The DRG era: why documentation is reimbursement

In a fee-for-service world, documentation was a record of what was done. Under DRG-based payment, documentation is the determinant of what is paid. Which group an episode falls into — and therefore how much it reimburses — depends on how completely diagnoses, comorbidities and severity indicators are captured.

This is a quiet risk for hospitals. Care that is clinically correct can fall into a lower group simply because it was under-documented. If the coding does not survive audit, reimbursement can be recovered afterward.

This is exactly where CDI (clinical documentation improvement) comes in: making documentation gaps visible before they change the DRG assignment.

In this post we look at how the DRG transition reshapes documentation and coding practice, and what is at stake.