Is F50.0 a billable ICD-10-CM code?

No. In the FY2027 ICD-10-CM code set (effective October 1, 2026), F50.0 is a category header and is not billable on its own. F50.00 (Anorexia nervosa, unspecified) is billable. F50.01 (restricting type) and F50.02 (binge eating/purging type) are also headers since FY2025: claims use a 6-character code that adds severity or remission, such as F50.011 (restricting type, moderate) or F50.024 (binge eating/purging type, in remission). The full list is in the Billing note below.

What is ICD-10 code F50.0?

F50.0 is the ICD-10-CM parent category for Anorexia Nervosa. Billable codes are F50.00 (unspecified) and the 6-character codes under F50.01 (restricting type) and F50.02 (binge eating/purging type), which add severity or remission. The clinical presentation is characterized by restriction of energy intake leading to significantly low body weight, intense fear of weight gain, and disturbance in body weight/shape experience.

What are the diagnostic criteria for F50.0?

DSM-5-TR Anorexia Nervosa requires: (A) restriction of energy intake leading to significantly low body weight in the context of age, sex, developmental trajectory, and physical health; (B) intense fear of gaining weight or becoming fat, or persistent behavior interfering with weight gain; (C) disturbance in the way one's body weight or shape is experienced, undue influence of body weight/shape on self-evaluation, OR persistent lack of recognition of seriousness of low weight.

What is the difference between F50.01 and F50.02?

F50.01 Restricting Type: during the last 3 months, weight loss has been accomplished primarily through dieting, fasting, and/or excessive exercise without recurrent binge eating or purging. F50.02 Binge Eating/Purging Type: during the last 3 months, recurrent episodes of binge eating or purging behavior have occurred (self-induced vomiting, laxatives, diuretics, enemas).

What scale is used to screen for F50.0?

The Eating Disorder Examination Questionnaire (EDE-Q) is the most comprehensive 28-item self-report. The Eating Attitudes Test (EAT-26) is a brief 26-item screener with a cutoff of 20+ indicating likely eating disorder. The SCOFF Questionnaire (5 yes/no items) is a primary care screener for any eating disorder. A positive screen warrants a full clinical evaluation including medical assessment.

How is severity classified for F50.0?

DSM-5-TR severity for adults is based on current BMI: Mild BMI ≥17.0, Moderate BMI 16.0–16.99, Severe BMI 15.0–15.99, Extreme BMI <15.0. For children/adolescents, severity is based on BMI percentile. Severity may be increased to reflect clinical symptoms, functional disability, and need for supervision regardless of BMI.

F50.0ICD-10-CMAnorexia Nervosa

Official ICD-10-CM descriptor: Anorexia nervosa · Category header, not billable: use a more specific code

Restriction of energy intake leading to significantly low body weight, with intense fear of weight gain and disturbance in body weight or shape experience.

F50.0 at a glance

ICD-10-CM F50.0
Eating
Category header, not billable: use a more specific code
Recommended screener
Eating Disorder Examination Questionnaire (EDE-Q)
Assessment library
Billing the screening
In the US, administering and scoring the scale usually bills under CPT 96127; the session itself under 90791 or 90834/90837. Coverage varies by payer.

Billing note

F50.0 is the parent category under U.S. ICD-10-CM and is not billable on its own. Since FY2025, F50.01 and F50.02 are also category headers. In the FY2027 code set (effective October 1, 2026), the billable codes are:

F50.00, Anorexia nervosa, unspecified (use when the subtype is not yet documented)
F50.010 to F50.014, F50.019, Anorexia nervosa, restricting type: mild, moderate, severe, extreme, in remission, unspecified
F50.020 to F50.024, F50.029, Anorexia nervosa, binge eating/purging type: mild, moderate, severe, extreme, in remission, unspecified

The sixth character carries the DSM-5-TR severity level (from current BMI in adults), so record it in the chart. This page covers the parent category and shared diagnostic criteria. The Subtypes section below documents the criteria that distinguish F50.01- from F50.02- over the most recent 3-month window.

DSM-5-TR diagnostic criteria summary

Anorexia Nervosa requires:

Criterion A, Restriction of energy intake relative to requirements, leading to significantly low body weight in the context of age, sex, developmental trajectory, and physical health.
Criterion B, Intense fear of gaining weight or becoming fat, or persistent behavior that interferes with weight gain, even at significantly low weight.
Criterion C, Disturbance in the way one's body weight or shape is experienced, undue influence of body weight/shape on self-evaluation, OR persistent lack of recognition of the seriousness of the current low body weight.

