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 2027, 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
- 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.
Cannabinoid Hyperemesis Syndrome
Recurrent vomiting accompanied by nausea, abdominal pain and sometimes compulsive hot bathing behavior in chronic CANNABIS abuse.
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.
Nausea and Vomiting
Expelling the contents of the stomach and the sensations associated with it. They are symptoms of an underlying disease or condition and not a specific illness.
Projectile Vomiting
Forceful expulsion of the contents of the stomach through the mouth.
Vomiting
The forcible expulsion of the contents of the STOMACH through the MOUTH.
About the R11 Code Range
Nausea is a sensation associated with vomiting, which expels stomach contents. Both are symptoms of an underlying disease or condition, not a specific illness.
R11.0 identifies nausea. R11.1 branches into types of vomiting, while R11.2 identifies nausea with vomiting when no further detail is specified.
The vomiting branch distinguishes unspecified vomiting from vomiting without nausea, projectile vomiting, vomiting of fecal matter, and bilious vomiting. It also identifies R11.15 for cyclical vomiting syndrome unrelated to migraine and R11.16 for cannabis hyperemesis syndrome.
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, 2026 through September 30, 2027. 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 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
