Patient evaluation codings can be very confusing. The patient initial evaluation code is 97001 (also, 97003, 92506, 92610) however if the patient is reevaluated (97002- patient reevaluation) within a 12 month period only one unit of service may be billed to Medicare Part B patients no matter how much time was spent actually servicing the patient. If you make a mistake and bill the carrier for the evaluation and a unit of service for the reevaluation, your claim will be denied based on incorrect coding no matter how much medical documentation you provide showing the necessity of the reevaluation of the patient. Keeping up with the fast paced changes of …