TMPPM 2008 > Texas Medicaid Services > Ambulance > Ambulance Procedure Codes
Use the following procedure codes when billing for ambulance services provided to Medicaid-eligible clients:
9-A0382
Maximum allowable fee of $20.30 is per transport, not to exceed $40.60 round trip.
9-A0420
9-A0422
9-A0424
9-A0425
with modifier ET
Use modifier ET to denote emergency services. A0425-ET is denied if it is billed without A0429.
9-A0429
9-A0430
9-A0431
9-A0435
9-A0436
9-A0999
Use for water ambulance services.
A0425 is denied if it is billed without A0428
9-A0428