Obesity, class 3

This code signifies severe obesity, characterized by a Body Mass Index (BMI) of 40 or greater, or a BMI of 35 or greater with significant obesity-related comorbidities. It indicates a chronic metabolic condition with substantial health implications.

Apply this code when documentation clearly states a diagnosis of Class 3 obesity or morbid obesity, often supported by a calculated BMI of 40+ kg/m² or 35+ kg/m² with associated conditions like diabetes or hypertension. This is frequently seen in bariatric surgery evaluations, weight management programs, and chronic disease management.

• Always ensure the physician's documentation explicitly states "Class 3 obesity," "morbid obesity," or provides a BMI calculation that meets the criteria.
• Do not use this code for unspecified obesity or overweight conditions; specific BMI categories have their own codes.
• Code any associated obesity-related comorbidities (e.g., type 2 diabetes, obstructive sleep apnea) in addition to this code.