Extracting structured medication event information from discharge summaries

AMIA Annu Symp Proc. 2008 Nov 6;2008:237-41.


We present a method that extracts medication information from discharge summaries. The program relies on parsing rules written as a set of regular expressions and on a user-configurable drug lexicon. Our evaluation shows a precision of 94% and recall of 83% in the extraction of medication information. We use a broader definition of medication information than previous studies, including drug names appearing with and without dosage information, misspelled drug names, and contextual information.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural

MeSH terms

  • Artificial Intelligence*
  • Information Storage and Retrieval / methods*
  • Medical Record Linkage / methods*
  • Medical Records Systems, Computerized / organization & administration*
  • Natural Language Processing*
  • New York
  • Patient Discharge*
  • Pattern Recognition, Automated / methods*