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Accuracy of diagnostic content of hospital activity analysis in infectious diseases
Insights
Hospital activity analysis (HAA) data may be inaccurate for infectious disease planning. A review found 19.2% of diagnostic codes were incorrect, highlighting a need for improved clinical data entry.
Area of Science:
- Medical Informatics
- Infectious Disease Epidemiology
- Healthcare Data Quality
Background:
- Hospital Activity Analysis (HAA) is a data source for healthcare planning.
- Accurate diagnostic coding is crucial for reliable HAA data.
- Infectious disease data quality in HAA has not been extensively evaluated.
Purpose of the Study:
- To assess the accuracy of diagnostic coding for infectious diseases within HAA data.
- To identify common sources of coding errors in infectious disease diagnoses.
- To inform strategies for improving the reliability of HAA for public health surveillance.
Main Methods:
- Utilized Hospital Activity Analysis (HAA) data to identify patients with infectious disease codes.
- Conducted a manual review of clinical notes by a physician for a subset of patients.
- Calculated the percentage of diagnostic coding inaccuracies.
Main Results:
- Identified 2151 patients with infectious disease diagnostic codes.
- Found that 414 patients (19.2%) had incorrect diagnostic coding.
- Diarrheal and viral infections were the most frequently miscoded conditions.
Conclusions:
- Significant diagnostic coding inaccuracies exist in HAA data for infectious diseases.
- These inaccuracies can impact the reliability of HAA for healthcare planning and surveillance.
- Enhanced clinician completion of HAA forms could improve data accuracy.
Abstract:
Hospital activity analysis (HAA) was used to identify 2151 patients in whom the diagnostic code fell within the infectious disease categories of the International Classification of Disease. The clinical notes of these patients were examined by a doctor and in 414 (19.2%) the diagnostic coding was incorrect. Diarrhoea and viral infections were miscoded most often. The possibility of inaccuracy must be considered when HAA aggregated data are used for planning purposes. Accuracy could be improved if clinicians routinely completed the diagnostic sections of the HAA form.