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2025 ICD-10-CM code F50.00

Anorexia nervosa, unspecified. This code is used when the provider does not specify the type of anorexia nervosa (restricting type or binge eating/purging type).

Do not use F50.00 if the type of anorexia nervosa is specified. Use the most specific code available.

Medical necessity is established by the presence of clinically significant eating disorder behaviors and associated physical and psychological symptoms impacting the patient's health and well-being.Documentation should support the diagnosis and the need for intervention.

Diagnosis requires a comprehensive assessment including physical examination, patient history, personal/social behavior inquiry, and evaluation of signs and symptoms. Treatment may involve nutritional counseling, psychotherapy, medication, and even enteral nutrition in severe cases.

IMPORTANT:If the type of anorexia is known, use F50.01 (restricting type) or F50.02 (binge eating/purging type). Consider R63.0 for loss of appetite if not due to anorexia nervosa.

In simple words: This code is for someone diagnosed with anorexia nervosa, an eating disorder where a person is very afraid of gaining weight and severely restricts how much they eat, which can cause them to become dangerously underweight. The doctor hasn't specified what type of anorexia it is.

Anorexia nervosa is an eating disorder characterized by an intense fear of gaining weight, a distorted body image, and restriction of food intake leading to significantly low body weight.The "unspecified" designation is used when the clinician does not document whether the patient's anorexia is of the restricting type or binge-eating/purging type.

Example 1: A 16-year-old female presents with significant weight loss, amenorrhea, and a distorted body image, expressing intense fear of gaining weight, but the physician does not specify the subtype of anorexia., A 20-year-old male exhibits extreme weight loss, bradycardia, and electrolyte imbalance, admits to restricting food intake due to fear of weight gain, but the type of anorexia is not documented., A 17-year-old individual presents with severe weight loss and reports restrictive eating patterns but the healthcare provider has not yet determined if the individual engages in any purging behaviors.

Detailed history of eating habits, weight changes, body image concerns, menstrual history (if applicable), vital signs, physical exam findings, mental status assessment, and any related lab results (e.g., electrolyte levels).

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