SCS for low back pain

What diagnosis codes (for insurance/ Medicare approval) do you use for the 80+ year old, non surgical patient with severe arthritis, severe multilevel stenosis, cauda equines impingement, never had surgery/not offered surgery because of age but wants to try SCS? I think it’s perfectly reasonable to offer this to patients but running into insurance companies who don’t think so because “patient never had back surgery” or doesn’t have “crps”?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pain Medicine Source Type: forums