A: The variant NC_000021.9:g.43058132G>C in gene CBS is classified as 'Likely_benign' for HYPERHOMOCYSTEINEMIA,_THROMBOTIC,_CBS-RELATED. Molecular consequence: SO:0001627: intron_variant. Variant type: single_nucleotide_variant. Disease database links: MedGen:C3150344. Review status: criteria provided, single submitter.