Co-insurance rates are the same across inpatient, outpatient, and specialist outpatient services, depending on the category of care. However, for the following high-cost medical equipment, the following standards apply: - CT, MRI, PET, ultrasound: Co-insurance rates are the same as those for outpatient specialist consultations. Rates may change for tests outside designated areas or if the number of tests exceeds the limit (selective benefits).