F98.21: Rumination disorder of infancy and childhood
F98.21 is the billable ICD-10-CM diagnosis code for Rumination disorder of infancy and childhood. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code F98.21?
F98.21 is the ICD-10-CM diagnosis code for Rumination disorder of infancy and childhood. It belongs to category F98 (Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence).
Is F98.21 a billable code?
Yes. F98.21 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does F98.21 belong to?
F98.21 is part of ICD-10-CM category F98 — Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence, which has 18 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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