Blog | Marie Matteson, MS

Notes on stress, healthcare systems, medical billing, and what is really going on underneath the problem.

Written by Marie Matteson, MS

Procedure Modifier Combination Is Not Compatible: How to Fix It in Office Ally

Procedure Modifier Combination Is Not Compatible: How to Fix It in Office Ally

Procedure Modifier Combination Is Not Compatible: How to Fix It in Office AllyMarie T Matteson MS
Published on: 24/08/2026

The EOB says the procedure modifier combination is not compatible and the balance was already written off. Here is the correct order to reverse the write off, add the 25 modifier and resubmit the corrected claim in Office Ally.

Office Ally Tips