97001, 97004 CPT Code description
The initial evaluation identifies the problem or difficulty the patient is having which helps determine the appropriate therapy necessary to treat the patient. An evaluation is a comprehensive service requiring professional skills to make clinical judgments about conditions for which services are indicated. If a new diagnosis/problem is encountered, then an additional evaluation may be appropriate to determine what course of treatment is necessary for the separate identifiable diagnosis/problem.
Re-evaluations are indicated periodically when the professional assessment indicates a significant improvement or decline in the patient’s condition or functional status. The re-evaluation focuses on the patient’s progress toward current goals. Professional judgment is used to determine continued care, modifying goals and/or treatment or terminating services.