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Coping with changing controlled vocabularies

J J Cimino1, P D Clayton

  • 1Center for Medical Informatics, Columbia University, New York, New York 10032.

Proceedings. Symposium on Computer Applications in Medical Care
|January 1, 1994
PubMed
Summary
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Controlled medical vocabularies evolve, requiring reconciliation with historical patient data. This study examines vocabulary changes and methods for managing data integrity in clinical databases.

Area of Science:

  • Medical Informatics
  • Health Information Management
  • Clinical Data Management

Background:

  • Controlled medical vocabularies are dynamic and continuously updated.
  • Maintaining consistency between evolving vocabularies and historical patient data is crucial for clinical databases.

Purpose of the Study:

  • To explore the types of changes occurring in controlled medical vocabularies.
  • To discuss methods for reconciling these changes with existing clinical data.

Main Methods:

  • Analysis of vocabulary change types: additions, deletions, and modifications.
  • Examination of examples from the International Classification of Diseases (ICD-9-CM) 1993 update.
  • Description of reconciliation strategies used at Columbia-Presbyterian Medical Center.

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Main Results:

  • Controlled vocabularies undergo various changes, including term additions, deletions, and modifications.
  • Specific examples illustrate the complexities of vocabulary evolution.
  • Methods for reconciling vocabulary changes with clinical databases are being implemented.

Conclusions:

  • Effective management of evolving controlled medical vocabularies is essential for maintaining the integrity of historical patient information.
  • Strategies for reconciling vocabulary changes are critical for accurate clinical data analysis and retrieval.