The Modifiers Reference contains a list of Modifiers that can be applied to a Procedure Code in the Fee Schedule. The Modifiers Reference is not present in MacPractice DDS.
The Modifiers Reference does not link directly to the Fee Schedule, it is intended as a place within the software to keep track of all of the modifier codes your office may use.
To add a Modifier to the Reference, simply select the category as indicated in the screenshot, and click the Green Plus icon to add a new record. You can then set the Modifier Code and set a Description of the Modifier.
To set up Procedure Codes with Modifiers pre-applied to the Procedure Code, please refer to the References - Fee Schedules article for information and instructions.