ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
chapter 11 K00-K95 Diseases of the digestive system /
K20-K31 Diseases of esophagus, stomach and duodenum /
K21 Gastro-esophageal reflux disease
Billable ICD-10-CM Code K21.00
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K21.00
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Gastro-esophageal reflux disease with esophagitis, without bleeding
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| Reflux esophagitis |