E66.89 Other obesity not elsewhere classified
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Other obesity not elsewhere classified
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes2
Not part of this code, but both can be coded when both are documented.
- adiposogenital dystrophy (E23.6)
- lipomatosis dolorosa [Dercum] (E88.2)
- lipomatosis NOS (E88.2)
- Prader-Willi syndrome (Q87.11)
Code first
Code the underlying condition first, then this code.
- obesity complicating pregnancy, childbirth and the puerperium, if applicable (O99.21-)
Use additional code
Add a second code for the following, when documented.
- code to identify body mass index (BMI), if known, for adults (Z68.1-Z68.45) or pediatrics (Z68.5-)
Related codes
E66.09Other obesity due to excess calories ICD-10-CME66.1Drug-induced obesity ICD-10-CME66.2Morbid (severe) obesity with alveolar hypoventilation ICD-10-CME66.3Overweight ICD-10-CME66.811Obesity, class 1 ICD-10-CME66.812Obesity, class 2 ICD-10-CME66.813Obesity, class 3 ICD-10-CME66.9Obesity, unspecified ICD-10-CM
Common questions
Is E66.89 a billable code?
Yes. E66.89 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.