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

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

K21.9 is a billable ICD code used to specify a diagnosis of gastro-esophageal reflux disease without esophagitis. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code K21 is used to code Gastroesophageal reflux disease

Gastroesophageal reflux disease (GERD), gastro-oesophageal reflux disease (GORD), gastric reflux disease, acid reflux disease, or reflux (in babies and young children) is a chronic condition of mucosal damage caused by stomach acid coming up from the stomach into the esophagus (chronic reflux). Occasional reflux causes heartburn, but chronic reflux leads to reflux esophagitis, GERD, and sometimes Barrett esophagus.

Specialty: Gastroenterology
MeSH Code: D005764
ICD 9 Code: 530.81

X-ray showing radiocontrast agent injected into the stomach entering the esophagus due to severe reflux

Source: Wikipedia

Coding Notes for K21.9 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Esophageal reflux NOS

MS-DRG Mapping

  • DRG Group #391-392 - Esophagitis, gastroent and misc digest disorders with MCC.
  • DRG Group #391-392 - Esophagitis, gastroent and misc digest disorders without MCC.

Related Concepts SNOMET-CT

  • Esophageal reflux finding (finding)
  • Gastroesophageal reflux disease with apnea (disorder)
  • Hiatal hernia with gastroesophageal reflux disease (disorder)

ICD-10-CM Alphabetical Index References for 'K21.9 - Gastro-esophageal reflux disease without esophagitis'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code K21.9. Click on any term below to browse the alphabetical index.

Reflux (K21.9)
GERD(gastroesophageal reflux disease) (K21.9)
Cardiochalasia (K21.9)
Chalasia(cardiac sphincter) (K21.9)

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Esophageal reflux (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 530.81 was previously used, K21.9 is the appropriate modern ICD10 code.


Parent Code: K21 - Gastro-esophageal reflux disease

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/K219