A new coder runs the MS-DRG grouper before finishing secondary diagnoses and procedure codes, then trusts the preliminary DRG on the claim. Why is this unsafe?
Select an answer to reveal the explanation.
Short Explanation
Running the grouper on a half-built code set is like weighing a suitcase before you’ve packed it. The number looks official, but it’s not trustworthy until every code that belongs is in there.
Full Explanation
MS-DRG and APC assignment depends on the full coded profile and required patient data. Incomplete diagnosis or procedure entry can understate CCs/MCCs, omit OR procedures, or mis-sequence logic. Coders should validate complete, accurate coding before relying on grouper results for final billing.