A0420 is a valid 2023 HCPCS Code that could be used to indicate Ambulance waiting time (als or bls), one half (1/2) hour increments for reimbursement purposes.
A0420 belongs to Ambulance Type of Service and has been in effect since Jan 01, 2014.
Short description for A0420 HCPCS code:
Ambulance waiting 1/2 hr