ICD-10-CM 2027
ICD-10 code for nausea and vomiting
Confirmed by the official ICD-10-CM index entry “nausea (without vomiting) › with vomiting”. Page updated September 29, 2026.
About coding nausea and vomiting
The ICD-10-CM code for nausea and vomiting is R11.2 (Nausea with vomiting, unspecified). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R11.2.
It is also searched as nausea.
Within R11, choose R11.2 (Nausea with vomiting, unspecified) only when documentation doesn't support a more specific option: nausea (R11.0) and vomiting (R11.1).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 391 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC, relative weight 1.2392) and DRG 392 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC, relative weight 0.7645), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Related Nausea and vomiting codes
Common questions about nausea and vomiting ICD-10 codes
What is the ICD-10 code for nausea and vomiting?
- R11.2 — Nausea with vomiting, unspecified. More specific codes apply when the documentation supports them: R11.0, R11.10, R11.11, R11.12 and others below.
What is the ICD-10 code for nausea?
- R11.0 — Nausea.
What is the ICD-10 code for vomiting, unspecified?
- R11.10 — Vomiting, unspecified.
What is the ICD-10 code for vomiting without nausea?
- R11.11 — Vomiting without nausea.
What is the ICD-10 code for projectile vomiting?
- R11.12 — Projectile vomiting.
What is the ICD-10 code for vomiting of fecal matter?
- R11.13 — Vomiting of fecal matter.
What is the ICD-10 code for bilious vomiting?
- R11.14 — Bilious vomiting.
Is R11.2 billable?
- Yes. R11.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R11.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R11.2 as a principal diagnosis.
Is R11.2 a CC or MCC?
- No. R11.2 is neither a CC nor an MCC under MS-DRG v44.0.