Common Working File definition

Common Working File means the Medicare prepayment validation and authorization system that forms the cornerstone for Medicare transactions processing. The Common Working File (CWF) is the single data source that verifies beneficiary eligibility and provides prepayment review and approval of claims.
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Examples of Common Working File in a sentence

  • Until receipt of the replacement Eligibility File, the CMS Contractor will transfer claims based on the last transmitted Eligibility File that was readable and was posted to CMS’ Common Working File.

  • Upon receipt of an Eligibility File update, populate the Common Working File (CWF) Beneficiary Other Insurance (BOI) auxiliary record.

  • Upon receipt of an Eligibility File update, process it and populate the Common Working File (CWF) Beneficiary Other Insurance (BOI) auxiliary record.

  • Following are the edit codes applied by the Common Working File (CWF) to Medicare Secondary Payer (MSP) records; an Agreeing Partner may receive these in their response file.

  • Common Working File (CWF), System No. 09-70-0526, last published in full at 71 FR 64955 (11/6/06), and partially updated at 78 FR 23938 (4/23/13), 78 FR 32257 (5/29/13), and 83 FR 6591 (2/14/18).

Related to Common Working File

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