I have a claim where the patient had surgery out of state and is now seeing our local ortho doctors for a follow up visit for both conditions. Patient had a hip hemiarthroplasty due to a fracture and also has a distal radius fracture. MD is billing 99024 and 99213-24. I think I should bill 99213 because of different tax-id's. But I am wondering about 99024 because it is the same insurance company that paid for the surgery and now the follow up. I have access to outpatient visit notes from the out of state doctor but no billing information. Has anyone encountered this situation?