CAS Code in Medical Billing
CAS stands for Claim Adjustment Segment, a section of the remittance advice that includes adjustment reason codes and amounts.
CAS Code in Medical Billing Explained
In medical billing, the Claim Adjustment Segment (CAS) is part of the electronic remittance advice or explanation of benefits (EOB) provided by insurance companies. It includes adjustment reason codes (CARCs) and amounts that explain why certain portions of the claim were paid differently than expected or denied.
For example, a provider receives a remittance advice with a CAS segment explaining that $100 was deducted from the payment due to a contractual adjustment.
Learn more about common acronyms and abbreviations in Medical billing glossary.
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