ICD-10 Code for Rumination
The ICD-10-CM code for rumination is R11.10 — Vomiting, unspecified. This is the code the Alphabetic Index gives for rumination with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
R11.10 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which rumination code should you use?
The Alphabetic Index lists 6 codes under Rumination. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| with nausea | R11.2 | Nausea with vomiting, unspecified | |
| disorder of infancy or childhood | F98.21 | Rumination disorder of infancy and childhood | |
| in adults | F50.84 | Rumination disorder in adults | |
| neurotic | F42.8 | Other obsessive-compulsive disorder | |
| newborn | P92.1 | Regurgitation and rumination of newborn | |
| obsessional | F42.8 | Other obsessive-compulsive disorder | |
| psychogenic | F42.8 | Other obsessive-compulsive disorder |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources