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MA04 - Denial Journal
RARC

MA04

Secondary payment cannot be considered without primary payer's identity/payment info

What This Code Means

Informational remark used with COB denials — the secondary payer needs the primary payer’s EOB/payment details before it can process the claim.

Common Causes

  • Primary payer's EOB not attached or referenced
  • COB fields left blank on the secondary claim

How to Resolve or Appeal

  1. Attach the primary payer's EOB/835 information to the secondary claim
  2. Resubmit once complete COB data is included

Related Codes

CO-22 OA-23

More Denial Codes to Check

CARC CO-20 This injury/illness is covered by the liability carrier RARC N8 CARC CO-71 CARC OA-23 Impact of prior payer(s) adjudication including payments and/or adjustments RARC MA99 RARC MA48 CARC CO-109 Claim not covered by this payer/contractor — send to correct payer RARC MA89 CARC CO-99 CARC CO-21 This injury/illness is the liability of the no-fault carrier

Educational reference only — not medical or legal advice. Always confirm code usage and appeal rights with the specific payer.

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