F50.84
Rumination disorder in adults
F50.84 (also written F5084) is a billable ICD-10-CM diagnosis code for rumination disorder in adults. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 30 codes in category F50 (Eating disorders). The Alphabetic Index lists it under 3 entries. Its coding notes include 4 Excludes1 entries and 3 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
- rumination disorder in infancy and childhood (F98.21)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (1 note)
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the Behavioral Health clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026IPF Primary
IPF MS-DRG adjustment. A principal diagnosis of this code groups to this MS-DRG:
| MS-DRG | Description | Factor |
|---|---|---|
| 887 | Other mental disorder diagnoses | 1.00 |
IPF Comorbidity
On the CMS IPF comorbidity list.
| Comorbidity category | Factor |
|---|---|
| Eating Disorders | 1.09 |
Includes
Further defines or gives examples of the content of the category.
Also from chapter/block level (1 note)
- disorders of psychological development
Inclusion terms
Conditions classified to this code.
- Rumination disorder in adults, in remission
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 3 entries