Not amenable

when you see the term "not amenable" on a surgical procdecure description, what does it mean? (ex: procedure code 43258 says not amenable to removal by hot biopsy forceps)

it means

that for whatever reason the preferred procedure could not be done. The description says- ablation of tumor or lesion not amenable to removal. Optimally you want to remove a tumor/lesion to send for pathology but if it cannot be removed (perhaps due to location , size, other characteristics) then if the doctor chooses to ablate (destroy) it you use that code.