A: The variant NC_000019.10:g.41969523C>A in gene ATP1A3 is classified as 'Uncertain_significance' for Developmental_and_epileptic_encephalopathy_99. Molecular consequence: SO:0001583: missense_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0030473,MedGen:C5562018,OMIM:619606. Review status: no assertion criteria provided.