A: The variant NC_000022.11:g.19765970C>T in gene TBX1 is classified as 'Conflicting_classifications_of_pathogenicity' for DiGeorge_syndrome|Conotruncal_heart_malformations|Tetralogy_of_Fallot|Velocardiofacial_syndrome. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0008564,MedGen:C0012236,OMIM:188400,Orphanet:567|MONDO:MONDO:0016581,MedGen:C1857586,OMIM:217095,Orphanet:2445,Orphanet:3384,Orphanet:3426|Human_Phenotype_Ontology:HP:0001636,MONDO:MONDO:0008542,MedGen:C0039685,OMIM:187500,Orphanet:3303|MONDO:MONDO:0008644,MedGen:C0220704,OMIM:192430,Orphanet:567. Review status: criteria provided, conflicting classifications.