# 健康保険法 / Health Insurance Act — 第九十九条 (Article 99) - 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: 第九十九条 (Article 99)（傷病手当金） — address `art-99` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/en/health-insurance-act/art-99 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/211AC0000000070/art-99 - 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. --- ### 第九十九条（傷病手当金） — (Injury and Sickness Allowance) caption: Ministry of Justice translation — Japanese Law Translation Database System art-99 · https://japanlaw.org/en/health-insurance-act/art-99 · https://japanlaw.org/l/211AC0000000070/art-99 **第一項** 被保険者（任意継続被保険者を除く。第百二条第一項において同じ。）が療養のため労務に服することができないときは、その労務に服することができなくなった日から起算して三日を経過した日から労務に服することができない期間、傷病手当金を支給する。 art-99/par-1 · https://japanlaw.org/en/health-insurance-act/art-99/par-1 · https://japanlaw.org/l/211AC0000000070/art-99/par-1 When an insured person (excluding an insured person with optional and continued coverage; the same applies in Article 102, paragraph (1)) is unable to engage in labor due to medical treatment, the injury and sickness allowance is paid for the period during which the person is unable to engage in work, starting from the day on which three days elapsed after the day on which the person becomes unable to engage in work. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 傷病手当金の額は、一日につき、傷病手当金の支給を始める日の属する月以前の直近の継続した十二月間の各月の標準報酬月額（被保険者が現に属する保険者等により定められたものに限る。以下この項において同じ。）を平均した額の三十分の一に相当する額（その額に、五円未満の端数があるときは、これを切り捨て、五円以上十円未満の端数があるときは、これを十円に切り上げるものとする。）の三分の二に相当する金額（その金額に、五十銭未満の端数があるときは、これを切り捨て、五十銭以上一円未満の端数があるときは、これを一円に切り上げるものとする。）とする。ただし、同日の属する月以前の直近の継続した期間において標準報酬月額が定められている月が十二月に満たない場合にあっては、次の各号に掲げる額のうちいずれか少ない額の三分の二に相当する金額（その金額に、五十銭未満の端数があるときは、これを切り捨て、五十銭以上一円未満の端数があるときは、これを一円に切り上げるものとする。）とする。 art-99/par-2 · https://japanlaw.org/en/health-insurance-act/art-99/par-2 · https://japanlaw.org/l/211AC0000000070/art-99/par-2 The amount of injury and sickness allowance per day is an amount equivalent to two-thirds of the amount equivalent to 1/30th of the average standard monthly remuneration amount (limited to the amount specified by the relevant insured person's insurer; the same applies hereinafter in this paragraph) of each month in the most recent 12 consecutive months before the month in which the payment of injury and sickness allowance starts (if the 1/30 amount is a figure with less than five yen in the ones place, it is to be rounded down, and if it is a figure with at least five yen but less than ten yen in the ones place, it is to be rounded up to the nearest ten yen; if the two-thirds amount is a figure with less than 0.5 yen in the ones place, it is rounded down, and if it is a figure with at least 0.5 yen but less than one yen in the ones place, it is to be rounded up to the nearest one yen); provided, however, that if the number of consecutive months for which the average standard monthly remuneration amount is determined is less than 12, an amount equivalent to two-thirds of an amount equivalent to smaller of the amounts listed in the following items (if the amount is a figure with less than 0.5 yen in the one place, it is to be rounded down, and if it is a figure with at least 0.5 yen but less than one yen in the ones place, it is to be rounded up to the nearest one yen). Ministry of Justice translation — Japanese Law Translation Database System **一** 傷病手当金の支給を始める日の属する月以前の直近の継続した各月の標準報酬月額を平均した額の三十分の一に相当する額（その額に、五円未満の端数があるときは、これを切り捨て、五円以上十円未満の端数があるときは、これを十円に切り上げるものとする。） art-99/par-2/item-1 · https://japanlaw.org/en/health-insurance-act/art-99/par-2/item-1 · https://japanlaw.org/l/211AC0000000070/art-99/par-2/item-1 an amount equivalent to 1/30th of the average standard monthly remuneration amount for each consecutive month before the month which includes the day on which the payment of injury and sickness allowance starts (if the amount is a figure with less than five, it is to be rounded down, and if it is a figure with at least five yen but less than ten yen, it is to be rounded up to the nearest ten yen); or Ministry of Justice translation — Japanese Law Translation Database System **二** 傷病手当金の支給を始める日の属する年度の前年度の九月三十日における全被保険者の同月の標準報酬月額を平均した額を標準報酬月額の基礎となる報酬月額とみなしたときの標準報酬月額の三十分の一に相当する額（その額に、五円未満の端数があるときは、これを切り捨て、五円以上十円未満の端数があるときは、これを十円に切り上げるものとする。） art-99/par-2/item-2 · https://japanlaw.org/en/health-insurance-act/art-99/par-2/item-2 · https://japanlaw.org/l/211AC0000000070/art-99/par-2/item-2 an amount equivalent to 1/30th of the standard