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ICD-10 diagnosis code

K21.9 Gastro-oesophageal reflux disease without oesophagitis

This page in Swedish

K21.9 is the ICD-10 code for Gastro-oesophageal reflux disease without oesophagitis. It is a four-character subcategory of K21 (Gastro-oesophageal reflux disease), the most specific level in the WHO edition. It belongs to the block K20–K31 (Diseases of oesophagus, stomach and duodenum) in Chapter XI, Diseases of the digestive system.

Code type
Subcategory (4 characters)
Chapter
XI · K00–K93
Classification
WHO ICD-10, 2019 version

What K21.9 includes

Conditions and terms that are coded here.

  • Oesophageal reflux NOS

K21.9 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

K21.9Gastroesofageal refluxsjukdom utan esofagit

NorwayICD-10-NO

K21.9Gastroøsofageal reflukssykdom uten øsofagitt

DenmarkICD-10-DK

DK219Gastro-øsofagal refluks uden øsofagitis

  • DK219ASøvnrelateret gastro-øsofagal refluks
  • DK219BGastro-øsofagal refluks UNS
FinlandICD-10-FI

K21.9Ruokatorven refluksisairaus ilman ruokatorvitulehdusta

GermanyICD-10-GM

K21.9Gastroösophageale Refluxkrankheit ohne Ösophagitis

FranceICD-10-FR

K21.9Reflux gastroœsophagien sans œsophagite

NetherlandsICD-10-NL

K21.9gastro-oesofageale reflux zonder oesofagitis

United StatesICD-10-CM

K21.9Gastro-esophageal reflux disease without esophagitis

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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