A descriptive delta for identifying changes in SNOMED CT

Document Type

Conference Proceeding

Publication Date

1-1-2016

Abstract

SNOMED CT is a large and complex medical terminology. Thousands of editing operations are applied to its content for each new release. Understanding what changed in a release is important for the end user and SNOMED CT editors. Each SNOMED CT release comes with release notes that provide a brief description of the changes that occurred and a set of "delta" files that identify individual changes in the content. The release notes are brief and changes to thousands of concepts may be described in a few sentences, whereas the delta files contain tens of thousands of individual changes. To better identify how SNOMED CT content changes between releases we introduce a methodology of creating a descriptive delta that captures the editing operations that were applied to SNOMED CT content in a given release in a more comprehensible form. We use this methodology to analyze editing operations that were part of a recent remodeling effort of the Congenital disease and Infectious disease subhierarchies in the large Clinical finding hierarchy.

Identifier

85018742779 (Scopus)

Publication Title

Ceur Workshop Proceedings

ISSN

16130073

Volume

1747

Grant

R01CA190779

Fund Ref

National Institutes of Health

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