K21.00
Billable codeGastro-esophageal reflux disease with esophagitis, without bleeding
The ICD-10 code for gastro-esophageal reflux disease with esophagitis, without bleeding is K21.00.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Reflux esophagitis
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K21.01Gastro-esophageal reflux disease with esophagitis, with bleeding
- K21.00Gastro-esophageal reflux disease with esophagitis, without bleeding
Associated MS-DRGs
K21.00 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 314Other Circulatory System Diagnoses with MCC
- DRG 315Other Circulatory System Diagnoses with CC
- DRG 316Other Circulatory System Diagnoses without CC/MCC
- DRG 391Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC
- DRG 392Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC