道府県単位保険料率　健康保険法第百六十条第二項に規定する都道府県単位保険料率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-5 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-5</sup>
  "premium rate for each prefecture" means the premium rate for each prefecture prescribed in Article 160, paragraph (2) of the Health Insurance Act;
  <sup>machine translation, not official</sup>

  **六**  経過措置期間適用月　都道府県単位保険料率の変更の場合における当該変更後の都道府県単位保険料率（平成三十二年三月以前に用いられるものに限る。）を用いる最初の月をいう。
  <sup>suppl-4212-63/art-2/par-1/item-6 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-6</sup>
  "transitional month of application" means in the case where the premium rate for each prefecture is changed, the first month in which the premium rate for each prefecture after the change (limited to that used on or before March 2020) is used;
  <sup>machine translation, not official</sup>

  **七**  平均保険料率　一の事業年度における新健保令第四十五条の二第一号に掲げる額の総額の見込額を同号に掲げる額と、当該一の事業年度における同条第二号に掲げる額の総額の見込額を同号に掲げる額とみなして、同条（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定の例により厚生労働省令で定めるところにより算定した率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-7 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-7</sup>
  "average premium rate" means the rate calculated, as specified by Order of the Ministry of Health, Labour and Welfare, in the same manner as under the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March), by deeming the estimated amount of the total sum of the amounts listed in Article 45-2, item (i) of the New Health Insurance Order in a business year to be the amount listed in that item, and the estimated amount of the total sum of the amounts listed in item (ii) of that Article in that business year to be the amount listed in that item;
  <sup>machine translation, not official</sup>

  **八**  最高都道府県単位保険料率　一の事業年度において新健保令第四十五条の二（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定に基づき算定した都道府県単位保険料率のうち最も高い率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-8 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-8</sup>
  "highest premium rate for each prefecture" means the highest of the premium rates for each prefecture calculated, in a business year, pursuant to the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March);
  <sup>machine translation, not official</sup>

  **九**  平成二十一年度経過措置基準率　平成二十一年度における最高都道府県単位保険料率から同年度における平均保険料率を控除した率を十で除して得た率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-9 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-9</sup>
  "fiscal 2009 transitional base rate" means the rate obtained by dividing by 10 the rate obtained by deducting the average premium rate in that fiscal year from the highest premium rate for each prefecture in fiscal 2009;
  <sup>machine translation, not official</sup>

  **十**  第一号平均保険料率　一の事業年度における新健保令第四十五条の二第一号イに掲げる額の総額の見込額を同号に掲げる額と、当該一の事業年度における同条第二号に掲げる額の総額の見込額を同号に掲げる額とみなして、同条（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定の例により厚生労働省令で定めるところにより算定した率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-10 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-10</sup>
  "item (i) average premium rate" means the rate calculated, as specified by Order of the Ministry of Health, Labour and Welfare, in the same manner as under the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March), by deeming the estimated amount of the total sum of the amounts listed in Article 45-2, item (i), (a) of the New Health Insurance Order in a business year to be the amount listed in item (i) of that Article, and the estimated amount of the total sum of the amounts listed in item (ii) of that Article in that business year to be the amount listed in that item;
  <sup>machine translation, not official</sup>

  **十一**  第一号都道府県単位保険料率　一の事業年度における新健保令第四十五条の二第一号イに掲げる額を同号に掲げる額とみなして、同条（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定の例により厚生労働省令で定めるところにより算定した率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-11 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-11</sup>
  "item (i) premium rate for each prefecture" means the rate calculated, as specified by Order of the Ministry of Health, Labour and Welfare, in the same manner as under the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March), by deeming the amount listed in Article 45-2, item (i), (a) of the New Health Insurance Order in a business year to be the amount listed in item (i) of that Article;
  <sup>machine translation, not official</sup>

  **十二**  最高第一号都道府県単位保険料率　一の事業年度において新健保令第四十五条の二（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定の例により算定した第一号都道府県単位保険料率のうち最も高い率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-12 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-12</sup>
  "highest item (i) premium rate for each prefecture" means the highest of the item (i) premium rates for each prefecture calculated, in a business year, in the same manner as under the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March);
  <sup>machine translation, not official</sup>

