5B81.01 Obesity in adults

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

Obesity is defined as a body mass index (BMI) greater than or equal to 30.00 kg/m². There are three levels of severity in recognition of different management options.

postcoordination

synonyms

• Obesity in adults
• Obesity in adults with BMI 30.00-34.99 kg/m²
• Obesity in adults due to excess calories with Body-Mass-Index of 30 but less than 35 kg/m²
• Obesity in adults, class I
• Obesity in adults with BMI 35.00-39.99 kg/m²
• obesity in adults due to excess calories with Body-Mass-Index of 35 but less than 40 kg/m²
• obesity in adults, class 2
• obesity in adults, class II
• Obesity in adults with BMI greater than or equal to 40.00 kg/m²
• morbid obesity in adults
• obesity in adults due to excess calories with Body-Mass-Index of 40 and more kg/m²
• obesity in adults, class 3
• obesity in adults, class III

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