HCPCS Code A0425 — What It Means on Your Medical Bill

HCPCS code · Ambulance · Typically billed in: Ambulance

What HCPCS code A0425 means: Ambulance mileage, per mile.

Seeing HCPCS code A0425 on your medical bill?
This code is only one part of the picture — your bill, EOB, insurance adjustments, units, and other charges may affect what you actually owe. MD Bill Check reads the codes on your document, checks the bill in context, and flags items that may be worth reviewing.

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How many units of HCPCS code A0425 should appear on one day

Units normally expected per day: Medicare normally expects at most 250 units of HCPCS code A0425 per patient per day. This limit applies per claim line, so the same code can legitimately appear on more than one line of the same bill.

If your bill shows more units of HCPCS code A0425 for a single date of service than that, it is worth asking the billing office to explain the count — duplicate lines and unit-entry mistakes are among the most common medical-billing errors.

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Frequently asked questions about HCPCS code A0425

What does HCPCS code A0425 mean on a medical bill?

Ambulance mileage, per mile. Bills group it under "Ambulance", and it is typically provided in this setting: Ambulance.

How many units of HCPCS code A0425 can be billed per day?

Medicare's Medically Unlikely Edits normally expect at most 250 units of HCPCS code A0425 per patient per day. This limit applies per claim line, so the same code can legitimately appear on more than one line of the same bill.

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