  **十三**  第二号都道府県単位保険料率　一の事業年度における新健保令第四十五条の二第一号ロに掲げる額を同号に掲げる額とみなして、同条（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定の例により厚生労働省令で定めるところにより算定した率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-13 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-13</sup>
  "item (ii) premium rate for each prefecture" means the rate calculated, as specified by Order of the Ministry of Health, Labour and Welfare, in the same manner as under the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March), by deeming the amount listed in Article 45-2, item (i), (b) of the New Health Insurance Order in a business year to be the amount listed in item (i) of that Article;
  <sup>machine translation, not official</sup>

  **十四**  第三号都道府県単位保険料率　一の事業年度における新健保令第四十五条の二第一号ハに掲げる額を同号に掲げる額とみなして、同条（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定の例により厚生労働省令で定めるところにより算定した率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-14 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-14</sup>
  "item (iii) premium rate for each prefecture" means the rate calculated, as specified by Order of the Ministry of Health, Labour and Welfare, in the same manner as under the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March), by deeming the amount listed in Article 45-2, item (i), (c) of the New Health Insurance Order in a business year to be the amount listed in item (i) of that Article;
  <sup>machine translation, not official</sup>

  **十五**  収入等見込額相当率　一の事業年度において取り崩すことが見込まれる準備金の額その他健康保険事業に要する費用のための収入の見込額のうち当該支部被保険者を単位とする健康保険の当該一の事業年度の財政においてその収入とみなすべき額として協会が定める額を新健保令第四十五条の二第一号に掲げる額とみなして、同条（経過措置期間適用月が三月以外の月の場合にあっては、新健保令第四十五条の三）の規定の例により厚生労働省令で定めるところにより算定した率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-15 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-15</sup>
  "rate equivalent to estimated revenue, etc." means the rate calculated, as specified by Order of the Ministry of Health, Labour and Welfare, in the same manner as under the provisions of Article 45-2 of the New Health Insurance Order (Article 45-3 of the New Health Insurance Order, where the transitional month of application is a month other than March), by deeming the amount specified by JHIA as the amount to be deemed revenue in the finances of that business year of health insurance on the basis of the branch-insured person concerned, out of the estimated amount of the reserves expected to be drawn down in a business year and other revenue for expenses required for health insurance business, to be the amount listed in Article 45-2, item (i) of the New Health Insurance Order;
  <sup>machine translation, not official</sup>

  **十六**  平成二十一年度調整基礎率　平成二十一年度における最高第一号都道府県単位保険料率から同年度における第一号平均保険料率を控除した率を十で除して得た率をいう。
  <sup>suppl-4212-63/art-2/par-1/item-16 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-16</sup>
  "fiscal 2009 adjustment base rate" means the rate obtained by dividing by 10 the rate obtained by deducting the item (i) average premium rate in that fiscal year from the highest item (i) premium rate for each prefecture in fiscal 2009.
  <sup>machine translation, not official</sup>

### 第三条
<sup>suppl-4212-63/art-3 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-3</sup>

**第一項**  平成二十五年度及び平成二十六年度においては、前条第十五号中「一の事業年度において取り崩すことが見込まれる準備金の額その他健康保険事業」とあるのは、「健康保険事業」とする。
<sup>suppl-4212-63/art-3/par-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-3/par-1</sup>
In fiscal 2013 and fiscal 2014, the phrase "the reserves expected to be drawn down in a business year and other revenue for expenses required for health insurance business" in item (xv) of the preceding Article is deemed to be replaced with "revenue for expenses required for health insurance business".
<sup>machine translation, not official</sup>

### 第四条（都道府県単位保険料率に係る経過措置の期限） — Time Limit for Transitional Measures Concerning Premium Rate for Each Prefecture
<sup>caption: machine translation, not official</sup>
<sup>suppl-4212-63/art-4 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-4</sup>

