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Accuracy of Medical Billing Data Against the Electronic Health Record in the Measurement of Colorectal Cancer Screening Rates by Rudrapatna, Vivek A; Glicksberg, Benjamin S; Avila, Patrick; Harding-Theobald, Emily; Wang, Connie; Butte, Atul J is a Health Professions article available to read on EtoBox.

What is Accuracy of Medical Billing Data Against the Electronic Health Record in the Measurement of Colorectal Cancer Screening Rates about?

## Objective Medical billing data are an attractive source of secondary analysis because of their ease of use and potential to answer population-health questions with statistical power. Although these datasets have known susceptibilities to biases, the degree to which they can distort the assessment of quality measures such as colorectal cancer screening rates are not widely appreciated, nor are their causes and possible solutions. ## Methods Using a billing code database derived from our institution’s electronic health records, we estimated the colorectal cancer screening rate of average-risk patients aged 50–74 years seen in primary care or gastroenterology clinic in 2016–2017. 200 records (150 unscreened, 50 screened) were sampled to quantify the accuracy against manual review. ## Results Out of 4611 patients, an analysis of billing data suggested a 61% screening rate, an estimate that matches the estimate by the Centers for Disease Control. Manual review revealed a positive predictive value of 96% (86%–100%), negative predictive value of 21% (15%–29%) and a corrected screening rate of 85% (81%–90%). Most false negatives occurred due to examinations performed outside the scope o

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Author

Rudrapatna, Vivek A; Glicksberg, Benjamin S; Avila, Patrick; Harding-Theobald, Emily; Wang, Connie; Butte, Atul J

Publisher

BMJ; [London]: BMJ Publishing Group Limited (ISSN 2399-6641)

Published

2020

Language

EN

Field

Health Professions (Health Sciences)