Consider adding Diagnosis Code I51.3 under 'Value Set Names: Atrial Fibrillation or Flutter, VTE' in the VTE value set for both VTE1 and VTE2.  Diagnosis I51.3 should be included to allow administration of Oral Factor Xa Inhibitor as an allowed medication for VTE prophylaxis. 

"Encounter with Medication Oral Factor Xa Inhibitor Administered on Day of or Day After Admission or Procedure" should union w/ "Encounter with Prior or Present Diagnosis of Atrial Fibrillation or Prior Diagnosis of VTE" with the addition of this Diagnosis code to meet Numerator

"Encounter with Medication Oral Factor Xa Inhibitor Administered on Day of or Day After First ICU Stay or Procedure" should union w/ "Encounter with Prior or Present Diagnosis of Atrial Fibrillation or Prior Diagnosis of VTE" with the addition of this Diagnosis code to meet Numerator