PDF Evaluation and Management (E/M) Training - AAPC The description of HPI is listed in the Evaluation and Management Guidelines of the CPT® coding manual. The 1995 and 1997 Documentation Guidelines for Evaluation and Management Services recognizes eight HPI components: 1. Location: The anatomical place, position, or site of the chief complaint (eg, back pain, sore elbow, cut on leg, etc.) 2.