21Symptoms, signs or clinical findings, not elsewhere classified Symptoms, signs or clinical findings of the digestive system or abdomen Symptoms or signs involving the digestive system or abdomen Symptoms related to the upper gastrointestinal tract
MD94
category
Halitosis
Definition Halitosis is an oral health condition in which one's mouth emits a foul odour. There are many causes of halitosis such as poor oral hygiene, tobacco and/or alcohol, and possibly a medical condition such as respiratory and digestive tract disorders.
Also indexed as
Halitosis bad breath breath odour breath smells offensive breath smells unpleasant fetid breath foul breath smelly breath stomatodysodia
Nearby in Symptoms related to the upper gastrointestinal tract
International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).
Release 2026-01.
View this entity in the official WHO ICD-11 browser .
This page reproduces WHO classification content for reference. It is not
medical advice and must not be used to diagnose or treat. For coding
decisions, consult the official release and your national coding guidelines.
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