Validates that all ICD-10-CM/PCS, discharge disposition codes, and Hospital Acquired Condition (HAC), Present on Admission (POA) indicators impacting payment are documented, clinically supported, and assigned following Official Coding Guidelines, compliant query practices and current clinical validation criteria. Possess regulatory ICD-10-CM/PCS coding expertise coupled with subject matter expertise in MS/APR DRG payment methodologies, including Hospital Acquired Conditions (HACs), POA assignment, and Discharge Disposition codes.