Do ICD9-CM and ICD-10 codes accurately identify acute myocardial infarction from electronic healthcare records?
ICD9-CM and ICD-10 codes are reliable for identifying acute myocardial infarction in electronic healthcare records, though ICPC codes and free-text searches require optimization.
ICD9-CM and ICD-10 codes have good PPV in identifying AMI from EHRs; strategies are necessary to further optimise utility of ICPC codes and free-text search. Use of specific AMI disease codes in estimation of risk during drug exposure may lead to small but significant changes and at the expense of decreased precision.
Coloma et al. (Sat,) studied this question.
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