What constitutes an appropriate DRG change post-CDI intervention?

• A. A change to a DRG that is the same weight as before.
• B. A change to a DRG that reduces reimbursement.
• C. A change to a DRG that more accurately reflects patient complexity (often with CC/MCC considerations) resulting from improved documentation.
• D. A change that results in shorter length of stay.

Answer: (C)

The key idea is that a post-CDI DRG change should reflect a more accurate picture of how complex the patient's condition was and how much resource use occurred. When documentation is improved, cc’s (complications or comorbidities) and MCCs (major complications or comorbidities) that truly existed and influenced care are captured. This often shifts the patient to a higher-weight DRG that better mirrors the intensity of treatment and resources used, leading to appropriate reimbursement.

Changing to a DRG with the same weight isn’t a real change in the classification, and shifting to a lower-revenue DRG would only be justified if the documentation actually showed less complexity, which isn’t the typical CDI goal. Length of stay isn’t the mechanism driving DRG assignment; the goal is to align the DRG with documented severity and resource use, usually via CC/MCC considerations.