ICD-10

ICD-10 code K21

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- ICD-10-CM
TABULAR LIST of DISEASES and INJURIES
- K00-K95
Diseases of the digestive system
- K20-K31
Diseases of esophagus, stomach and duodenum

K21

Gastro-esophageal reflux disease

ICD-10 code K21 for Gastro-esophageal reflux disease

Excludes1: newborn esophageal reflux (P78.83)
K21.0
Gastro-esophageal reflux disease with esophagitis
K21.9
Gastro-esophageal reflux disease without esophagitis
ICD-10
ATC
ICD-10 International Statistical Classification of Diseases and Related Health Problems 10th Revision
ICD-10

ICD-10 is the 10th revision of the International Statistical Classification of Diseases and Related Health Problems (ICD), a medical classification list by the World Health Organization (WHO).

It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases.

ATC

The Anatomical Therapeutic Chemical (ATC) Classification System is used for the classification of active ingredients of drugs according to the organ or system on which they act and their therapeutic, pharmacological and chemical properties.

It is controlled by the World Health Organization Collaborating Centre for Drug Statistics Methodology (WHOCC).

DDD

The defined daily dose (DDD) is a statistical measure of drug consumption, defined by the World Health Organization (WHO).

It is used to standardize the comparison of drug usage between different drugs or between different health care environments.

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