Wiki Cpt 45385 and 45380 bill together

I've recently had that same problem with Harvard Pilgrim Ins. When I researched their web site I found this:

The endoscopy code with the higher allowable when multiple endoscopy procedures are performed using the same
or multiple techniques, at the same or different sites, in the same anatomical area (for example: when the removal of
colon lesions by ablation and snare technique are performed at the same session, only the code with the higher allowable
(removal of colon lesions by ablation) will be reimbursed).

Other insurance companies we deal with are still allowing both 45385 and 45380-59.