A: The variant NC_000022.11:g.42179633G>A in gene TCF20 is classified as 'Pathogenic' for Neurodevelopmental_abnormality|Attention_deficit_hyperactivity_disorder|Hypotonia|Neurodevelopmental_delay|Autistic_behavior. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: Human_Phenotype_Ontology:HP:0012759,MedGen:C4022737|Human_Phenotype_Ontology:HP:0001576,Human_Phenotype_Ontology:HP:0001577,Human_Phenotype_Ontology:HP:0006973,Human_Phenotype_Ontology:HP:0007018,MONDO:MONDO:0007743,MedGen:C1263846|Human_Phenotype_Ontology:HP:0001252,MedGen:C0026827|Human_Phenotype_Ontology:HP:0012758,MedGen:C4022738|Human_Phenotype_Ontology:HP:0000729,MedGen:C0856975. Review status: criteria provided, single submitter.