**第一項**  平成十八年健保法等改正法附則第三十一条の政令で定める日は、平成三十二年三月三十一日とする。
<sup>suppl-4212-63/art-4/par-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-4/par-1</sup>
The date specified by Cabinet Order as referred to in Article 31 of the Supplementary Provisions of the 2006 Health Insurance Act, etc. Amendment Act is March 31, 2020.
<sup>machine translation, not official</sup>

### 第五条（都道府県単位保険料率の変更の場合における調整） — Adjustment in Case of Change in Premium Rate for Each Prefecture
<sup>caption: machine translation, not official</sup>
<sup>suppl-4212-63/art-5 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-5</sup>

**第一項**  都道府県単位保険料率の変更の場合における当該都道府県単位保険料率の算定についての平成十八年健保法等改正法附則第三十一条の政令で定める基準は、経過措置期間適用月の属する事業年度（経過措置期間適用月が三月の場合にあっては、当該三月の属する事業年度の翌事業年度。以下この項及び次条第一項において同じ。）における平均保険料率に、当該経過措置期間適用月の属する事業年度における次条の規定による調整前の都道府県単位保険料率の分布状況及び当該経過措置期間適用月から平成三十二年三月までの期間を勘案して、平成二十一年度経過措置基準率と当該経過措置期間適用月の属する事業年度における最高都道府県単位保険料率から当該経過措置期間適用月の属する事業年度における平均保険料率を控除した率との差の範囲内において、厚生労働大臣が定める平成二十二年度以降経過措置基準率を加えた率と千分の八十二との率の差とする。
<sup>suppl-4212-63/art-5/par-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-5/par-1</sup>
In the case where a premium rate for each prefecture is changed, the criterion specified by Cabinet Order as referred to in Article 31 of the Supplementary Provisions of the 2006 Health Insurance Act, etc. Amendment Act for the calculation of that premium rate for each prefecture is the difference between the rate obtained by adding, to the average premium rate in the business year to which the transitional month of application belongs (where the transitional month of application is March, the business year following the business year to which that March belongs; the same applies hereinafter in this paragraph and paragraph (1) of the following Article), the transitional base rate for fiscal 2010 and thereafter, which the Minister of Health, Labour and Welfare specifies, taking into account the distribution of the premium rates for each prefecture before adjustment under the provisions of the following Article in the business year to which that transitional month of application belongs and the period from that transitional month of application through March 2020, within the range of the difference between the fiscal 2009 transitional base rate and the rate obtained by deducting the average premium rate in the business year to which that transitional month of application belongs from the highest premium rate for each prefecture in the business year to which that transitional month of application belongs, and 82/1,000.
<sup>machine translation, not official</sup>

**第二項**  前項の平成二十二年度以降経過措置基準率は、平成二十二年度から平成三十一年度までの各事業年度ごとに適用されるべき率として、それぞれ当該各事業年度の前事業年度末までに、当該各事業年度の前事業年度に適用されるべきものとして定めた同項の平成二十二年度以降経過措置基準率以上の率として定めるものとする。ただし、平成二十二年度に適用されるべき同項の平成二十二年度以降経過措置基準率は、平成二十一年度経過措置基準率以上の率とする。
<sup>suppl-4212-63/art-5/par-2 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-5/par-2</sup>
The transitional base rate for fiscal 2010 and thereafter referred to in the preceding paragraph is to be set, as the rate to be applied for each business year from fiscal 2010 through fiscal 2019, by the end of the business year preceding each such business year, as a rate that is equal to or more than the transitional base rate for fiscal 2010 and thereafter referred to in that paragraph that was set as that to be applied in the business year preceding each such business year; provided, however, that the transitional base rate for fiscal 2010 and thereafter referred to in that paragraph that is to be applied in fiscal 2010 is a rate that is equal to or more than the fiscal 2009 transitional base rate.
<sup>machine translation, not official</sup>

