K21.9 GASTRO-ESOPHAGEAL REFLUX DISEASE WITHOUT ESOPHAGITIS

Code Information

  • Diagnosis Code: K21.9
  • Short Description: Gastro-esophageal reflux disease without esophagitis
  • Long Description: Gastro-esophageal reflux disease without esophagitis
  • Code Version: 2025 ICD-10-CM

The code K21.9 is VALID for claim submission

Code Classification

Synonyms

  • Acid reflux
  • Chalasia of lower esophageal sphincter
  • Diaphragmatic hernia with gastroesophageal reflux disease
  • Digestive system reflux
  • Duodenogastric reflux
  • Erosive gastro-esophageal reflux disease
  • Esophageal reflux finding
  • Esophageal reflux finding
  • Esophageal reflux finding
  • Esophageal reflux finding
  • Esophageal reflux finding
  • Excessive gastric reflux
  • Finding of esophageal function
  • Finding of esophageal function
  • Finding of esophageal function
  • Finding of esophageal function
  • Finding of esophageal function
  • Gastric reflux
  • Gastroesophageal reflux disease
  • Gastroesophageal reflux disease in pregnancy
  • Gastroesophageal reflux disease with apnea
  • Gastroesophageal reflux disease without esophagitis
  • Gastroesophageal reflux in child
  • Hiatal hernia with gastroesophageal reflux
  • Hiatal hernia with gastroesophageal reflux
  • Laryngitis due to gastroesophageal reflux
  • Laryngopharyngeal reflux
  • Minimal gastric reflux
  • Moderate gastric reflux
  • Non-erosive gastro-esophageal reflux disease
  • Paraesophageal hernia
  • Paraesophageal hernia with gastroesophageal reflux
  • Secondary hernia of abdomen
  • STAG1-related intellectual disability, facial dysmorphism, gastroesophageal reflux syndrome

Diagnostic Related Group(s)

The code K21.9 is grouped in the following Diagnostic Related Group(s) MS-DRG V42.0

  1. Esophagitis, Gastroenteritis And Miscellaneous Digestive Disorders With Mcc (391)
  2. Esophagitis, Gastroenteritis And Miscellaneous Digestive Disorders Without Mcc (392)

References to Index of Diseases and Injuries

The code K21.9 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Inclusion Terms:
    • Esophageal reflux NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
K21.9 Right Arrow 530.81 Esophageal reflux
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
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
This page was last updated on: 10/1/2024