So my doctor wants to bill out 99213 and a 99396 (preventative exam) together. However, there is NOTHING in the documentation that states that the patient has come in for a preventative exam. In order to correctly bill this out doesn't the physician need to state which parts of the exam are for the 99213 and which are for the 99396? If you know the correct way to bill this, please let me know. Thank you.