835 Denial Combination
CO-22+MA04
Contractual Obligation · Service-Line Level Adjustment
What This Combination Means
This claim appears to be covered by a primary payer. The primary payer information was either not reported or was illegible on the claim
N/A
Appeal Success
7-14 days
Avg. Resolution
Medium
Difficulty
No
Appealable
Step-by-Step Resolution
Steps tailored specifically to this CO-22+MA04 combination — not generic advice.
- 1
Correct claim with the insurance information and resubmit as a new claim
Specialty Context
How CO-22+MA04 typically presents across different practice types.
Dental
Medical
Behavioral Health
Individual Code References
View the standalone definition for each code in this combination.
Medicare Contractor Guidance for CARC 22
FCSO + Noridian + uhc + aetna + bcbs_azThis care may be covered by another payer per coordination of benefits. This denial was received because Medicare records indicate that Medicare is the secondary payer.
How to Prevent CARC 22 Denials
- ✓
Ask the patient or patient representative to complete the Medicare Secondary Payer (MSP) Questionnaire to help determine if Medicare is the primary or secondary payer. Place the completed questionnaire in the patient's file.
- ✓
Check patient eligibility and verify if Medicare is the secondary payer via SPOT.
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