DFDenialFix Desk

Denial category

BCBS Timely filing denials: Codes, Appeals and Fix Workflow

BCBS timely filing denial workflows, evidence checklists, accepted submission proof, and CO-29 appeal support.

Category summary: The winning issue is proof: show accepted receipt, a qualifying delay, payer error, or a policy-recognized exception.

Top codes in this category

CO-29Time limit for filing has expired

How to work these denials

  1. Find the filing limit in the provider contract, provider manual, or product-specific policy.
  2. Build a date timeline: date of service, original submission, acceptance/rejection, correction, payer response, and denial date.
  3. Attach the strongest proof first: 277CA, payer claim number, clearinghouse acceptance, or portal confirmation.
  4. Explain why the claim meets the filing rule or a specific exception, using dates rather than general statements.
  5. Submit through the plan’s dispute/appeal channel before the appeal deadline runs out.

Evidence checklist

  • Clearinghouse acceptance report
  • 277CA or payer acknowledgement
  • Original claim control number
  • Provider manual excerpt
  • COB/eligibility records if relevant
  • Appeal timeline

Guides in this cluster