tooth agenesis ICD9CM:520.0 ICD10CM:K00.0 A tooth disease characterized by failure to develop on or more missing teeth. OMIM:313500 OMIM:150400 Xref MGI. DOID:0050591 OMIM:604625 SNOMEDCT_US_2020_03_01:234951001 ORDO:99798 OMIM:610926 UMLS_CUI:C0399352 MESH:D000848 OMIM:106600 disease_ontology ORDO:2227 OMIM:602639 familial tooth agenesis hypodontia oligodontia selective tooth agenesis tooth disease