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Systematic review of validated case definitions for diabetes in ICD-9-coded and ICD-10-coded data in adult populations.

Bushra KhokharNathalie JetteAmy MetcalfeCeara Tess CunninghamHude QuanGilaad G KaplanSonia ButaliaDoreen Rabi
Published in: BMJ open (2016)
Overall, administrative health databases are useful for undertaking diabetes surveillance, but an awareness of the variation in performance being affected by case definition is essential. The performance characteristics of these case definitions depend on the variations in the definition of primary diagnosis in ICD-coded discharge data and/or the methodology adopted by the healthcare facility to extract information from patient records.
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