Thank you for your question regarding CMS104v13/STK-2: Discharged on Antithrombotic Therapy. The logic utilizes the "Medication, Discharge" datatype. When utilizing the "Medication, Discharge" datatype, the logic will look for the time stamp of a medication on a patient discharge medication list and is intended to express active medications ordered for post-discharge use. The medication could be a previous antithrombotic the patient was already on or a newly prescribed medication during the encounter. The medication should be documented as a discharge medication on the discharge medication list with an author timestamp during the Ischemic Stroke Encounter. If the documentation does not have an author time stamp within the Ischemic Stroke Encounter then the case will not meet the measure.