Table 1.

Critical information gathered from review of previous acute myocardial infarction (AMI) validation studies of electronic health data

Data types	Algorithm components	Algorithm structure	Algorithm performance metrics
Registry Hospital Administrative Data Claims data Other (Electronic health record, survey data)	ICD-8, ICD-9, ICD-10 discharge codes Position of this code (primary position; first position; second position; “Most responsible diagnosis”) Diagnosis-related Group (DRG) codes Other criteria: length of hospital stay (3-180 days); transfer to or from outside hospital; death during hospital stay; previous AMI in past 8 weeks;	Combination of codes by type (ICD-8, 9, 10, DRG) using OR vs. AND Combination by position (primary only vs. primary OR first vs. primary OR first OR second, etc.) Combination of code with other criteria (example: ICD code AND length of stay >3 days).	Sensitivity Specificity Positive predictive value (PPV)