sleep apnea obstructive sleep apnea true NCI:C27168 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. lschriml Xref MGI. SNOMEDCT_US_2018_03_01:78275009 disease_ontology DOID:0050848 OMIM:107650 MESH:D020181 2014-03-20T03:57:22Z ICD9CM:327.23 ICD10CM:G47.33 obstructive sleep apnea syndrome NCI:C116337 https://www.ncbi.nlm.nih.gov/books/NBK1169/#adnfle.Clinical_Characteristics UMLS_CUI:C0520679 http://www.case.edu/EpSO.owl#ObstructiveSleepApnea