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.

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