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Medicare Billing: CMS-1450 & 837I

Lesson 5 Summary

  • Use current, valid diagnosis and procedure codes and code them to the highest level of specificity
  • Enter the principal diagnosis on a claim based on the reason chiefly responsible for an admission
  • Inpatient hospital claims require principal procedure codes for procedures performed
  • Report the ICD-10-PCS code that identifies the inpatient principal procedure you performed at the claim level during the period covered by the bill and the corresponding date
  • In most cases, Medicare automatically crosses over patients’ claims to supplemental insurers, provided those insurers participate in the Coordination of Benefits Agreement (COBA) crossover process
  • The PWK segment is used to submit additional claim documentation electronically and must include a completed cover sheet provided by the MAC