Dispatch and operations
What Is a Trip Leg in NEMT? One Leg Is One Ride From A to B
A trip leg in NEMT is one one-way ride from a pickup to a drop-off. A round trip to dialysis is two legs: home to the clinic, then the clinic back home. Each leg gets its own trip number and pickup time, programs pay a base rate for each leg, and each leg needs its own record with its own times and miles.
- One leg is one ride from a pickup point to a drop-off point. A round trip is two legs.
- The ride to the appointment is often called the A leg, and the ride home the B leg.
- Each leg gets its own trip number, its own pickup time or will-call, and its own record.
- Programs pay a base rate per leg. Louisiana pays $21.50 per wheelchair van leg plus $1.30 a mile on its fee schedule effective October 1, 2025.
- A stop on the way is part of the same leg in Georgia and Indiana, but Texas counts an add-on trip as a new leg.
What a trip leg means
A trip leg is one ride from one pickup point to one drop-off point. Texas writes it into its NEMT Services Handbook (Uniform Managed Care Manual Chapter 16.4, version 2.0.1): a trip leg is “transportation of a Member from point of Origin to Destination.” The ride from home to the appointment is one leg. The return trip is a separate leg, and a one-way trip has only one leg.
Programs use different words for the same thing:
- Leg or trip leg. Texas, Louisiana’s fee schedule, and broker trip numbers.
- Trip or one-way trip. Georgia’s NEMT manual (July 1, 2026) defines an NEMT trip as “a one-way transportation service” to a covered medical service, or the reverse, or from one covered service to another. Indiana’s module counts a ride home from the doctor as a one-way trip.
- A leg and B leg. The first ride of a trip and the ride back. MTM Health’s Virginia handbook refers to “the initial (A Leg) pickup.” Georgia’s broker reports late A-leg trips and late B-leg trips separately.
So a booking for a round trip is really two rides. Every leg has its own pickup, its own drop-off, its own time, and its own miles. That is why dispatch, billing, and records all work one leg at a time.
How to count legs
The examples below come from the Indiana, Georgia, and Texas manuals. Programs agree on the simple cases and differ on stops.
| The ride | Legs | Where the rule comes from |
|---|---|---|
| Home to the doctor | 1 | Indiana, example 1 |
| Home to the doctor, the driver leaves, later the doctor to home | 2 | Indiana, example 2 |
| Doctor to a lab, the driver waits outside, then the lab to home | 1 | Indiana: “a stop along the way is not considered a separate trip” |
| Doctor to home with a stop at the pharmacy | 1 in Georgia, which calls it a continuous transport | Georgia glossary |
| Pharmacy trip right after an approved appointment, not approved in advance | A separate leg in Texas, called an add-on trip | Texas Chapter 16.4 |
| Home to a first appointment, then to a second appointment, then home, with the driver leaving each time | 3 | Indiana bulletin BT2025119 |
| Picking up a second rider on the way to dialysis | Still 1 leg for the first rider. The second rider is billed separately, at half the base rate. | Indiana, example 4 and its multiple passengers rule |
Waiting changes the billing in Indiana. Its August 19, 2025 bulletin says a ride “is considered a single trip if the transportation provider stays and waits for the member” between destinations, so those legs are not billed as extra trips with the XE modifier. Wait time is billed where the program pays it. See wait and return.
Why billing works per leg
Base rates are paid by the leg. Louisiana’s NEMT fee schedule, effective October 1, 2025, lists its base rate “per trip leg”:
| Code | Base rate per leg | Mileage per mile, from mile zero |
|---|---|---|
| T2003, non-emergency transportation, encounter or trip | $13.50 | $1.10 |
| A0130, wheelchair van | $21.50 | $1.30 |
| A0130, wheelchair van, higher level of care (ELOC) | $31.50 | $1.30 |
A wheelchair van round trip of 9 miles each way at those rates pays 2 legs × $21.50 plus 18 miles × $1.30. That is $43.00 plus $23.40, or $66.40. See A0130 and T2003.
