ICD-10 Code F50.01 – Anorexia nervosa, restricting type (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F50.01 – Anorexia nervosa, restricting type
What it is
F50.01 identifies anorexia nervosa, restricting type. Use it when the record shows persistent restriction of food intake with no regular binge-eating or purging behavior.
Clinical signs
Typical findings include markedly low body weight, intense fear of gaining weight, and distorted body image or denial of severity. Clinical features vary; refer to documentation.
When to use this code
Use F50.01 when the clinician documents anorexia nervosa with a restricting pattern as the current subtype. It also fits when the note clearly states restriction without bingeing or purging. If the subtype is not specified, check documentation before coding.
Do not use for
Do not use this code for anorexia due to another medical condition, medication effect, or unspecified eating disorder. Do not assign it when binge-eating or purging behavior is documented instead.
Coding tip
Match the subtype exactly to the provider’s wording; if the record does not clearly state restricting type, query or check documentation.