F50.21

HCC Category Mapping

What This Code Means

A mild eating disorder characterized by repeated cycles of eating large amounts of food followed by compensatory behaviors like vomiting or excessive exercise.

Coding Tips

• •Confirm that severity is documented as mild in the clinical record
• •Distinguish from binge eating disorder by the presence of compensatory purging behaviors

Clinical Significance

Bulimia nervosa involves recurrent episodes of binge eating followed by inappropriate compensatory behaviors (self-induced vomiting, laxative/diuretic misuse, fasting, excessive exercise) in a patient at normal or above-normal weight. Mild bulimia (1-3 compensatory episodes per week) still carries risk for electrolyte disturbances and dental erosion. Unlike anorexia nervosa, patients with bulimia are not significantly underweight, which can make the condition less visually apparent.

Documentation Requirements

• ✓Recurrent episodes of binge eating (consuming objectively large amounts of food with sense of loss of control)
• ✓Recurrent inappropriate compensatory behaviors to prevent weight gain (1-3 episodes of inappropriate compensatory behaviors per week)
• ✓Binge eating and compensatory behaviors occur at least once per week for three months
• ✓Self-evaluation unduly influenced by body shape and weight
• ✓Disturbance does not occur exclusively during episodes of anorexia nervosa (patient is NOT significantly underweight)

Commonly Confused Codes