c131ad4c____National_Women_s_Law_Center__Issue
[FAQ] Yes, although plans and issuers have limited use of reasonable medical management techniques to control costs and promote efficient delivery of care. For example, if a provider prescribes a drug and there is a generic equivalent available, a plan or issuer may cover the generic without cost-sharing and impose cost-sharing on the branded drug. If a generic version is not available, then a plan or issuer must provide coverage for the brand name drug without cost-sharing. However, the plan must have a waiver process that enables the woman to access the branded drug without cost-sharing when a generic drug is available but her provider determines that the branded drug is medically appropriate for her. (see Question 14 of the FAQ) [Issue] 
Are plans and issuers required to cover the specific contraceptive prescribed by a woman's health care provider?
Women’s Access to Preventive Services Affirmed by HHS | National Women's Law Center
Issue