K21.00 Gastro-esophageal reflux disease with esophagitis, without bleeding
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Gastro-esophageal reflux disease with esophagitis, without bleeding
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Also covers
- Reflux esophagitis
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- newborn esophageal reflux (P78.83)
Excludes2
Not part of this code, but both can be coded when both are documented.
- hiatus hernia (K44.-)
Related codes
Common questions
Is K21.00 a billable code?
Yes. K21.00 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.