K21.00ICD-10-CM

Gastro-esophageal reflux disease with esophagitis, without bleeding

Billable

Chapter

K00-K95

Digestive system

Billable

Yes

Valid as submitted on a claim line

Common pairings

2 CPT codes

43239, 43235

What the documentation has to carry

Requires endoscopic or provider-documented esophagitis. Symptom reports alone support K21.9.

Commonly paired CPT codes

4323943235

Pairings are typical, not a coverage determination. Check the payer policy for the line.

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before the payer does

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This page is a free reference for billing and coding teams and is not coding, legal, or clinical advice. Code selection depends on the documentation in the record and on the policy of the payer being billed. Verify every code, instructional note, and sequencing rule against the current ICD-10-CM files and the Official Guidelines for Coding and Reporting for the applicable date of service. ICD-10-CM is maintained by the CDC's National Center for Health Statistics and published by CMS. CPT is a registered trademark of the American Medical Association. TruCare is not affiliated with CMS, NCHS, the AHA, or the AMA.

Gastro-esophageal reflux disease with esophagitis, without bleeding

What the documentation has to carry

Find the specificitybefore the payer does

Find the specificity
before the payer does