1. Select "Check For Identifiers" in Project Setup tab (Circled in red below)
2. A list of all the question Variable Names and Field Labels will be listed here. Select the PHI's by clicking on the "Identifier?" box that is located next to each question. A picture of the "Check for Identifiers" box is shown below.
Go to: What Are PHI and PII Identifiers for detail on what a PHI Identifier is.
3. Once identifiers have been selected, scroll to the bottom of the page and click on "Update Identifiers" (circled in red below)