Reason Code 31600

Published 07/12/2021

Reason Code Narrative

The type of bill is equal to 13x, 22x, 23x, 32x, 33x, 34x, 83x or 85x with revenue code 54x (ambulance) on the claim; however, the appropriate mileage HCPCS coding is reported in error.

Resolution

  • Ensure the trip codes and mileage are compatible for type of bill and line item dates of service for ambulance base and corresponding mileage must be the same. 
  • Verify HCPCS codes and origin/destination modifiers are compatible

Resource: Medicare Claims Processing Manual (PDF), IOM 100-4, Chapter 15 Ambulance.


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