2021 ICD-10-CM Code F98.21

Rumination disorder of infancy

Version 2021

Valid for Submission

F98.21 is a billable diagnosis code used to specify a medical diagnosis of rumination disorder of infancy. The code F98.21 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code F98.21 might also be used to specify conditions or terms like posseting, regurgitates after swallowing, regurgitation, rumination disorder, rumination disorder of infancy , swallowing pattern - finding, etc.

ICD-10:F98.21
Short Description:Rumination disorder of infancy
Long Description:Rumination disorder of infancy

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code F98.21 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert F98.21 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code F98.21 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Infant and Newborn Nutrition

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 one new food at a time, you will be able to identify any foods that cause allergies in your baby. Allergic reactions include a a rash, diarrhea, or vomiting.

Many parents are concerned about peanut allergies. When babies can eat foods that contain peanuts depends on their risk of food allergies:

There are some foods that you should avoid feeding your baby:


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)