Nausea and vomiting (R11) ICD-10-CM
The R11 code range covers nausea and vomiting with 11 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R11 Range 11 codes · 9 billable
- R11 Nausea and vomitingNon-billable
- R11.0 Nausea
- R11.1 VomitingNon-billable
- R11.10 Vomiting, unspecified
- R11.11 Vomiting without nausea
- R11.12 Projectile vomiting
- R11.13 Vomiting of fecal matter
- R11.14 Bilious vomiting
- R11.15 Cyclical vomiting syndrome unrelated to migraine
- R11.16 Cannabis hyperemesis syndrome New
- R11.2 Nausea with vomiting, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R11 range.
Nausea
An unpleasant sensation in the stomach usually accompanied by the urge to vomit. Common causes are early pregnancy, sea and motion sickness, emotional stress, intense pain, food poisoning, and various enteroviruses.
Postoperative Nausea and Vomiting
Emesis and queasiness occurring after anesthesia.
Vomiting
The forcible expulsion of the contents of the STOMACH through the MOUTH.
Vomiting, Anticipatory
Vomiting caused by expectation of discomfort or unpleasantness.
About the R11 Code Range
ICD-10 code section R11 covers conditions related to nausea and vomiting, including specific types and patterns such as nausea alone, different forms of vomiting, and cyclical vomiting syndrome. These codes are used to classify and report symptoms involving nausea and various vomiting presentations without attaching them to an underlying cause.
This section includes the general code R11 for combined nausea and vomiting, and more specific codes like R11.0 for nausea (also called postoperative or functional nausea) and R11.1 for vomiting. Coders will find distinct entries for vomiting subtypes, such as R11.11 for vomiting without nausea, R11.12 for projectile vomiting, R11.13 for vomiting fecal matter, and R11.14 for bilious or bile pigment vomiting. The code R11.15 identifies cyclical vomiting syndrome unrelated to migraines, characterized by persistent, uncontrollable vomiting episodes. When vomiting or nausea and vomiting are unspecified, codes like R11.10 or R11.2 apply. Recognizing synonyms like "postoperative nausea," "projectile vomiting," or "hyperemesis" when matching clinical documentation to these codes supports accurate coding and reporting of gastrointestinal symptoms.
Questions About This Page
How many billable codes are in the R11 range?
Of the 11 codes in this range, 9 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the R11 range classify?
The range classifies nausea and vomiting. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
