Underweight BMI Below 18.5 kg/m²

Sibling codes

• XS2B – Obesity class III BMI greater than or equal to 40 kg/m²
• XS3Y – Obesity class I BMI 30.0–34.9 kg/m²
• XS43 – Normal weight BMI 18.5–24.9 kg/m²
• XS6N – Obesity class II BMI 35.0–39.9 kg/m²
• XS7R – Pre-obesity BMI 25.0–29.9 kg/m²

Foundation entity

Underweight BMI Below 18.5 kg/m² – http://id.who.int/icd/entity/483560274