ICD-10 Code
International Classification of Diseases, 10th Revision
Aug 22, 2017

See: Gastro-esophageal reflux disease

  ICD-10 Code for Gastro-esophageal reflux disease without esophagitis K21.9

K21.9 is a valid1 ICD 10 diagnosis code.

K21.9 is valid for submission for HIPAA-covered transactions.

Chapter 11 Diseases of the digestive system (K00-K95)
Section K20-K31 Diseases of esophagus, stomach and duodenum (K20-K31)
Category K21 Gastro-esophageal reflux disease

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• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.

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Inclusion Term
  • Esophageal reflux NOS
See also ICD 10 code for

Related Terms to “Gastro-esophageal reflux disease without esophagitis”

  • Allergy, allergic(reaction) (to) - T78.40
    • milk protein - Z91.011See also Allergy, food
      • gastroesophageal reflux - K21.9See also Reaction, adverse, food
  • Cardiochalasia - K21.9
  • Chalasia(cardiac sphincter) - K21.9
  • Disease, diseasedSee also Syndrome
    • gastroesophageal reflux(GERD) - K21.9
  • GERD(gastroesophageal reflux disease) - K21.9
  • Reflux - K21.9
    • acid - K21.9
    • esophageal - K21.9
    • gastroesophageal - K21.9
  • Relaxation
    • cardioesophageal - K21.9
See the 2017 ICD-10-CM Coding Guidelines.

Questions related to K21.9 Gastro-esophageal reflux disease without esophagitis

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.