Understanding E/M: Apply bell curve to spot undercoding

Why This Topic Matters

Consistent undercoding can affect compliance reviews, distort coding patterns, and lead to lost revenue. Understanding how utilization comparisons are used helps practices recognize when further documentation review or education may be needed.

Article Sections

1. Undercoding concerns and audit context

   Introduces the risk of consistently billing lower levels of E/M services and places the topic in the context of audit scrutiny and compliance concerns.

2. Using utilization data to compare coding patterns

   Describes the general approach to comparing a physician’s E/M distribution with peers or national data and notes sources that may provide benchmark information.

3. Calculating code distribution percentages

   Explains the broad method for tallying annual service counts within an E/M code set and converting those totals into percentages for comparison.

4. Example comparison table

   Presents a sample comparison of one physician’s office visit pattern against national data within an established patient E/M service category.

5. Reviewing possible undercoding and education steps

   Discusses the need to review documentation, consult with the provider, and use guideline-based education when utilization patterns suggest possible undercoding.

6. Using the bell curve as a screening tool

   Clarifies that utilization comparisons are intended to flag patterns for further review rather than to replace documentation-based coding decisions.