Del. Code tit. 10 § 4335
In any case before a Delaware Court where there is a dispute over the economic amount a party owes another party for future lost wages and/or future medical expenses, there shall be a rebuttable presumption that the inflation rate for future lost wages and/or future medical expenses is equal to the economic discount rate. No party shall be required to present an economic expert witness opinion to a jury or court for the purpose of having the present value of the economic amount of a party's claim for either future lost wages and/or future medical expenses introduced into evidence. However, no party is precluded from presenting admissible expert witness opinion to a jury or court for the purposes of having the present value of the economic amount of a party's claim for either future lost wages or future medical expenses introduced into evidence, or to oppose the present value of the economic amount of a party's claim for either future lost wages or future medical expenses. A Delaware court shall have the discretion in any case to order sua sponte or for good cause shown that a party shall be required to present economic expert opinion evidence on the present value of the economic amount that a party is owed by another party for future lost wages and/or future medical expenses.
10 Del. C. § 4335