Navigate NCCI basics

Why This Topic Matters

NCCI guidance affects how services are reviewed for correct reporting and compliance with Medicare coding policy. Understanding the article helps readers locate the relevant CMS resources and recognize the major categories of NCCI edits and modifier usage discussed in the guidance.

Article Sections

1. NCCI overview and CMS resources

   Introduces the purpose of NCCI and points readers to CMS tools and manual resources used for edit review and documentation support.

2. PTP edits

   Describes procedure-to-procedure edit structure, edit pairs, and the general role of indicators, dates, and rationale fields.

3. MUE edits

   Covers medically unlikely edits, their units-of-service framework, and the general meaning of adjudication indicators and rationale categories.

4. AOC edits

   Summarizes add-on code edit concepts and the relationship between add-on codes and primary codes.

5. NCCI modifiers

   Reviews the broad modifier categories referenced in NCCI guidance and the circumstances under which modifier indicators are discussed.

6. General guidelines

   Provides a high-level overview of the decision framework used to evaluate whether an NCCI modifier is appropriate.