A: The variant NC_000023.11:g.9691733dup in gene TBL1X is classified as 'Benign' for Hypothyroidism,_congenital,_nongoitrous,_8. Molecular consequence: SO:0001627: intron_variant. Variant type: Duplication. Disease database links: MONDO:MONDO:0026731,MedGen:C5231395,OMIM:301033. Review status: criteria provided, single submitter.