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Emerg Infect Dis. 2006 Oct;12(10):1576-9.

ICD-9 codes and surveillance for Clostridium difficile-associated disease.

Author information

1
Washington University in St. Louis-School of Medicine, Saint Louis, Missouri, USA. edubberk@im.wustl.edu

Abstract

We conducted a retrospective cohort study to compare Clostridium difficile-associated disease rates determined by C. difficile-toxin assays and International Classification of Diseases, 9th Revision (ICD-9) codes. The correlation between toxin assay results and ICD-9 codes was good (K = 0.72, p<0.01). The sensitivity of the ICD-9 codes was 78% and the specificity was 99.7%.

PMID:
17176576
PMCID:
PMC3290935
DOI:
10.3201/eid1210.060016
[Indexed for MEDLINE]
Free PMC Article

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