A: The variant NC_000019.10:g.35039238G>T in gene SCN1B is classified as 'Uncertain_significance' for not_provided|Cardiovascular_phenotype. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MedGen:C3661900|MedGen:CN230736. Review status: criteria provided, multiple submitters, no conflicts.