Iowa Admin. Code r. 191-40.23
All HMOs shall include in contracts and evidence of coverage forms a statement disclosing the existence of any prescription drug formularies. Upon request, an HMO offering a plan that includes a prescription drug formulary shall inform enrollees of the plan, and prospective enrollees of the plan during any open enrollment period, whether a prescription drug specified in the request is included in such formulary.
All HMOs shall also disclose the existence of any contractual arrangements providing rebates received by them for prescription drugs or durable medical equipment. Durable medical equipment means equipment that can stand repeated use and is primarily and customarily used to serve a medical purpose and is generally not useful to a person who is not sick or injured or used by other family members and is appropriate for home use for the purpose of improving bodily functions or preventing further deterioration of the medical condition caused by sickness or injury.
Iowa Admin. Code r. 191-40.23