major depressive disorder An endogenous depression that is characterized by an all-encompassing low mood accompanied by low self-esteem, and by loss of interest or pleasure in normally enjoyable activities. DOID:10614 DOID:1470 DOID:2240 DOID:2241 DOID:7580 ICD10CM:F32 ICD10CM:F32.9 ICD10CM:F33 ICD10CM:F33.9 ICD9CM:296.2 ICD9CM:296.20 ICD9CM:296.3 ICD9CM:296.30 NCI:C34796 OMIM:608520 OMIM:608691 SNOMEDCT_US_2016_03_01:191599006 SNOMEDCT_US_2016_03_01:191600009 SNOMEDCT_US_2016_03_01:191607007 SNOMEDCT_US_2016_03_01:191608002 SNOMEDCT_US_2016_03_01:191609005 SNOMEDCT_US_2016_03_01:191617002 SNOMEDCT_US_2016_03_01:192366006 SNOMEDCT_US_2016_03_01:268620009 SNOMEDCT_US_2016_03_01:268621008 SNOMEDCT_US_2016_03_01:36923009 SNOMEDCT_US_2016_03_01:66344007 UMLS_CUI:C0024517 UMLS_CUI:C0154409 Xref MGI. disease_ontology recurrent major depression single major depressive episode MESH:D003865 mental depression