male infertility azoospermia NCI:C80076 A male infertility disease characterized by the absence of any measurable level of sperm in semen. Xref MGI. MESH:D053713 UMLS_CUI:C0004509 ICD9CM:606.0 MESH:D053713 EFO:0000279 ORDO:217034 disease_ontology ICD10CM:N46.0 SNOMEDCT_US_2020_03_01:425558002 DOID:14227 spermatogenic failure