### 第六条
<sup>suppl-4212-63/art-6 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6</sup>

**第一項**  都道府県単位保険料率の変更の場合における当該都道府県単位保険料率の算定についての平成十八年健保法等改正法附則第三十一条の規定に基づく調整は、次の各号に掲げる都道府県単位保険料率の区分に応じ、当該各号に定めるところにより行うものとする。
<sup>suppl-4212-63/art-6/par-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1</sup>
The adjustment under Article 31 of the Supplementary Provisions of the 2006 Health Insurance Act, etc. Amendment Act for the calculation of a premium rate for each prefecture in the case where that premium rate for each prefecture is changed is to be carried out, in accordance with the category of premium rates for each prefecture listed in the following items, as specified in those items.
<sup>machine translation, not official</sup>

  **一**  経過措置期間適用月の属する事業年度における第一号都道府県単位保険料率が当該経過措置期間適用月の属する事業年度における第一号平均保険料率以上である場合　厚生労働省令で定めるところにより、イからニまでに掲げる率を合算した率からホに掲げる率を控除した率を当該都道府県単位保険料率とすること。
  <sup>suppl-4212-63/art-6/par-1/item-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1</sup>
  in the case where the item (i) premium rate for each prefecture in the business year to which the transitional month of application belongs is equal to or more than the item (i) average premium rate in the business year to which the transitional month of application belongs: to make the rate obtained by deducting the rate listed in (e) from the rate obtained by adding together the rates listed in (a) through (d) the premium rate for each prefecture, as specified by Order of the Ministry of Health, Labour and Welfare;
  <sup>machine translation, not official</sup>

    **イ**  当該経過措置期間適用月の属する事業年度における第一号平均保険料率
    <sup>suppl-4212-63/art-6/par-1/item-1/sub-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1/sub-1</sup>
    the item (i) average premium rate in the business year to which that transitional month of application belongs;
    <sup>machine translation, not official</sup>

    **ロ**  当該経過措置期間適用月の属する事業年度における第一号都道府県単位保険料率から当該経過措置期間適用月の属する事業年度における第一号平均保険料率を控除した率に、当該経過措置期間適用月の属する事業年度におけるこの条の規定による調整前の都道府県単位保険料率の分布状況及び当該経過措置期間適用月から平成三十二年三月までの期間を勘案して、平成二十一年度調整基礎率と当該経過措置期間適用月の属する事業年度における最高第一号都道府県単位保険料率から当該第一号平均保険料率を控除した率との差の範囲内において、厚生労働大臣が定める平成二十二年度以降調整基礎率を当該最高第一号都道府県単位保険料率から当該第一号平均保険料率を控除した率で除して得た率を乗じて得た率
    <sup>suppl-4212-63/art-6/par-1/item-1/sub-2 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1/sub-2</sup>
    the rate obtained by multiplying the rate obtained by deducting the item (i) average premium rate in the business year to which that transitional month of application belongs from the item (i) premium rate for each prefecture in the business year to which that transitional month of application belongs, by the rate obtained by dividing the adjustment base rate for fiscal 2010 and thereafter, which the Minister of Health, Labour and Welfare specifies, taking into account the distribution of the premium rates for each prefecture before adjustment under the provisions of this Article in the business year to which that transitional month of application belongs and the period from that transitional month of application through March 2020, within the range of the difference between the fiscal 2009 adjustment base rate and the rate obtained by deducting that item (i) average premium rate from the highest item (i) premium rate for each prefecture in the business year to which that transitional month of application belongs, by the rate obtained by deducting that item (i) average premium rate from that highest item (i) premium rate for each prefecture;
    <sup>machine translation, not official</sup>

    **ハ**  当該経過措置期間適用月の属する事業年度における第二号都道府県単位保険料率
    <sup>suppl-4212-63/art-6/par-1/item-1/sub-3 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1/sub-3</sup>
    the item (ii) premium rate for each prefecture in the business year to which that transitional month of application belongs;
    <sup>machine translation, not official</sup>

    **ニ**  当該経過措置期間適用月の属する事業年度における第三号都道府県単位保険料率
    <sup>suppl-4212-63/art-6/par-1/item-1/sub-4 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1/sub-4</sup>
    the item (iii) premium rate for each prefecture in the business year to which that transitional month of application belongs; and
    <sup>machine translation, not official</sup>

