ICD-10-CM > Z00-Z99 > Z14-Z15 > Z15 > Z15.2 Z15.2 Genetic susceptibility to obesity Billable/Specific Copy Code Copy Description Code Also , if applicable, any associated manifestations, such as:other obesity (E66.8-)polyphagia (R63.2) Use Additional code to identify body mass index (BMI), if known (Z68.-)