Summary & Overview
HCPCS Level II A0170: Transportation Ancillary — Parking, Tolls
HCPCS Level II code A0170 denotes ancillary transportation expenses such as parking fees, tolls, and other incidental transportation charges tied to patient care. Nationally, this code matters because it provides a standardized mechanism for facilities and providers to record and seek reimbursement for nonmedical but service-essential transportation costs that can accrue during care delivery. Proper use of A0170 supports administrative transparency and can affect bundled payments or claim line-item accounting.
Key payers referenced include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of what the code captures, where the expenses typically occur, and which payers commonly accept the line item. The publication outlines benchmarking context, common billing practices, and relevant documentation considerations that affect adjudication. It also highlights national policy and billing implications for including transportation ancillary charges on claims. This summary provides the clinical and billing context necessary for coding staff, billing managers, and revenue cycle analysts to recognize when A0170 is applicable and what to expect when submitting it to major commercial and public payers.
Billing Code Overview
HCPCS Level II code A0170 represents transportation ancillary: parking fees, tolls, other. This code is used to report ancillary transportation-related expenses incurred to support patient care, including parking fees, tolls, and similar ancillary charges.
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Service type: Ancillary transportation expense
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Typical site of service: Ancillary services associated with outpatient visits, ambulatory care, transportation coordination, or other healthcare settings where parking or tolls are incurred
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Clinical & Coding Specifications
Clinical Context
A patient receiving non-emergency medical transportation for an outpatient appointment incurs incidental transportation-related expenses such as parking fees and tolls. Typical scenario: an adult with chronic heart failure attends a routine cardiology clinic visit at an outpatient hospital or specialty clinic. The clinic arranges transportation or the patient is transported by a contracted vendor; the vendor or provider bills ancillary transportation expenses separately using A0170 to capture parking fees, tolls, or other necessary incidental travel costs. The clinical workflow: the patient schedules the appointment; transportation is coordinated; during transit the driver documents incurred parking and toll charges; after the visit, the transportation vendor or provider submits an ancillary charge under A0170 with appropriate documentation of amounts and dates to the patient’s insurer for reimbursement of these incidental transportation expenses.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Use when no modifier applies to the ancillary transportation charge |