ICD-11 MMS

21 Symptoms, signs or clinical findings, not elsewhere classified

Symptoms, signs or clinical findings of the respiratory system  (MD10-MD6Y)

Symptoms or signs involving the respiratory system  (MD10-MD3Y)

MD11 Abnormalities of breathing

MD11.8 Mouth breathing

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01


Breathing through mouth. Nasal obstruction may also necessitate mouth breathing, which itself can precipitate obstructive apnoea. Breathing through the mouth may also increase risk for OSA by its effect on the tongue. The tongue forms the anterior wall of the oropharynx; both the supine posture and opening of the mouth tend to displace it posteriorly and encourage airway closure.

exclusions

sections/codes in this section (MD11.8-MD11.8)

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