ICD-10-CM 2027
ICD-10 code for Regurgitation
From the official ICD-10-CM alphabetic index entry “Regurgitation”. Page updated September 29, 2026.
About coding Regurgitation
The ICD-10-CM code for Regurgitation is R11.10 (Vomiting, unspecified). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R11.10.
Within R11.1, choose R11.10 (unspecified) only when documentation doesn't support a more specific option: without nausea (R11.11), Projectile vomiting (R11.12), of fecal matter (R11.13), Bilious vomiting (R11.14), Cyclical vomiting syndrome unrelated to migraine (R11.15) and cannabis hyperemesis syndrome (R11.16).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 391 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC, relative weight 1.2392) and DRG 392 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC, relative weight 0.7645), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Regurgitation codes (official index)
- aortic (valve)
- food
- with reswallowing
- newborn P92.1 — Regurgitation and rumination of newborn
- gastric contents
- heart
- mitral (valve)
- congenital Q23.3 — Congenital mitral insufficiency
- myocardial
- pulmonary (valve) (heart) I37.1 — Nonrheumatic pulmonary valve insufficiency
- congenital Q22.2 — Congenital pulmonary valve insufficiency
- syphilitic A52.03 — Syphilitic endocarditis
- tricuspid
- valve, valvular
- congenital Q24.8 — Other specified congenital malformations of heart
- vesicoureteral
Common questions about Regurgitation ICD-10 codes
What is the ICD-10 code for Regurgitation?
- R11.10 — Vomiting, unspecified. More specific codes apply when the documentation supports them: P92.1, Q23.3, I37.1, Q22.2 and others below.
What is the ICD-10 code for pulmonary regurgitation?
- I37.1 — Nonrheumatic pulmonary valve insufficiency.
Is R11.10 billable?
- Yes. R11.10 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R11.10 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R11.10 as a principal diagnosis.
Is R11.10 a CC or MCC?
- No. R11.10 is neither a CC nor an MCC under MS-DRG v44.0.