E66.8
⚠ Non-billable
Other obesity
ICD-10-CM · FY2026 · Endocrine, Nutritional and Metabolic Diseases
Code
E66.8
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Endocrine, Nutritional and Metabolic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code E66.8?
ICD-10-CM code E66.8 represents Other obesity. It is a non-billable header code requiring a more specific subcategory in the Endocrine, Nutritional and Metabolic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is E66.8 billable?
No. E66.8 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is E66.8 in?
E66.8 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.
Related codes in the E66 category
E66
Overweight and obesity
Non-billable
E66.0
Obesity due to excess calories
Non-billable
E66.1
Drug-induced obesity
Billable
E66.2
Morbid (severe) obesity with alveolar hypoventilation
Billable
E66.3
Overweight
Billable
E66.9
Obesity, unspecified
Billable
E66.01
Morbid (severe) obesity due to excess calories
Billable
E66.09
Other obesity due to excess calories
Billable
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