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Assessing the Ability of Hospital Diagnosis Codes to Detect Inpatient Exposure to Antibacterial Agents.
- Source :
-
Infection control and hospital epidemiology [Infect Control Hosp Epidemiol] 2018 Apr; Vol. 39 (4), pp. 377-382. Date of Electronic Publication: 2018 Feb 20. - Publication Year :
- 2018
-
Abstract
- OBJECTIVE Because antibacterial history is difficult to obtain, especially when the exposure occurred at an outside hospital, we assessed whether infection-related diagnostic billing codes, which are more readily available through hospital discharge databases, could infer prior antibacterial receipt. DESIGN Retrospective cohort study. PARTICIPANTS This study included 121,916 hospitalizations representing 78,094 patients across the 3 hospitals. METHODS We obtained hospital inpatient data from 3 Chicago-area hospitals. Encounters were categorized as "infection" if at least 1 International Classification of Disease, Ninth Revision, Clinical Modification (ICD-9-CM) code indicated a bacterial infection. From medication administration records, we categorized antibacterial agents and calculated total therapy days using Centers for Disease Control and Prevention (CDC) definitions. We evaluated bivariate associations between infection encounters and 3 categories of antibacterial exposure: any, broad spectrum, or surgical prophylaxis. We constructed multivariable models to evaluate adjusted risk ratios for antibacterial receipt. RESULTS Of the 121,916 inpatient encounters (78,094 patients) across the 3 hospitals, 24% had an associated infection code, 47% received an antibacterial, and 13% received a broad-spectrum antibacterial. Infection-related ICD-9-CM codes were associated with a 2-fold increase in antibacterial administration compared to those lacking such codes (RR, 2.29; 95% confidence interval [CI], 2.27-2.31) and a 5-fold increased risk for broad-spectrum antibacterial administration (RR, 5.52; 95% CI, 5.37-5.67). Encounters with infection codes had 3 times the number of antibacterial days. CONCLUSIONS Infection diagnostic billing codes are strong surrogate markers for prior antibacterial exposure, especially to broad-spectrum antibacterial agents; such an association can be used to enhance early identification of patients at risk of multidrug-resistant organism (MDRO) carriage at the time of admission. Infect Control Hosp Epidemiol 2018;39:377-382.
- Subjects :
- Disease Notification methods
Disease Notification standards
Drug Resistance, Multiple drug effects
Female
Humans
Illinois epidemiology
International Classification of Diseases
Male
Medical Records statistics & numerical data
Middle Aged
Patient Discharge standards
Patient Discharge statistics & numerical data
Risk Assessment
Anti-Bacterial Agents classification
Anti-Bacterial Agents pharmacology
Cross Infection diagnosis
Cross Infection drug therapy
Cross Infection epidemiology
Cross Infection prevention & control
Hospitals standards
Hospitals statistics & numerical data
Subjects
Details
- Language :
- English
- ISSN :
- 1559-6834
- Volume :
- 39
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Infection control and hospital epidemiology
- Publication Type :
- Academic Journal
- Accession number :
- 29460713
- Full Text :
- https://doi.org/10.1017/ice.2018.23