Subtypes (last 3 months):

F50.01 Restricting Type, weight loss accomplished primarily through dieting, fasting, and/or excessive exercise, without recurrent binge eating or purging.
F50.02 Binge Eating/Purging Type, recurrent episodes of binge eating or purging behavior (self-induced vomiting, laxatives, diuretics, enemas).

Severity (adults, by BMI): Mild ≥17.0, Moderate 16.0–16.99, Severe 15.0–15.99, Extreme <15.0.

Source: American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR), p. 372–381.

Differential diagnosis

F50.2 Bulimia Nervosa, recurrent binge eating + compensation WITHOUT significantly low body weight; F50.0 binge-purge subtype shares behaviors but adds the low-weight criterion.
F50.81 Binge Eating Disorder, recurrent binge eating WITHOUT compensatory behaviors and without significantly low weight.
F50.89 Other Specified Feeding/Eating Disorder (Atypical Anorexia), meets all anorexia criteria EXCEPT the significantly low body weight; equally medically serious.
F50.82 Avoidant/Restrictive Food Intake Disorder (ARFID), restrictive eating without weight/shape concerns (sensory aversions, fear of choking, lack of interest in food).
F33, F32 Major Depressive Disorder, appetite/weight loss in depression lacks the body image disturbance.
Medical conditions, celiac disease, inflammatory bowel disease, malignancy, hyperthyroidism, addisons disease, must be ruled out.

Common comorbidities

Anorexia Nervosa has very high lifetime psychiatric comorbidity. Common co-occurring conditions: Major Depressive Disorder (F33, F32), Generalized Anxiety Disorder (F41.1), Obsessive-Compulsive Disorder (F42.2, particularly common), Substance Use Disorders (F10–F19), and personality disorders. Medical comorbidities are also serious and require integrated treatment: cardiac arrhythmias, electrolyte disturbances, osteoporosis, amenorrhea, gastrointestinal complications.

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Frequently asked questions

Is F50.0 a billable ICD-10-CM code?
No. In the FY2027 ICD-10-CM code set (effective October 1, 2026), F50.0 is a category header and is not billable on its own. F50.00 (Anorexia nervosa, unspecified) is billable. F50.01 (restricting type) and F50.02 (binge eating/purging type) are also headers since FY2025: claims use a 6-character code that adds severity or remission, such as F50.011 (restricting type, moderate) or F50.024 (binge eating/purging type, in remission). The full list is in the Billing note below.
What is ICD-10 code F50.0?
F50.0 is the ICD-10-CM parent category for Anorexia Nervosa. Billable codes are F50.00 (unspecified) and the 6-character codes under F50.01 (restricting type) and F50.02 (binge eating/purging type), which add severity or remission. The clinical presentation is characterized by restriction of energy intake leading to significantly low body weight, intense fear of weight gain, and disturbance in body weight/shape experience.
What are the diagnostic criteria for F50.0?
DSM-5-TR Anorexia Nervosa requires: (A) restriction of energy intake leading to significantly low body weight in the context of age, sex, developmental trajectory, and physical health; (B) intense fear of gaining weight or becoming fat, or persistent behavior interfering with weight gain; (C) disturbance in the way one's body weight or shape is experienced, undue influence of body weight/shape on self-evaluation, OR persistent lack of recognition of seriousness of low weight.
What is the difference between F50.01 and F50.02?
F50.01 Restricting Type: during the last 3 months, weight loss has been accomplished primarily through dieting, fasting, and/or excessive exercise without recurrent binge eating or purging. F50.02 Binge Eating/Purging Type: during the last 3 months, recurrent episodes of binge eating or purging behavior have occurred (self-induced vomiting, laxatives, diuretics, enemas).
What scale is used to screen for F50.0?
The Eating Disorder Examination Questionnaire (EDE-Q) is the most comprehensive 28-item self-report. The Eating Attitudes Test (EAT-26) is a brief 26-item screener with a cutoff of 20+ indicating likely eating disorder. The SCOFF Questionnaire (5 yes/no items) is a primary care screener for any eating disorder. A positive screen warrants a full clinical evaluation including medical assessment.
How is severity classified for F50.0?
DSM-5-TR severity for adults is based on current BMI: Mild BMI ≥17.0, Moderate BMI 16.0–16.99, Severe BMI 15.0–15.99, Extreme BMI <15.0. For children/adolescents, severity is based on BMI percentile. Severity may be increased to reflect clinical symptoms, functional disability, and need for supervision regardless of BMI.

Sources

1. 1.American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR), F50.0, p. 372–381.
2. 2.Garner, D. M., Olmsted, M. P., Bohr, Y., & Garfinkel, P. E. (1982). The Eating Attitudes Test: Psychometric features. Psychological Medicine, 12(4), 871–878.
3. 3.Centers for Disease Control and Prevention. ICD-10-CM Official Coding Guidelines.