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ICD-10-CM Codes K00-K95 K20-K31 K21

ICD-10-CM Diagnosis Code K21

Gastro-esophageal reflux disease

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Excludes-1 for K21:

  • newborn esophageal reflux (P78.83)

Codes Hierarchy:

    • K21  Gastro-esophageal reflux disease
      • K21.0 Gastro-esophageal reflux disease with esophagitis
        • K21.00  Gastro-esophageal reflux disease with esophagitis, without bleeding
        • K21.01  Gastro-esophageal reflux disease with esophagitis, with bleeding
      • K21.9  Gastro-esophageal reflux disease without esophagitis