ICD-10-CM > F01-F99 > F50-F59 > F50 > F50.0 > F50.01 > F50.012 F50.012 Anorexia nervosa, restricting type, severe Billable/Specific Copy Code Copy Description Applicable To Anorexia nervosa, restricting type, with a body mass index of 15.0-15.99 kg/m2