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Fig. 2 | BMC Medical Research Methodology

Fig. 2

From: Suitability of administrative claims databases for bariatric surgery research – is the glass half-full or half-empty?

Fig. 2

Presence of claims-based weight-related ICD-9-CM or ICD-10-CM diagnosis codes during the first postoperative year. Left panel: among all patients who underwent one of the three main bariatric surgical operations in 2011–2018; Middle panel: among patients who had weight-related diagnosis codes during the 6-month preoperative period; Right panel: among patients who had granular weight-related diagnosis codes during the 6-month preoperative period. Granular codes are diagnosis codes denoting narrow body mass index (BMI) ranges (e.g., V85.30 or Z68.30 indicating BMI between 30.0 and 30.9 kg/m2); Nonspecific codes are diagnosis codes denoting broad BMI ranges or obesity status

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BMC Medical Research Methodology

ISSN: 1471-2288

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