F50.84 — Rumination disorder in adults
F50.84 is a billable, specific ICD-10-CM code for rumination disorder in adults. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- rumination disorder in infancy and childhood (F98.21)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Rumination disorder in adults, in remission
Excludes1 inherited from the categories above F50.84
These are not written on F50.84, but they bind it: a note on a category applies to every code beneath it. Billing F50.84 with anything listed here is a denial.
Excludes2 inherited from the categories above F50.84
Also inherited, and the opposite of Excludes1: these conditions are not part of F50.84, but a patient can have both, so you may code both.
Other codes that can never be billed with F50.84
These codes carry an Excludes1 note pointing at F50.84. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F50.84 alone.
Risk adjustment
F50.84 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
F50.84 is named in 8 Medicare coverage policies — 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
- A56850Billing and Coding: Psychiatric Partial Hospitalization Programs
- A56937Billing and Coding: Psychiatry and Psychology Services
How F50.84 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F50.84.
- Rumination›in adults(in remission)
- Disorder›rumination›adult(in remission)
- Disorder›eating›rumination›adult(in remission)
Code history
What changed, and when. Derived by diffing consecutive CMS release files — which matters when you are defending a code assigned under an earlier edition.
- addedFY2024-FY2026
Rumination disorder in adults
Related codes at this level
Codes that share F50.8. If F50.84 is not quite right, the correct code is usually one of these.
Questions about F50.84
- Is F50.84 a billable ICD-10-CM code?
- Yes. F50.84 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does F50.84 sit in the tabular list?
- Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59).
- What cannot be coded together with F50.84?
- F50.84 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above F50.84 (F50) and apply to it just the same.