Richard J Giza, Marisa E Millenson, David J Levinthal, Ravy K Vajravelu
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Suboptimal Performance of Microscopic Colitis Diagnosis Codes: A Bottleneck for Epidemiologic Insights.
Introduction: Administrative health data could contribute to generalizable microscopic colitis insights, but International Classification of Diseases (ICD) codes for microscopic colitis have not been validated.
Methods: We identified individuals who received care for diarrhea in the Veterans Health Administration and classified them by receipt of microscopic colitis ICD codes. We reviewed random samples of charts to calculate the positive predictive value (PPV) and negative predictive value (NPV). We then calculated the sensitivity and specificity in clinically relevant cohorts.
Results: The PPV was 0.790 and the NPV was 0.995. In a cohort of individuals with diarrhea who underwent colonoscopy, the sensitivity and specificity were 0.734 and 0.996, respectively.
Conclusion: Alternative ascertainment methods for microscopic colitis are needed because ICD codes have suboptimal performance.
期刊介绍:
Clinical and Translational Gastroenterology (CTG), published on behalf of the American College of Gastroenterology (ACG), is a peer-reviewed open access online journal dedicated to innovative clinical work in the field of gastroenterology and hepatology. CTG hopes to fulfill an unmet need for clinicians and scientists by welcoming novel cohort studies, early-phase clinical trials, qualitative and quantitative epidemiologic research, hypothesis-generating research, studies of novel mechanisms and methodologies including public health interventions, and integration of approaches across organs and disciplines. CTG also welcomes hypothesis-generating small studies, methods papers, and translational research with clear applications to human physiology or disease.
Colon and small bowel
Endoscopy and novel diagnostics
Esophagus
Functional GI disorders
Immunology of the GI tract
Microbiology of the GI tract
Inflammatory bowel disease
Pancreas and biliary tract
Liver
Pathology
Pediatrics
Preventative medicine
Nutrition/obesity
Stomach.