Accuracy of ICD-9 codes in identifying patients with peptic ulcer and gastrointestinal hemorrhage in the regional healthcare administrative database of Umbria
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DOI: 10.1371/journal.pone.0235714
Abstract: Background Peptic ulcer is a widespread disease, frequently complicated by perforation and bleeding. Administrative databases are useful tool to perform epidemiological and drug utilization studies, but they need a validation process based on a comparison… read more here.
Keywords: gastrointestinal hemorrhage; peptic ulcer; database umbria; accuracy ... See more keywords