Healthcare Error Code
Healthcare Insurance / Medical Billing
Eligibility & Coverage (270/271)
AAA-42 | Unable to respond at this time
Industry
Healthcare
Canonical
/healthcare/error-codes/aaa-42/
Last Updated
Feb 25, 2026
Summary
This code indicates that the payer system is temporarily unable to respond to the eligibility inquiry.
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What This Code Means
AAA-42 is returned when the eligibility system cannot provide a response at the time of the inquiry. This is typically a system availability issue rather than a data or coverage problem. The code does not indicate whether coverage exists or not. It reflects a temporary condition affecting system responsiveness.
Where Users Usually See This Code
- 271 eligibility responses
- Eligibility inquiry result messages
- Clearinghouse transaction logs
Why This Code Appears
- Payer system maintenance or downtime
- Temporary processing delays
- High system volume
What Typically Happens Next
- No eligibility information is returned
- The inquiry remains unresolved
- A later inquiry may succeed
What This Code Is Not
- It is not a coverage denial
- It is not a data error
- It is not a termination notice
Troubleshooting Checklist
- □ Wait before resubmitting inquiry
- □ Monitor system availability
- □ Check payer communications
Notes And Edge Cases
System availability issues are often short-lived. Different payer systems may experience downtime at different times.
Related Codes
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