F98.21

Billable

Rumination disorder of infancy and childhood

F98.21 is the ICD-10-CM code for Rumination disorder of infancy and childhood. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
F01-F99
Parent
F98.2
Edition
FY2026

F01-F99 Mental, Behavioral and Neurodevelopmental disorders

What this means — in plain language

MedlinePlus · NIH

Food provides the energy and nutrients that babies need to be healthy. For a baby, breast milk is best. It has all the necessary vitamins and minerals. Infant formulas are available for babies whose mothers are not able to or decide not to breastfeed. Infants are usually ready to eat solid foods at about 6 months of age. Check with your health care provider for the best time for your baby to start. If you introduce…

Read more about Infant and Newborn Nutrition at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Rumination disorder in infancy or childhood, in remission

Excludes1 — not coded here

  • rumination disorder in adults (F50.84)

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code F98.21?
F98.21 is the ICD-10-CM code for "Rumination disorder of infancy and childhood". It falls under F01-F99 Mental, Behavioral and Neurodevelopmental disorders.
Is F98.21 a billable code?
Yes — F98.21 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from F98.21?
Excludes1 (not coded here): rumination disorder in adults (F50.84).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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