高額介護合算療養費は、次に掲げる額を合算した額から七十歳以上介護合算支給総額(次項に規定する七十歳以上介護合算一部負担金等世帯合算額から同項の七十歳以上介護合算算定基準額を控除した額(当該額が高額介護合算療養費の支給の事務の執行に要する費用を勘案して厚生労働大臣が定める支給基準額(以下この条において「支給基準額」という。)以下である場合又は当該七十歳以上介護合算一部負担金等世帯合算額の算定につき同項ただし書に該当する場合には、零とする。)をいう。)を控除した額(以下この項において「介護合算一部負担金等世帯合算額」という。)が介護合算算定基準額に支給基準額を加えた額を超える場合に基準日被保険者に支給するものとし、その額は、介護合算一部負担金等世帯合算額から介護合算算定基準額を控除した額に介護合算按分率(第一号に掲げる額から次項の規定により支給される高額介護合算療養費の額を控除した額を、介護合算一部負担金等世帯合算額で除して得た率をいう。)を乗じて得た額とする。ただし、同号から第五号までに掲げる額を合算した額又は第六号及び第七号に掲げる額を合算した額が零であるときは、この限りでない。
Expenses for high-cost medical treatment combined with long-term care are to be paid to the insured person on the reference date where the amount (hereinafter referred to as the "household total of co-payments, etc. combined with long-term care" in this paragraph) obtained by deducting the total payment for combined long-term care for persons aged 70 or over (meaning the amount obtained by deducting the base amount for the combined long-term care calculation for persons aged 70 or over under the following paragraph from the household total of co-payments, etc. combined with long-term care for persons aged 70 or over prescribed in that paragraph (or zero, where that amount is equal to or less than the payment threshold specified by the Minister of Health, Labour and Welfare in consideration of the costs required for administering the payment of expenses for high-cost medical treatment combined with long-term care (hereinafter referred to as the "payment threshold" in this Article) or where the proviso to that paragraph applies to the calculation of that household total of co-payments, etc. combined with long-term care for persons aged 70 or over)) from the total sum of the following amounts exceeds the amount obtained by adding the payment threshold to the base amount for the combined long-term care calculation, and the amount of those expenses is to be the amount obtained by multiplying the amount obtained by deducting the base amount for the combined long-term care calculation from the household total of co-payments, etc. combined with long-term care by the apportionment rate for the combined long-term care calculation (meaning the rate obtained by dividing the amount obtained by deducting the amount of expenses for high-cost medical treatment combined with long-term care to be paid under the provisions of the following paragraph from the amount listed in item (i), by the household total of co-payments, etc. combined with long-term care); provided, however, that this does not apply where the total sum of the amounts listed in that item through item (v) or the total sum of the amounts listed in items (vi) and (vii) is zero.