I am new to coding and billing as i am filling in on short notice for the person who currently does this. We are billing out an MRI for bilateral wrists and the only codes that the referring physician has given me is pain in joints, and pain in joints multiple. My question is if i use these icd-9s, will this affect my reimbursement for billing. and also, do what modifiers might i need to use. I see before that they have used LT and RT ( left and right) but thats about it. Please let me know, appreciate the help in advance. Please include and tips and tricks that might help at your disposal!