    **ホ**  当該経過措置期間適用月の属する事業年度における収入等見込額相当率
    <sup>suppl-4212-63/art-6/par-1/item-1/sub-5 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1/sub-5</sup>
    the rate equivalent to estimated revenue, etc. in the business year to which that transitional month of application belongs;
    <sup>machine translation, not official</sup>

  **二**  経過措置期間適用月の属する事業年度における第一号都道府県単位保険料率が当該経過措置期間適用月の属する事業年度における第一号平均保険料率未満である場合　厚生労働省令で定めるところにより、イに掲げる率からロに掲げる率を控除した率にハ及びニに掲げる率を合算した率を加えた率からホに掲げる率を控除した率を当該都道府県単位保険料率とすること。
  <sup>suppl-4212-63/art-6/par-1/item-2 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-2</sup>
  in the case where the item (i) premium rate for each prefecture in the business year to which the transitional month of application belongs is less than the item (i) average premium rate in the business year to which the transitional month of application belongs: to make the rate obtained by deducting the rate listed in (e) from the rate obtained by adding, to the rate obtained by deducting the rate listed in (b) from the rate listed in (a), the rate obtained by adding together the rates listed in (c) and (d) the premium rate for each prefecture, as specified by Order of the Ministry of Health, Labour and Welfare.
  <sup>machine translation, not official</sup>

    **イ**  当該経過措置期間適用月の属する事業年度における第一号平均保険料率
    <sup>suppl-4212-63/art-6/par-1/item-2/sub-1 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-2/sub-1</sup>
    the item (i) average premium rate in the business year to which that transitional month of application belongs;
    <sup>machine translation, not official</sup>

    **ロ**  当該経過措置期間適用月の属する事業年度における第一号平均保険料率から当該経過措置期間適用月の属する事業年度における第一号都道府県単位保険料率を控除した率に、前号ロの平成二十二年度以降調整基礎率を当該経過措置期間適用月の属する事業年度における最高第一号都道府県単位保険料率から当該第一号平均保険料率を控除した率で除して得た率を乗じて得た率
    <sup>suppl-4212-63/art-6/par-1/item-2/sub-2 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-2/sub-2</sup>
    the rate obtained by multiplying the rate obtained by deducting the item (i) premium rate for each prefecture in the business year to which that transitional month of application belongs from the item (i) average premium rate in the business year to which that transitional month of application belongs, by the rate obtained by dividing the adjustment base rate for fiscal 2010 and thereafter referred to in (b) of the preceding item by the rate obtained by deducting that item (i) average premium rate from the highest item (i) premium rate for each prefecture in the business year to which that transitional month of application belongs;
    <sup>machine translation, not official</sup>

    **ハ**  当該経過措置期間適用月の属する事業年度における第二号都道府県単位保険料率
    <sup>suppl-4212-63/art-6/par-1/item-2/sub-3 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-2/sub-3</sup>
    the item (ii) premium rate for each prefecture in the business year to which that transitional month of application belongs;
    <sup>machine translation, not official</sup>

    **ニ**  当該経過措置期間適用月の属する事業年度における第三号都道府県単位保険料率
    <sup>suppl-4212-63/art-6/par-1/item-2/sub-4 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-2/sub-4</sup>
    the item (iii) premium rate for each prefecture in the business year to which that transitional month of application belongs; and
    <sup>machine translation, not official</sup>

    **ホ**  当該経過措置期間適用月の属する事業年度における収入等見込額相当率
    <sup>suppl-4212-63/art-6/par-1/item-2/sub-5 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-2/sub-5</sup>
    the rate equivalent to estimated revenue, etc. in the business year to which that transitional month of application belongs.
    <sup>machine translation, not official</sup>

