Mapping Partners Master Drug Dictionary to RxNorm using an NLP-based approach

► We mapped Partners Master Drug Dictionary (MDD) to RxNorm. ► 74.7% of MDD terms had an exact semantic match to RxNorm. ► Natural language processing tool achieved a precision of 99.8% and a recall of 73.9%. ► Multiple challenges and gaps in mapping were identified. ► NLP tool followed by manual review is efficient for drug terminology mapping.