Billing Requirements, Medicare Part A: Claim Adjustment Segment in 837I

As of Oct. 5, 2009, th e Centers for Medicare & Medicaid Services (CMS) requires that providers billing Medicare Part A, including home health and hospice providers, must utilize the Claim Adjustment Segment (CAS) in Form 837I when submitting Medicare secondary payer (MSP) claims, adjustments, corrections, or cancellations to their Medicare contractor. In addition, CMS…