Programs put the two legs of a round trip on the claim in different ways:
| Program | How a same-day round trip goes on the claim |
|---|---|
| Indiana Medicaid (module version 6.1) | One detail line with 2 units of the base code when both legs are the same level of service, and all the round trip’s miles on one mileage line. Legs at different levels go on two claims. |
| Arizona AHCCCS fee-for-service (July 31, 2026) | All trips that day on one claim: 2 units of the base rate on line 1, total loaded miles on line 2, wait time on line 3. |
| New York Medicaid (manual effective August 25, 2023) | One claim line per date of service, with 2 units for a round trip. |
| Medi-Cal fee-for-service, ground (manual page updated August 2020) | One line with 2 units, two lines with 1 unit each, or two separate claims. |
Modifiers flip from leg to leg. Georgia’s manual sets the codes its broker reports to the state: a ride from the residence (R) to a physician’s office (P) carries RP, and the ride back carries PR. Pharmacy trips use U1 for the initial trip and U2 for the return. See origin and destination modifiers.
Indiana also uses the XE modifier to mark each extra trip for the same rider on the same day. Its bulletin says not to use XE for separate legs when the driver waited between destinations.
Why scheduling works per leg
- Each leg has its own pickup. The A leg has a set time. The B leg has a set time or is a will-call, placed when the rider is ready. MTM Health’s Virginia handbook sets a pickup window of 15 minutes before to 15 minutes after for the A leg pickup.
- Each leg can go to a different vehicle. CMS says a second driver for the return can be more economical than a long wait (SMD 23-006, September 28, 2023). Arizona does not pay wait time when two different vehicles or drivers cover the round trip.
- Each leg is scored. Georgia’s broker reports late A legs and late B legs separately to the state each month.
- Shared rides are still separate legs. New York bills a base fee for each rider in a grouped ride, but pays the shared miles only once, from the first pickup to the last drop-off. See NEMT multiloading.
Build the day one leg at a time. The NEMT scheduling guide shows how to group legs by area and time.
Why records work per leg
Every leg needs its own record, even on a round trip:
- New York requires its trip documentation “for every leg of a trip,” kept for six years from the date of payment. Electronic records need a system-generated, unchangeable date and time stamp for each leg, at pickup and drop-off.
- Texas requires the trip manifest to carry “a unique identifier for each leg of the trip for billing purposes.”
- CareOregon gives a trip number to each leg of the reservation for each date of service (manual version 1.3, February 2024).
- MTM Health issues a unique trip ID for every trip it assigns, and its Virginia handbook says never to transport a member without one.
- Indiana has claims for brokered trips of members who also have Medicare sent to Verida with the Trip Leg ID that Verida gives when it schedules the ride.
- Arizona wants each segment of a multi-stop trip on the Daily Trip Report, with addresses, times, and odometer readings. If the loaded miles out and back differ, explain why, or AHCCCS may reduce the mileage.
The free trip log template gives each leg its own row. The trip documentation guide lists what each record needs.
Frequently asked questions
Is a round trip one trip or two legs?
Two legs. Texas defines the ride from pickup to destination as one trip leg and the return trip as a separate trip leg. Georgia calls each one-way ride an NEMT trip. Indiana counts a ride to the doctor and a later ride home as two one-way trips. Each leg is scheduled, paid, and recorded on its own.
What are the A leg and the B leg?
The A leg is the first ride of a trip, from the pickup to the appointment. The B leg is the ride back. MTM Health's Virginia handbook sets its pickup window of 15 minutes before to 15 minutes after for "the initial (A Leg) pickup" of a scheduled trip. Georgia's broker reports late A legs and late B legs separately, and pays the A leg when a rider fails to board and the provider was on time.
Does a pharmacy stop on the way home count as a new leg?
It depends on the program. Georgia calls a ride home with a pharmacy stop one continuous trip, and Indiana says a stop along the way is not a separate trip. Texas counts an add-on trip, such as a pharmacy visit right after an approved appointment, as a separate leg. Check your broker or state manual before you bill it.
How many units do I bill for a round trip?
Usually two units of the base code, one per leg. Indiana bills a same-day round trip at the same level on one claim line with 2 units, and Arizona bills 2 units of the base rate on line 1. New York wants one claim line per date of service with 2 units for a round trip. Mileage follows each program's own rules.
Can the two legs of a round trip go on different vans?
Yes. Each leg is its own ride, so dispatch can place the return on another vehicle. CMS notes a second driver for the return can cost less than a long wait at the clinic. In Arizona, wait time cannot be billed when two different vehicles or drivers are used for the round trip.