A: The variant NC_000022.11:g.42128176_42128178del in gene CYP2D6 is classified as 'Likely_benign|other' for not_provided|Tramadol_response. Molecular consequence: SO:0001822: inframe_deletion. Variant type: Deletion. Disease database links: MedGen:C3661900|MedGen:CN078023. Review status: criteria provided, multiple submitters, no conflicts.