What is a CC and MCC in DRG logic, and how do they influence DRG assignment?

• A. CC stands for Chronic Condition and MCC stands for Major Condition; neither affects DRG.
• B. CC is a Complication/Comorbidity; MCC is a Major Complication or Comorbidity; their presence can shift a patient to a higher-weight DRG reflecting greater resource use.
• C. MCC stands for Minor Complication; CC is a Clinical Condition; neither affects DRG.
• D. CC and MCC only affect POA reporting, not DRG.

Answer: (B)

In DRG logic, CC stands for Complication/Comorbidity and MCC stands for Major Complication or Comorbidity. These designations identify additional health problems beyond the principal diagnosis that affect how much care a patient requires.

Their presence signals greater resource use, so cases with a CC or especially an MCC are often placed into a higher-weight DRG within the same clinical grouping. This reflects the expectation of more intensive services, longer stays, or more complex care.

The idea that CCs or MCCs don’t affect DRG is incorrect because these designations are specifically used to adjust DRG assignment to account for increased severity. An MCC is not a minor factor, and DRG decisions aren’t limited to POA reporting.