K20.80 vs K21.0
K20.80 (Other esophagitis without bleeding) compared with K21.0 (Gastro-esophageal reflux disease with esophagitis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K20.80 carries an Excludes1 note covering K21.0: “esophagitis with gastro-esophageal reflux disease (K21.0-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. K20.80 carries an Excludes1 note covering K21.0: “reflux esophagitis (K21.0-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| K20.80Other esophagitis without bleeding | K21.0Gastro-esophageal reflux disease with esophagitis | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Other esophagitis without bleeding is a billable ICD-10-CM diagnosis code (K20.80). | Gastro-esophageal reflux disease with esophagitis is a non-billable ICD-10-CM category code (K21.0). |
| Includes | Abscess of esophagus Other esophagitis NOS | — |
| Use additional code | code to identify: alcohol abuse and dependence (F10.-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources