Thank you for your inquiry of CMS104v11 STK-2, Discharged on Antithrombotic Therapy. Measure ‘Guidance’ states: “The measure is an episode-based measure. An episode is defined as each inpatient hospitalization or encounter that ends during the measurement period.”
STK-2 use the "Medication, Discharge" datatype, which for this measure contains two (2) value sets “Antithrombotic Therapy for Ischemic Stroke (OID 2.16.840.1.113762.1.4.1110.62) and "Pharmacological Contraindications For Antithrombotic Therapy (OID 2.16.840.1.113762.1.4.1110.52)" both refer to the discharge medication list and is intended to express medications ordered for post-discharge use and as well as assessing for the authorDateTime of medications discharged per episode during the measurement period. You can reference the applicable codes containing these value sets on the Value Set Authority Center (VSAC) at
https://vsac.nlm.nih.gov/ . Click on the “Search Value Sets” tab and enter the value set ID to review codes included in the respective value set.