Effective from
- Added
Rumination disorder in adults
Billable diagnosis code
CDC/NCHS · FY2025rumination disorder in infancy and childhood (F98.21)
Coverage depends on the payer, service and applicable policy. A billable code does not guarantee payment.
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗Grouping depends on the complete encounter and CMS grouper logic.
2026-04-01 – 2026-09-30
CMS · MS-DRG 43.1First observed · 2024-10-01
Latest recorded change · FY2025
Effective from
Rumination disorder in adults
Billable diagnosis code
CDC/NCHS · FY2025| All editions | Effective from | Code history |
|---|---|---|
| FY2025 | 2024-10-01 | Added |
| FY2025 · 04-01 | 2025-04-01 | No tabular change |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
Rumination disorder in adults, in remission
rumination disorder in infancy and childhood (F98.21)
disorders of psychological development
Historical assignments from the CDC conversion table support data retrieval. They do not authorize substituting a previous code for the current code.
Previous assignment: F50.89
Other entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| F50.81 | Binge eating disorder | Category · further specificity required |
| F50.82 | Avoidant/restrictive food intake disorder | Billable / specific |
| F50.83 | Pica in adults | Billable / specific |
| F50.89 | Other specified eating disorder | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