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. Author manuscript; available in PMC: 2017 Jul 17.
Published in final edited form as: IEEE EMBS Int Conf Biomed Health Inform. 2017 Apr 13;2017:493–496. doi: 10.1109/BHI.2017.7897313

Fig. 3.

Fig. 3

In our implementation of i2b2, patient data is tagged with ICD9 concepts for a 10 year period and later tagged with ICD10 concepts for nearly a three year period; a small period of time contains concepts from either ontology.