ICD-10 · PDGM grouping
R11 Nausea and vomiting
All 9 codes in the R11 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
9
Can lead a claim
0
Cannot lead a claim
9
What CMS assigns to R11
None of the 9 codes is assigned a clinical group. None of the 9 is assigned a comorbidity subgroup. None can lead a claim.
Every code in R11
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| R11.0 | Nausea | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.1 Vomiting | ||||
| R11.10 | Vomiting, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.11 | Vomiting without nausea | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.12 | Projectile vomiting | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.13 | Vomiting of fecal matter | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.14 | Bilious vomiting | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.15 | Cyclical vomiting syndrome unrelated to migraine | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.16 | Cannabis hyperemesis syndrome | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| R11.2 | Nausea with vomiting, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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