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Core Data Elements in Acute Myeloid Leukemia: A Unified Medical Language System–Based Semantic Analysis and Experts’ Review

Core Data Elements in Acute Myeloid Leukemia: A Unified Medical Language System–Based Semantic Analysis and Experts’ Review

Semantic codes were chosen from the UMLS meta-thesaurus by a medical expert, based on the existing coding principles [23]. Medical concepts were manually extracted from the discharge letters, which are naturally free-text letters, and then semantically annotated with UMLS codes.As the coding principles indicate, pre and postcoordinated codes were chosen per item. If no precoordinated code was available for a medical concept, postcoordination was considered.

Christian Holz, Torsten Kessler, Martin Dugas, Julian Varghese

JMIR Med Inform 2019;7(3):e13554