Help. It's been a while since I passed my CPC. Just started billing for a nutritionist and acupuncturist. Coding has caught my eye in denials. Cigna will cover knee pain. The person coding is going off of a list of codes provided by Cigna. 715.16 is for osteoarthritis (primary localized lower leg) and is listed as a code they accept. Must I or would it cause a problem if I added another code for pain or is that a symptom in this case and does not need to be included? Thank you for your help. I obviously have a lot of refreshing to do.