Positive Predictive Values of ICD-9 Codes to Identify Patients With Stroke or TIA
This study determined that ICD-9 codes 433.X1, 434.XX, and V12.54 had positive predictive values >90%, and may be used to focus care on stroke patients.
Angiotensin-converting Enzyme Inhibitor Therapy for Coronary Artery Disease and Diabetes Mellitus