ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 4  /  E65-E68  /  E66
E66 Overweight and obesity
CodeFirst obesity complicating pregnancy, childbirth and the puerperium, if applicable (O99.21-)
UseAdditionalCode code to identify body mass index (BMI), if known (Z68.-)
Excludes1 adiposogenital dystrophy (E23.6)
lipomatosis NOS (E88.2)
lipomatosis dolorosa [Dercum] (E88.2)
Prader-Willi syndrome (Q87.11)
E66.0 Obesity due to excess calories
E66.01 Morbid (severe) obesity due to excess calories
Excludes1 morbid (severe) obesity with alveolar hypoventilation (E66.2)
E66.09 Other obesity due to excess calories
invalidAdmission Yes
E66.1 Drug-induced obesity
UseAdditionalCode code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
invalidAdmission Yes
E66.2 Morbid (severe) obesity with alveolar hypoventilation
Obesity hypoventilation syndrome (OHS)
Pickwickian syndrome
E66.3 Overweight
E66.8 Other obesity
invalidAdmission Yes
E66.9 Obesity, unspecified
Obesity NOS
invalidAdmission Yes