Anorexia nervosa, binge eating/purging type, moderate

This code signifies a severe eating disorder characterized by a persistent restriction of energy intake leading to significantly low body weight, an intense fear of gaining weight, and a disturbed perception of body shape or weight. Patients with this subtype engage in recurrent episodes of binge eating followed by compensatory behaviors such as self-induced vomiting, misuse of laxatives, diuretics, or enemas, or excessive exercise. The "moderate" specifier indicates a BMI between 16 and 16.99 kg/m².

Apply this code when documentation clearly indicates a diagnosis of anorexia nervosa with a binge eating/purging subtype and a Body Mass Index (BMI) falling within the moderate severity range (16-16.99 kg/m²). This code is appropriate for initial diagnoses, subsequent encounters, and when monitoring the progression or severity of the condition. Supporting documentation must include a psychiatric evaluation confirming diagnostic criteria and a recorded BMI.

• Ensure the documentation explicitly states "binge eating/purging type" and provides a BMI to support the "moderate" severity specifier.
• Do not confuse with F50.01 (restrictive type) or F50.022-F50.029 (other severity levels of binge eating/purging type).
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.