2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Endocrine, Nutritional And Metabolic Diseases, And Immunity Disorders 240-279 > Other Metabolic Disorders And Immunity Disorders 270-279 > Obesity And Other Hyperalimentation 278.* > 2006 ICD-9-CM Diagnosis 278.00 Obesity unspecified View the most recent version of ICD-9-CM 278.00 Having a high amount of body fat. A person is considered obese if they have a body mass index (BMI) of 30 or more. Body weight grossly beyond skeletal and physical standards as the result of an excessive accumulation of FATS in the body. Depending on age, sex, and genetic background, a BODY MASS INDEX (BMI) greater than 30.0 can be considered obese, and a BMI greater than 40.0 can be considered morbidly obese (MORBID OBESITY). 278.00 is a specific code that can be used to specify a diagnosis 278.00 contains 4 index entries View the ICD-9-CM Volume 1 278.* hierarchy Alternate Terminology Obesity NOS  Index entries containing 278.00: Constitutional - see also condition obesity 278.00 morbid 278.01 Obesity (constitutional) (exogenous) (familial) (nutritional) (simple) 278.00 adrenal 255.8 complicating pregnancy, childbirth, or puerperium due to hyperalimentation 278.00 endocrine NEC 259.9 endogenous 259.9 Fröhlich's (adiposogenital dystrophy) 253.8 glandular NEC 259.9 hypothyroid (see also Hypothyroidism) 244.9 morbid 278.01 of pregnancy pituitary 253.8 severe 278.01 thyroid (see also Hypothyroidism) 244.9 Polysarcia 278.00