How do you resolve a duplicate claim denial?

I would compare the denied claim with prior claim history to determine whether it is truly duplicate, a valid repeat service, or a corrected claim that was submitted incorrectly.

I would compare:

• Patient
• Date of service
• CPT or HCPCS codes
• Units
• Modifiers
• Rendering provider
• Payer claim numbers
• Prior payment or denial status

If it is truly duplicate, no further billing may be appropriate. If the service was repeated legitimately, the documentation and applicable repeat-service modifier may support correction or appeal. If it was meant to replace a prior claim, the payer's corrected-claim process should be used.

• Compare the full claim history.
• Distinguish duplicate from repeat service.
• Use corrected-claim workflows correctly.
• Do not resubmit blindly.

Two identical claims appear on the account. Review shows one was accidentally submitted twice, so the second denial is valid and no appeal is needed.

• Appealing valid duplicates.
• Automatically adding modifier 59.
• Ignoring claim-control numbers.

Explain how you decide whether the duplicate denial is valid before taking action.