NCCI Edits and MUEs

1. NCCI overview

   Purpose of NCCI edits and how Medicare uses them.

2. Procedure-to-procedure edits

   Column one and column two codes, modifier indicators and bundling rules.

3. Medically unlikely edits

   Maximum units of service per day, MAI and adjudication indicators.

4. NCCI policy manual

   Chapter-by-chapter correct coding policy.

5. Add-on code edits

   Primary code requirements for add-on codes.

6. Modifiers that bypass edits

   Modifiers 59, XE, XS, XP and XU use.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.