K21Non-billable (header)

Gastro-esophageal reflux disease

Related Codes· Diseases of esophagus, stomach and duodenum (K20-K31)

K20EsophagitisK22Other diseases of esophagusK23Disorders of esophagus in diseases classified elsewhereK25Gastric ulcerK26Duodenal ulcerK27Peptic ulcer, site unspecified

Sub-codes of K21(2)

K21 is a non-billable header. Select a sub-code to bill.

K21.0Gastro-esophageal reflux disease with esophagitisHeaderK21.9Gastro-esophageal reflux disease without esophagitis✓ Billable

✗ Excludes 1(Not coded here)

  • •newborn esophageal reflux (P78.83)

Code Hierarchy

┌11Diseases of the digestive system (K00-K95)├K20-K31Diseases of esophagus, stomach and duodenum (K20-K31)├K21Gastro-esophageal reflux disease
└K21Gastro-esophageal reflux disease

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