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5B81 Obesity

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Obesity is a chronic complex disease defined by excessive adiposity that can impair health. It is in most cases a multifactorial disease due to obesogenic environments, psycho-social factors and genetic variants. In a subgroup of patients, single major etiological factors can be identified (medications, diseases, immobilization, iatrogenic procedures, monogenic disease/genetic syndrome). Body mass index (BMI) is a surrogate marker of adiposity calculated as weight (kg)/height² (m²). The BMI categories for defining obesity vary by age and gender in infants, children and adolescents. For adults, obesity is defined by a BMI greater than or equal to 30.00 kg/m² and there are three levels of severity in recognition of different management options.

code elsewhere

• Obesity hypoventilation syndrome  (7A42.0)
• Syndromes with obesity as a major feature  (LD29)

sections/codes in this section (5B81-5B81)

• Obesity due to energy imbalance  (5B81.0)
• Drug-induced obesity  (5B81.1)
• Other specified obesity  (5B81.Y)
• Obesity, unspecified  (5B81.Z)

postcoordination

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