A: The variant NC_000022.11:g.30623102C>T in gene TCN2 is classified as 'Likely_benign' for Transcobalamin_II_deficiency. Molecular consequence: SO:0001627: intron_variant. Variant type: single_nucleotide_variant. Disease database links: MONDO:MONDO:0010149,MedGen:C0342701,OMIM:275350,Orphanet:859. Review status: criteria provided, single submitter.