Where a previous or subsequent incapacity for work was caused by an accident which occurred when the person concerned was subject to the legislation of a Member State which makes no distinction according to the origin of the incapacity to work, the competent institution or the body designated by the competent authority of the Member State in question shall:
upon request by the competent institution of another Member State, provide information concerning the degree of the previous or subsequent incapacity for work, and where possible, information making it possible to determine whether the incapacity is the result of an accident at work within the meaning of the legislation applied by the institution in the other Member State;
take into account the degree of incapacity caused by these previous or subsequent cases when determining the right to benefits and the amount, in accordance with the applicable legislation.