ICD-10 Code E66.8 – Other Obesity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E66.8 – Other obesity
What it is
E66.8 is used for obesity that does not fit a more specific ICD-10 obesity category. It identifies excess body fat when the record documents another type of obesity, but not morbid or unspecified obesity.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include elevated body mass index, increased adiposity, and obesity-related functional limitation, but the chart should support the specific obesity type.
When to use this code
Use E66.8 when the clinician documents obesity with a qualifying description that is not captured by a more specific code. It is appropriate when the note clearly supports “other obesity” and no alternate obesity code applies. Check documentation if the wording is vague.
Do not use for
Do not use this code for morbid obesity, unspecified obesity, or obesity due to excess calories when a more specific code is documented. If the record does not clearly identify another obesity type, check documentation.
Coding tip
Code the most specific obesity term documented, and query if the provider’s wording does not clearly support E66.8.