Every health service corporation and every similar corporation licensed under the laws of another state that issues or renews any policy, plan, or contract of individual or group accident or health insurance providing benefits for medical or hospital expenses, shall provide to each individual or group, or to the portion of each group comprised of certificate holders of such insurance who are residents of this state, coverage for the medically appropriate and necessary outpatient self-management training and educational services, pursuant to a written order of a primary care physician or practitioner, including but not limited to medical nutrition therapy for the treatment of diabetes, provided by a certified, registered, or licensed health care professional with expertise in diabetes, subject to the terms and conditions of the policy. Each health service corporation that issues or renews any individual or group policy, plan, or contract of accident or health insurance providing benefits for medical or hospital expenses which provides a prescription rider shall cover medically appropriate or necessary insulin, oral agents, and equipment used to treat diabetes subject to the terms and conditions of the policy. Each health service corporation that provides coverage for prescription insulin drugs shall cap the total amount that a covered person is required to pay for each covered insulin drug prescription at an amount not to exceed $30 for each 30-day supply of each insulin prescription. The maximum $30 copayment for each 30-day supply of each covered insulin drug prescription shall apply when an original prescription is dispensed as well as when refills of the prescription are dispensed, including early refills. Coverage for prescription insulin drugs shall not be subject to any deductible. Each health service corporation that issues or renews any individual or group policy, plan, or contract of accident or health insurance providing benefits for medical or hospital expenses which provides for durable medical equipment coverage shall provide coverage for medically appropriate or necessary equipment used to treat diabetes subject to the terms and conditions of the policy.