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v1.0.0
ICD-10 Guide
ICD-10 CodesK21.0

K21.0

Non-billable

Gastro-esophageal reflux disease with esophagitis

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 K21.0 is a used to indicate a diagnosis of gastro-esophageal reflux disease with esophagitis.

Key Diagnostic Point:

Gastro-esophageal reflux disease (GERD) with esophagitis is a chronic condition where stomach acid flows back into the esophagus, causing inflammation. Symptoms include heartburn, regurgitation, and difficulty swallowing. Diagnosis is typically made through endoscopy and pH monitoring. Treatment options include lifestyle modifications, medications to reduce acid production, and in severe cases, surgical interventions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • chronic management
  • potential complications

Audit Risk Factors

    Specialty Focus

    Related ICD-10 Codes

    Related CPT Codes

    43246CPT Code

    Clinical Scenario

    Documentation Requirements

    ICD-10 Impact

    Diagnostic & Documentation Impact

    Enhanced Specificity

    ICD-10 Improvements

    GERD can significantly impact quality of life and lead to serious complications if not managed effectively.

    ICD-9 vs ICD-10

    GERD can significantly impact quality of life and lead to serious complications if not managed effectively.

    Reimbursement & Billing Impact

    GERD can significantly impact quality of life and lead to serious complications if not managed effectively.

    Resources

    Clinical References

    • •
      GERD Management Guidelines

    Coding & Billing References

    • •
      GERD Management Guidelines

    Frequently Asked Questions

    What lifestyle changes can help manage GERD?

    Avoiding trigger foods, eating smaller meals, and not lying down after eating can help.

    What are the potential complications of untreated GERD?

    Complications can include esophagitis, strictures, and Barrett's esophagus.