Table 2 Classification of CDI Cases by Setting of Acquisition
Case definition | Criteria for classification |
|---|---|
CO-CDI | - Discharge code ICD-9-CM 008.45 as Primary diagnosis |
HO-CDI | - Discharge code ICD-9-CM 008.45 as secondary diagnosis, without a primary diagnosis of a CDI-related symptom (e.g. diarrhea) - Study population ≥ 48 h of hospitalization - Symptom onset and/or positive laboratory assay at least ≥ 48 h hospitalization |
Both CDI | - No distinction of settings of acquisition - Discharge code ICD-9-CM 008.45 in any position |