" /> Obesity - CISMeF





ICD-11 code : 5B81;

Preferred Label : Obesity;

ICD-11 definition : 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.;

ICD-11 synonym : Simple obesity NOS; adiposis; excess fat; Obesity, not elsewhere classified, body mass index not elsewhere classified;

ICD-11 "other" category code : 5B81.Y;

ICD-11 "unspecified" category code : 5B81.Z;

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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.

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18/12/2025


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