sleep apnea obstructive sleep apnea 2014-03-20T03:57:22Z A sleep apnea that is characterized by repeated collapse and obstruction of the upper airway during sleep, which results in reduced airflow (hypopnea) or complete airflow cessation (apnea), oxygen desaturation, and arousals from sleep. DOID:0050848 ICD10CM:G47.3 ICD9CM:327.23 MSH:D012891 OMIM:107650 Xref MGI. disease_ontology lschriml obstructive sleep apnea syndrome