The CDI specialist should first review the final coded record together with the Coding Clinic guidance identified by the coder. This provides an objective basis for understanding why the final MS-DRG differs from the CDI working DRG.
A mismatch does not automatically indicate that either CDI or coding made an error. Working DRGs are provisional and may change after complete review of discharge documentation, operative reports, pathology, final diagnostic information, coding conventions, official guidelines, or authoritative Coding Clinic advice.
Reviewing the applicable guidance before contacting the coder promotes an informed and efficient reconciliation process. Once the specialist understands the coding rule, discussion with the coder may still be useful if ambiguity remains. Immediately escalating to the coding manager is unnecessary unless the issue cannot be resolved through normal collaboration. Forwarding the record without investigating the mismatch would defeat the purpose of a reconciliation process and could allow recurring education opportunities to remain unidentified.
Mismatch analysis is a valuable CDI quality metric because it can identify documentation gaps, coding- knowledge issues, changes in authoritative guidance, and opportunities to improve CDI/coding alignment.
CCDS Reference Topics: MS-DRG reconciliation; CDI/coder collaboration; Coding Clinic application; CDI program analysis.
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