GERD (gastro-oesophageal reflux disease) ICD-10 code
The ICD-10-CM code for gerd (gastro-oesophageal reflux disease) is K21.9 — gastro-esophageal reflux disease without esophagitis. It is billable and valid for submission on a claim. There are 14 related codes, and which one you use depends on what the documentation supports.
Also written as acid reflux, reflux, gastroesophageal reflux.
The mistake coders make here
K21.9 is GERD without oesophagitis. If oesophagitis is documented, you need K21.0-, and whether there is bleeding splits it further (K21.00 vs K21.01).
All ICD-10-CM codes for gerd (gastro-oesophageal reflux disease)
9 of 14 are billable. Green means you can submit it as-is.
| Code | Use it when |
|---|---|
| K21.9 | Gastro-esophageal reflux disease without esophagitis |
| K21.00 | Gastro-esophageal reflux disease with esophagitis, without bleeding |
| K21.01 | Gastro-esophageal reflux disease with esophagitis, with bleeding |
| K21 | Gastro-esophageal reflux diseasenot billable on its own |
| K21.0 | Gastro-esophageal reflux disease with esophagitisnot billable on its own |
| P78.83 | Newborn esophageal reflux |
| K22.6 | Gastro-esophageal laceration-hemorrhage syndrome |
| T85.521 | Displacement of esophageal anti-reflux devicenot billable on its own |
| T85.521S | Displacement of esophageal anti-reflux device, sequela |
| T85.511 | Breakdown (mechanical) of esophageal anti-reflux devicenot billable on its own |
| T85.591 | Other mechanical complication of esophageal anti-reflux devicenot billable on its own |
| T85.511S | Breakdown (mechanical) of esophageal anti-reflux device, sequela |
| T85.521A | Displacement of esophageal anti-reflux device, initial encounter |
| T85.521D | Displacement of esophageal anti-reflux device, subsequent encounter |