ICD-10 Code F50.84 – Rumination disorder in adults (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F50.84 – Rumination disorder in adults
What it is
F50.84 identifies rumination disorder in adults, a feeding and eating disorder marked by repeated regurgitation of food after eating. The material may be rechewed, reswallowed, or spit out.
Clinical signs
Typical findings include effortless regurgitation soon after meals, without nausea, retching, or an obvious gastrointestinal cause. Clinical features vary; refer to documentation for timing, frequency, and any associated weight loss or nutritional impact.
When to use this code
Use F50.84 when the record clearly documents rumination disorder in an adult and the provider has diagnosed the condition. It may be supported by repeated postprandial regurgitation and exclusion of another explanation. If the note only says “vomiting” or “reflux,” check documentation before coding.
Do not use for
Do not use this code for gastroesophageal reflux, self-induced vomiting, or regurgitation explained by another medical disorder. Check documentation when the chart does not clearly distinguish rumination from other causes.
Coding tip
Code only when the provider documents rumination disorder specifically; otherwise, query for clarification.