Thank you for submitting this issue. In the narrative section for the 2015 eCQM specification, it says "Patients with a principal diagnosis of ischemic stroke, history of atrial ablation, and current or history of atrial fibrillation/flutter", which is a mismatch of what the logic section says. This narrative statement should read: "Patients with a principal diagnosis of ischemic stroke, and a history of atrial ablation, or current or history of atrial fibrillation/flutter", and was corrected in the 2016 annual update cycle. The logic reflects this statement, so in order to satisfy the denominator, you need to have a principal diagnosis of ischemic stroke and either a history of atrial ablation or a current diagnosis or history of atrial fibrillation/flutter.

Clarification needed on 2015 specification. In the 2015 specifications for Measure STK-3 the denominator is written as patients with "principle diagnosis of ischemic stroke, history of atrial ablation, and current or history of atrial fibrillation/flutter."Question, when following the 2015 specifications in order to satisfy the denominator do patients need to have ischemic stroke as principle diagnosis AND history of atrial ablation AND current or history of atrial fibrillation