With respect to the amount of an employees' disability pension provided for in Article 50, paragraph (1), the period during which a person was an insured after the month that includes the day of disability assessment for the disability that constitutes the grounds for payment of the relevant employees' disability pension (or, for the employees' disability pension under the provisions of Article 47-3, paragraph (1), the day of disability assessment for the base injury or illness provided for in that paragraph; or, for the employees' disability pension under the provisions of Article 48, paragraph (1), whichever is the latest day among the days of disability assessment for each of the combined disabilities (or, for a disability provided for in Article 47-3, paragraph (1), the day of disability assessment for the base disability provided for in that paragraph)) is not a basis for its calculation.
第五十条第一項に定める障害厚生年金の額については、当該障害厚生年金の支給事由となつた障害に係る障害認定日（第四十七条の三第一項の規定による障害厚生年金については同項に規定する基準傷病に係る障害認定日とし、第四十八条第一項の規定による障害厚生年金については併合されたそれぞれの障害に係る障害認定日（第四十七条の三第一項に規定する障害については、同項に規定する基準障害に係る障害認定日）のうちいずれか遅い日とする。）の属する月後における被保険者であつた期間は、その計算の基礎としない。