F50.20

HCC Category Mapping

What This Code Means

Bulimia nervosa is an eating disorder characterized by repeated episodes of binge eating followed by compensatory behaviors such as self-induced vomiting, excessive exercise, or laxative abuse to prevent weight gain. The 'unspecified' designation indicates that the specific subtype or severity details are not documented.

Coding Tips

• •Verify documentation for subtype specificity - if the record indicates purging type (F50.21) or non-purging type (F50.22), use the more specific code rather than the unspecified code
• •Ensure the diagnosis is clearly documented as bulimia nervosa and not another eating disorder; review for any associated complications (electrolyte imbalances, dental erosion) that may require additional codes

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. Unspecified severity indicates bulimia nervosa is diagnosed but the frequency of compensatory behaviors has not been documented. 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 (Frequency not specified)
• ✓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