monthly remuneration amount calculated when the average standard monthly remuneration amount of all insured persons on September 30 in the year preceding the fiscal year which includes the day on which payment of injury and sickness allowance starts is deemed as the monthly remuneration amount which is the basis of the standard monthly amount remuneration (if the amount is a figure with less than five yen, it is to be rounded down, and if it is a figure with at least five yen but less than ten yen, it is to be rounded up to the nearest 10 yen). Ministry of Justice translation — Japanese Law Translation Database System **第三項** 前項に規定するもののほか、傷病手当金の額の算定に関して必要な事項は、厚生労働省令で定める。 art-99/par-3 · https://japanlaw.org/en/health-insurance-act/art-99/par-3 · https://japanlaw.org/l/211AC0000000070/art-99/par-3 Beyond what is provided for in the preceding paragraph, necessary matters concerning calculation of the amount of injury and sickness allowance are specified by Order of the Ministry of Health, Labour, and Welfare. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 傷病手当金の支給期間は、同一の疾病又は負傷及びこれにより発した疾病に関しては、その支給を始めた日から通算して一年六月間とする。 art-99/par-4 · https://japanlaw.org/en/health-insurance-act/art-99/par-4 · https://japanlaw.org/l/211AC0000000070/art-99/par-4 The payment period for injury and sickness allowance is, with regard to the same sickness or injury as well as any sickness or injury caused thereby, one year and six months in total, counted from the day on which the payment starts. machine translation, not official --- ## Cites - art-99/par-1: 第百二条第一項 → 健康保険法 第百二条第一項 (Article 102, paragraph (1)), art-102/par-1 — https://japanlaw.org/en/health-insurance-act/art-102/par-1 · https://japanlaw.org/l/211AC0000000070/art-102/par-1 - art-99/par-2: この項 → 健康保険法 第九十九条第二項 (Article 99, paragraph (2)), art-99/par-2 — https://japanlaw.org/en/health-insurance-act/art-99/par-2 · https://japanlaw.org/l/211AC0000000070/art-99/par-2 - art-99/par-3: 前項 → 健康保険法 第九十九条第二項 (Article 99, paragraph (2)), art-99/par-2 — https://japanlaw.org/en/health-insurance-act/art-99/par-2 · https://japanlaw.org/l/211AC0000000070/art-99/par-2 ## Cited by 13 provisions cite this one. No official source publishes this direction. - 健康保険法 第九十九条第二項（傷病手当金） — https://japanlaw.org/en/health-insurance-act/art-99/par-2 · https://japanlaw.org/l/211AC0000000070/art-99/par-2 - 健康保険法 第九十九条第三項（傷病手当金） — https://japanlaw.org/en/health-insurance-act/art-99/par-3 · https://japanlaw.org/l/211AC0000000070/art-99/par-3 - 健康保険法 第百二条第二項（出産手当金） — https://japanlaw.org/en/health-insurance-act/art-102/par-2 · https://japanlaw.org/l/211AC0000000070/art-102/par-2 - 健康保険法 第百三条第一項（出産手当金と傷病手当金との調整） — https://japanlaw.org/en/health-insurance-act/art-103/par-1 · https://japanlaw.org/l/211AC0000000070/art-103/par-1 - 健康保険法 第百八条第一項（傷病手当金又は出産手当金と報酬等との調整） — https://japanlaw.org/en/health-insurance-act/art-108/par-1 · https://japanlaw.org/l/211AC0000000070/art-108/par-1 - 健康保険法 第百八条第三項（傷病手当金又は出産手当金と報酬等との調整） — https://japanlaw.org/en/health-insurance-act/art-108/par-3 · https://japanlaw.org/l/211AC0000000070/art-108/par-3 - 健康保険法 第百八条第三項第二号（傷病手当金又は出産手当金と報酬等との調整） — https://japanlaw.org/en/health-insurance-act/art-108/par-3/item-2 · https://japanlaw.org/l/211AC0000000070/art-108/par-3/item-2 - 健康保険法 第百八条第三項第三号（傷病手当金又は出産手当金と報酬等との調整） — https://japanlaw.org/en/health-insurance-act/art-108/par-3/item-3 · https://japanlaw.org/l/211AC0000000070/art-108/par-3/item-3 - 健康保険法 第百八条第三項第四号（傷病手当金又は出産手当金と報酬等との調整） — https://japanlaw.org/en/health-insurance-act/art-108/par-3/item-4 · https://japanlaw.org/l/211AC0000000070/art-108/par-3/item-4 - 健康保険法 第百八条第四項（傷病手当金又は出産手当金と報酬等との調整） — https://japanlaw.org/en/health-insurance-act/art-108/par-4 · https://japanlaw.org/l/211AC0000000070/art-108/par-4 - 健康保険法 附則第九条第二項 — https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-9/par-2 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-9/par-2 - 健康保険法 附則第三条第二項（健康保険法の一部改正に伴う経過措置） — https://japanlaw.org/en/health-insurance-act/suppl-5031-66/art-3/par-2 · https://japanlaw.org/l/211AC0000000070/suppl-5031-66/art-3/par-2 - 雇用保険法 第三十七条第八項 — https://japanlaw.org/en/employment-insurance-act/art-37/par-8 · https://japanlaw.org/l/349AC0000000116/art-37/par-8 --- ## 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 - claude-sonnet-5-5 — Machine translation, batch health-insurance-act-20261010T183826-003, translated 2026-10-11 - This site's parser, version 189 — 健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-10