A: The variant NC_000022.11:g.42214609G>A in gene TCF20 is classified as 'Pathogenic' for Developmental_delay_with_variable_intellectual_impairment_and_behavioral_abnormalities|Neurodevelopmental_abnormality|not_provided. Molecular consequence: SO:0001587: nonsense. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0032745,MedGen:C5193092,OMIM:618430|Human_Phenotype_Ontology:HP:0012759,MedGen:C4022737|MedGen:C3661900. Review status: criteria provided, single submitter.