**第二項**  前項第一号ロの平成二十二年度以降調整基礎率は、平成二十二年度から平成三十一年度までの各事業年度ごとに適用されるべき率として、それぞれ当該各事業年度の前事業年度末までに、当該各事業年度の前事業年度に適用されるべきものとして定めた同号ロの平成二十二年度以降調整基礎率以上の率として定めるものとする。ただし、平成二十二年度に適用されるべき同号ロの平成二十二年度以降調整基礎率は、平成二十一年度調整基礎率以上の率とする。
<sup>suppl-4212-63/art-6/par-2 · https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-2</sup>
The adjustment base rate for fiscal 2010 and thereafter referred to in (b) of item (i) of the preceding paragraph is to be set, as the rate to be applied for each business year from fiscal 2010 through fiscal 2019, by the end of the business year preceding each such business year, as a rate that is equal to or more than the adjustment base rate for fiscal 2010 and thereafter referred to in (b) of that item that was set as that to be applied in the business year preceding each such business year; provided, however, that the adjustment base rate for fiscal 2010 and thereafter referred to in (b) of that item that is to be applied in fiscal 2010 is a rate that is equal to or more than the fiscal 2009 adjustment base rate.
<sup>machine translation, not official</sup>

---

## Cites
- suppl-4212-63/art-2/par-1/item-4: 健康保険法第百六十条第一項 → 健康保険法 第百六十条第一項 (Article 160, paragraph (1)), art-160/par-1 — https://japanlaw.org/ja/health-insurance-act/art-160/par-1 (e-Gov law ID 211AC0000000070)
- suppl-4212-63/art-2/par-1/item-5: 健康保険法第百六十条第二項 → 健康保険法 第百六十条第二項 (Article 160, paragraph (2)), art-160/par-2 — https://japanlaw.org/ja/health-insurance-act/art-160/par-2 (e-Gov law ID 211AC0000000070)
- suppl-4212-63/art-2/par-1/item-7: 新健保令第四十五条の二第一号 → 健康保険法施行令 第四十五条の二第一項第一号 (Article 45-2, paragraph (1), item (i)), art-45-2/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-1
- suppl-4212-63/art-2/par-1/item-7: 同条第二号 → 健康保険法施行令 第四十五条の二第一項第二号 (Article 45-2, paragraph (1), item (ii)), art-45-2/par-1/item-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-2
- suppl-4212-63/art-2/par-1/item-7: 同条 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-7: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-2/par-1/item-8: 新健保令第四十五条の二 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-8: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-2/par-1/item-10: 新健保令第四十五条の二第一号 → 健康保険法施行令 第四十五条の二第一項第一号 (Article 45-2, paragraph (1), item (i)), art-45-2/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-1
- suppl-4212-63/art-2/par-1/item-10: 同条第二号 → 健康保険法施行令 第四十五条の二第一項第二号 (Article 45-2, paragraph (1), item (ii)), art-45-2/par-1/item-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-2
- suppl-4212-63/art-2/par-1/item-10: 同条 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-10: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-2/par-1/item-11: 新健保令第四十五条の二第一号 → 健康保険法施行令 第四十五条の二第一項第一号 (Article 45-2, paragraph (1), item (i)), art-45-2/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-1
- suppl-4212-63/art-2/par-1/item-11: 同条 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-11: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-2/par-1/item-12: 新健保令第四十五条の二 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-12: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-2/par-1/item-13: 新健保令第四十五条の二第一号 → 健康保険法施行令 第四十五条の二第一項第一号 (Article 45-2, paragraph (1), item (i)), art-45-2/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-1
- suppl-4212-63/art-2/par-1/item-13: 同条 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-13: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-2/par-1/item-14: 新健保令第四十五条の二第一号 → 健康保険法施行令 第四十五条の二第一項第一号 (Article 45-2, paragraph (1), item (i)), art-45-2/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-1
- suppl-4212-63/art-2/par-1/item-14: 同条 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-14: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-2/par-1/item-15: 新健保令第四十五条の二第一号 → 健康保険法施行令 第四十五条の二第一項第一号 (Article 45-2, paragraph (1), item (i)), art-45-2/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2/par-1/item-1
- suppl-4212-63/art-2/par-1/item-15: 同条 → 健康保険法施行令 第四十五条の二 (Article 45-2), art-45-2 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-2
- suppl-4212-63/art-2/par-1/item-15: 新健保令第四十五条の三 → 健康保険法施行令 第四十五条の三 (Article 45-3), art-45-3 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/art-45-3
- suppl-4212-63/art-3/par-1: 前条第十五号 → 健康保険法施行令 附則第二条第一項第十五号 (Supplementary Provisions, Article 2, paragraph (1), item (xv)), suppl-4212-63/art-2/par-1/item-15 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-2/par-1/item-15
- suppl-4212-63/art-5/par-1: この項 → 健康保険法施行令 附則第五条第一項 (Supplementary Provisions, Article 5, paragraph (1)), suppl-4212-63/art-5/par-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-5/par-1
- suppl-4212-63/art-5/par-1: 次条第一項 → 健康保険法施行令 附則第六条第一項 (Supplementary Provisions, Article 6, paragraph (1)), suppl-4212-63/art-6/par-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1
- suppl-4212-63/art-5/par-1: 次条 → 健康保険法施行令 附則第六条 (Supplementary Provisions, Article 6), suppl-4212-63/art-6 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6
- suppl-4212-63/art-5/par-2: 前項 → 健康保険法施行令 附則第五条第一項 (Supplementary Provisions, Article 5, paragraph (1)), suppl-4212-63/art-5/par-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-5/par-1
- suppl-4212-63/art-6/par-1/item-1/sub-2: この条 → 健康保険法施行令 附則第六条 (Supplementary Provisions, Article 6), suppl-4212-63/art-6 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6
- suppl-4212-63/art-6/par-1/item-2/sub-2: 前号 → 健康保険法施行令 附則第六条第一項第一号 (Supplementary Provisions, Article 6, paragraph (1), item (i)), suppl-4212-63/art-6/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1
- suppl-4212-63/art-6/par-2: 前項第一号 → 健康保険法施行令 附則第六条第一項第一号 (Supplementary Provisions, Article 6, paragraph (1), item (i)), suppl-4212-63/art-6/par-1/item-1 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1

