Understanding the “Two of Three” Rule in E/M Coding

Learn how to accurately select the correct E/M code by understanding the “two of three” rule for Medical Decision Making.      

Lander Understanding the Two of Three Rule in EM Coding

Medical Decision Making (MDM) is at the heart of Evaluation & Management (E/M) coding—and getting it wrong can mean compliance headaches and lost revenue. Our guide breaks down the MDM process, explains the three subcomponents, and shows how to meet the “two of three” requirement that determines the overall level of service. 

What You’ll Learn: 

  • The three MDM subcomponents and how they impact coding 
  • Why meeting 2 of 3 subcomponents is required for code selection 
  • Common pitfalls that lead to denials and compliance issues 
  • How to align documentation with the correct E/M level 

 
Get clarity on MDM and take the guesswork out of E/M coding.