amount of cost sharing (including deductibles, copayments, and coinsurance) that the participant or beneficiary will incur for such item or service (which, in the case such item or service is to be furnished by a provider described in subparagraph (B), shall be calculated using the amount or rate described in such subparagraph (or, in the case such plan uses a percentage of billed charges to determined the amount of payment for such provider, using a reasonable estimate of such percentage of such charges)). (D) The amount the participant or beneficiary has already accumulated with respect to any deductible or out of pocket maximum under the plan (broken down, in the case separate deductibles or maximums apply to separate participants and beneficiaries enrolled in the plan, by such separate deductibles or maximums, in addition to any cumulative deductible or maximum). (E) Any shared savings or other benefit available to the participant or beneficiary with respect to such item or service. (F) In the case such plan imposes any frequency or volume limitations with respect to such item or service (excluding medical necessity determinations), the amount that such participant or beneficiary has accrued towards such limitation with respect to such item or service. (G) Any prior authorization, concurrent review, step therapy, fail first, or similar requirements applicable to coverage of such item or service under such plan. (3) Self-service tool For purposes of paragraph (1), a self-service tool established by a group health plan meets the requirements of this paragraph if such tool— (A) is based on an Internet website, mobile application, or other platform determined appropriate by the Secretary