ICD-10-CM 2027 diagnosis code
R11Nausea and vomiting
R11 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About R11
R11 is the ICD-10-CM diagnosis code for nausea and vomiting. It belongs to block R10-R19 (symptoms and signs involving the digestive system and abdomen) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: R11.0 (nausea), R11.1 (vomiting) and R11.2 (unspecified).
Don't report R11 together with the conditions in its Excludes1 note: cyclical vomiting associated with migraine (G43.A-), excessive vomiting in pregnancy (O21.-), hematemesis (K92.0), neonatal hematemesis (P54.0) and 4 more.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under R11
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to R11.
Broader instructions also apply from R10-R19 Symptoms and signs involving the digestive system and abdomen and Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
Codes whose notes reference R11
- P92.0Excludes1
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about R11
Is R11 billable?
- No. R11 is a header code. Report one of its more specific subcodes instead.