K21.00
K21.00: Gastro-esophageal reflux disease with esophagitis, without bleeding
Billable / specific codeICD-10-CM
K21.00 is a billable, specific ICD-10-CM code for gastro-esophageal reflux disease with esophagitis, without bleeding. It is valid for submission on a claim.
Check K21.00 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Reflux esophagitis
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
K21.00 is named in 18 Medicare coverage policies: 14 listing it as supporting medical necessity, and 4 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A59015Billing and Coding: MolDX: Molecular Testing for Detection of Upper Gastrointestinal Metaplasia, Dysplasia, and Neoplasianot covered
- A59032Billing and Coding: MolDX: Molecular Testing for Detection of Upper Gastrointestinal Metaplasia, Dysplasia, and Neoplasianot covered
- A59051Billing and Coding: MolDX: Molecular Testing for Detection of Upper Gastrointestinal Metaplasia, Dysplasia, and Neoplasianot covered
- A59121Billing and Coding: MolDX: Molecular Testing for Detection of Upper Gastrointestinal Metaplasia, Dysplasia, and Neoplasianot covered
Alphabetic index entries that lead here
- Esophagitis›due to gastrointestinal reflux disease(without bleeding)
- Esophagitis›reflux
- Disease, diseased›gastroesophageal reflux›with esophagitis(without bleeding)
- Reflux›esophageal›with esophagitis(without bleeding)
- Reflux›gastroesophageal›with esophagitis(without bleeding)
- Allergy, allergic›milk protein›gastroesophageal reflux›with esophagitis(without bleeding)
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative›esophagus›due to›gastrointestinal reflux disease(without bleeding)
The condition this code belongs to
Code history
Unchanged in every release from FY2024 to FY2027.