E66.1Billable
Drug-induced obesity
- Chapter
- 4. Endocrine, nutritional and metabolic diseases
- Category
- E66
- Effective date
- October 1, 2026
Related codes in category E66
E66Overweight and obesityE66.0Obesity due to excess caloriesE66.01Morbid (severe) obesity due to excess caloriesYesE66.09Other obesity due to excess caloriesYesE66.2Morbid (severe) obesity with alveolar hypoventilationYesE66.3OverweightYesE66.8Other obesityE66.81Obesity classE66.811Obesity, class 1YesE66.812Obesity, class 2YesE66.813Obesity, class 3YesE66.89Other obesity not elsewhere classifiedYes
Frequently asked questions
What is ICD-10 code E66.1?
E66.1 is an ICD-10-CM diagnosis code for Drug-induced obesity.
Is E66.1 a billable code?
Yes. E66.1 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is E66.1 in?
E66.1 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.
When did E66.1 become effective?
E66.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to E66.1?
E66.1 belongs to category E66, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.