There are a number of measures that use the datatypes "Medication, order" or "Medication, Active" Those measures are usually looking for a prescription or entry on the medication list for the medication which indicates that the patient is taking it as an outpatient for a long period of time. An example is CMS 164, in which the recommended therapy is aspirin taken every day. But the measure authors have no way to indicate that they only want outpatient prescriptions to be considered, with the result that even a single dose of the med in an ER or inpatient setting recorded in an enterprise EHR counts the patient in the numerator. Measure authors should be able to specify in what setting the medication is ordered or active.