ICD-10 codes for GERD
GERD coding turns on esophagitis and bleeding. K21.9 is common when reflux is documented without esophagitis; endoscopy or assessment can support more specific codes.
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Paste a note or record audio. Notat’s FactsContext™ engine extracts the raw clinical facts first, then suggests codes from that context so you can inspect the evidence before using anything.
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How to use this tool
1
Paste or dictate a de-identified clinical note — a few sentences is enough.
2
Press Get codes. The coding system is fixed on this page.
3
Review each suggested code and its evidence, then copy the codes you agree with.
Clinical note
Extracted codes
Evidence stays attached for review.
Paste a clinical note or load an example, then press Get codes. Suggestions appear here with the supporting evidence.
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GERD ICD-10 codes
Start with the primary code, then move to a more specific related code when the documentation supports it.
| Code | Description | System |
|---|---|---|
K21.9 | Gastro-esophageal reflux disease without esophagitis | ICD-10-CM |
K21.00 | GERD with esophagitis, without bleeding | ICD-10-CM |
K21.01 | GERD with esophagitis, with bleeding | ICD-10-CM |
R12 | Heartburn | ICD-10-CM |
K22.70 | Barrett's esophagus without dysplasia | ICD-10-CM |
How to choose the right code
Use K21.9 for GERD without esophagitis. Use K21.00 or K21.01 when esophagitis is documented, depending on bleeding. Use R12 for heartburn when GERD is not diagnosed.
Documentation example
“Three months of post-prandial burning and regurgitation, worse lying down. No dysphagia, weight loss, hematemesis, or melena. Assessment: gastro-esophageal reflux disease without alarm features; PPI trial started.”
Suggested:
Not direct transcript guessing
FactsContext extracts clinical facts first: diagnoses, symptoms, negatives, findings, test results, medications, and plan decisions.
Raw facts stay usable
The clinician can read and reuse the extracted medical context directly, independent of the generated note.
Built for review
AI suggestions are not a substitute for clinician judgment, payer rules, local coding policy, or the official code set.
FAQ
When do I use K21.00?
Use K21.00 when GERD with esophagitis is documented and there is no bleeding.
Can I code heartburn as GERD?
Only if the clinician diagnoses GERD. Otherwise heartburn alone is coded R12.
Can AI separate symptom and diagnosis?
Notat extracts symptoms, alarm features, endoscopy findings, and assessment as clinical facts, so the suggested code follows the documented diagnosis rather than a guess.
Related ICD-10 guides
Keep moving through the condition hub, or open the general medical coding guide for more coding systems and extractors.