# 国民健康保険法 / National Health Insurance Act — 第十八条 (Supplementary Provisions, Article 18)
- 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: 第十八条 (Supplementary Provisions, Article 18) — address `suppl-3611-106/art-18`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/national-health-insurance-act/suppl-3611-106/art-18
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/333AC0000000192/suppl-3611-106/art-18
- 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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### 第十八条
suppl-3611-106/art-18 · https://japanlaw.org/en/national-health-insurance-act/suppl-3611-106/art-18 · https://japanlaw.org/l/333AC0000000192/suppl-3611-106/art-18
**第一項** 第二条の規定による改正後の国民健康保険法第八十一条の三第一項ただし書及び第二項の規定は、昭和六十一年度以後の年度の療養給付費拠出金の額の算定について適用し、昭和六十年度以前の年度の療養給付費拠出金の額の算定については、なお従前の例による。
suppl-3611-106/art-18/par-1 · https://japanlaw.org/en/national-health-insurance-act/suppl-3611-106/art-18/par-1 · https://japanlaw.org/l/333AC0000000192/suppl-3611-106/art-18/par-1
The provisions of the proviso of Article 81-3, paragraph (1) and of paragraph (2) of the National Health Insurance Act as amended by the provisions of Article 2 apply to the calculation of the amount of contributions for medical treatment benefit expenses for fiscal year 1986 and subsequent fiscal years, and the provisions then in force continue to govern the calculation of the amount of contributions for medical treatment benefit expenses for fiscal year 1985 and earlier fiscal years.
machine translation, not official
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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-20261017T183826-015, 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