Code 11426 would actually be correct for the example given. It is appropriate to use excision codes 11400-11646 (excision, benign lesion; excision malignant lesion) but the the correct excision code options for this scenario are 11626 (excision, malignant lesion, scalp, neck, hands, feet, genitalia; lesion diameter over 4.0 cm) for a malignant tumor and 11426 (excision, benign lesion, except skin tag [unless listed elsewhere], scalp, neck, hands, feet, genitalia; lesion diameter over 4.0 cm) for a benign tumor.
ED Coding Alert apologizes for the error.