MedDRA

In Data & data management

MedDRA is the standard medical dictionary used to code symptoms, diagnoses, and other medical events in regulatory data. Coding a reported event to MedDRA means everyone counts the same thing the same way, so "heart attack" and "myocardial infarction" are not tallied separately. Safety and data teams use it constantly.

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Educational reference only. Where regional rules differ, follow the regulation and the written procedures that apply where you work.