## Cited by

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

- 健康保険法施行令 附則第三条第一項 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-3/par-1
- 健康保険法施行令 附則第五条第一項（都道府県単位保険料率の変更の場合における調整） — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-5/par-1
- 健康保険法施行令 附則第五条第二項（都道府県単位保険料率の変更の場合における調整） — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-5/par-2
- 健康保険法施行令 附則第六条第一項第一号ロ — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-1/sub-2
- 健康保険法施行令 附則第六条第一項第二号ロ — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-1/item-2/sub-2
- 健康保険法施行令 附則第六条第二項 — https://japanlaw.org/ja/health-insurance-act-enforcement-order/suppl-4212-63/art-6/par-2

---

## Sources

- claude-opus-5-5 — English title of a law in this collection, written for this site, written 2026-11-06
- e-Gov 法令検索, Digital Agency (デジタル庁) — 健康保険法施行令 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/215IO0000000243/20261001_508CO0000000276), retrieved 2026-11-06
- claude-sonnet-5-5 — Machine translation, batch health-insurance-act-enforcement-order-20261106T164949-024, translated 2026-11-07
- claude-sonnet-5-5 — Machine translation, batch health-insurance-act-enforcement-order-20261106T164949-025, translated 2026-11-07
- claude-sonnet-5-5 — Machine translation, batch health-insurance-act-enforcement-order-20261106T164949-030, translated 2026-11-07
- claude-sonnet-5-5, corrected on review by claude-opus-5-5 — Machine translation corrected on review, batch health-insurance-act-enforcement-order-20261106T164949-030, translated 2026-11-07
- claude-sonnet-5-5 — Machine translation, batch health-insurance-act-enforcement-order-20261106T164949-031, translated 2026-11-07
- This site's parser, version 229 — 健康保険法施行令 — structure, counts, cross-references and defined terms, computed 2026-11-06
