I have a question, I am reviewing PAPS coding in the lab. It is my understanding that the referring physician must provide ICD9 codes. V76.2, v73.21 are appropriate ICD9 and we are getting paid. However, I noticed that on one claim the ref. phys assigned 726.71, bursitis and we were paid. It seems like the insurance would deny this claim because of the wrong ICD9. It is my understanding that we must use the code provided by the referring physician. Any thoughts appreciated.