A: The variant NC_000022.11:g.42210564CT[1] in gene TCF20 is classified as 'Pathogenic' for Developmental_delay_with_variable_intellectual_impairment_and_behavioral_abnormalities|not_provided|Neurodevelopmental_abnormality. Molecular consequence: SO:0001589: frameshift_variant. Variant type: Microsatellite. Disease database links: MONDO:MONDO:0032745,MedGen:C5193092,OMIM:618430|MedGen:C3661900|Human_Phenotype_Ontology:HP:0012759,MedGen:C4022737. Review status: criteria provided, multiple submitters, no conflicts.