2026 ICD-10-CM Diagnosis Code R11Nausea and vomiting

ICD-10-CM Codes›R00–R99›R10-R19›R11

ICD-10-CM R11
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R11 is a non-billable ICD-10-CM category code for nausea and vomiting, so it cannot be submitted on claims. Use a more specific code from this category instead, such as R11.0, R11.10, R11.11, and R11.12. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established.

Code Identity

ICD-10-CM Code
R11
Billable Status
No — Non-Billable Category
Code Describes
Nausea and vomiting
Chapter
R10-R19
Symptoms and signs involving the digestive system and abdomen

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR10-R19Symptoms and signs involving the digestive system and abdomen
CategoryR11Nausea and vomiting
This CodeR11Nausea and vomiting

Specific Coding for Nausea and vomitingOverview

Non-specific codes like R11 require more characters. Use one of these billable codes instead:

  • Use R11.0 for Nausea

  • R11.1 for Vomiting

  • Use R11.10 for Vomiting, unspecified

  • Use R11.11 for Vomiting without nausea

  • Use R11.12 for Projectile vomiting

  • Use R11.13 for Vomiting of fecal matter

  • Use R11.14 for Bilious vomiting

  • Use R11.15 for Cyclical vomiting syndrome unrelated to migraine

  • Use R11.16 for Cannabis hyperemesis syndrome

  • Use R11.2 for Nausea with vomiting, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • cyclical vomiting associated with migraine G43.A
  • excessive vomiting in pregnancy O21
  • hematemesis K92.0
  • neonatal hematemesis P54.0
  • newborn vomiting P92.0
  • psychogenic vomiting F50.89
  • vomiting associated with bulimia nervosa F50.2
  • vomiting following gastrointestinal surgery K91.0

Patient EducationClinical

Nausea and Vomiting

Nausea is when you feel sick to your stomach, as if you are going to throw up. Vomiting is when you throw up.

The full article covers:

  • What are nausea and vomiting?
  • What causes nausea and vomiting?
  • When do I need to see a health care provider for nausea and vomiting?
  • How is the cause of nausea and vomiting diagnosed?
  • What are the treatments for nausea and vomiting?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R11Overview

Is R11 (Nausea and vomiting) a billable code?

No. This is a category header that groups the codes for nausea and vomiting, and headers cannot be submitted on claims. Claims for nausea and vomiting need a more specific code from this category, such as R11.0, R11.10, and R11.11.

Can R11 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the nausea and vomiting is established, that condition takes the principal position instead.