What is a trip leg in NEMT?

Legs, trips, and round trips

A leg is the unit NEMT runs on: one rider, one pickup, one drop-off. Everything else is built from legs.

• One-way trip. One leg.
• Round trip. Two legs. The A leg goes out, and the B leg comes back.
• Multi-stop day. Three or more legs, such as home to dialysis, dialysis to a lab, and the lab back home.

Brokers work at the leg level. MTM’s portal guide says “all trips are assigned as an A and a B leg” and asks providers to make sure updates reflect each leg. CareOregon issues a unique trip number for each leg of a reservation on each date of service. Indiana’s monthly report counts missed trips separately for to-appointment legs and from-appointment legs.

Here is how a hypothetical dialysis day breaks down:

Why every leg stands on its own

Each leg has its own facts, and they often differ between the ride out and the ride home.

• Status. The A leg can be completed while the B leg is cancelled. Mark each one separately.
• Timing. The A leg has an arrive-by deadline. The B leg is scheduled or a will-call. MTM’s 2026 Virginia handbook applies its 15-minute pickup window only to the A leg pickup, and sets a separate 45-minute limit for will-call returns.
• Driver and vehicle. The ride home may be a different van. In Arizona, wait time is not billable when two different vehicles or drivers handle the round trip.
• Miles. Each leg has its own loaded miles. Arizona asks you to justify a gap between the mileage out and the mileage back, or it may reduce the difference.
• Proof. Each leg needs its own times and signature on the trip log.

The practical rule is to never let the round trip hold the data. Record times, miles, driver, and status on each leg.

The legs still affect each other. When a rider is a no-show on the ride out, the ride home is usually not needed either. MTM’s driver app takes the trip off the driver’s assignment when a no-show is marked, but confirm with each broker whether the return leg is cancelled too, and cancel it on your own schedule.

How legs are billed

Arizona’s fee-for-service program is a clear example of paying a base rate plus loaded miles for each trip. Arizona bills the number of trips as base rate units on the first claim line and total loaded miles on the second, so two trips for one member in a day are two units. Colorado adds modifier 76 for a member’s multiple trips in one day with the same provider, and 77 when different providers ran them.

Extra stops are where legs get tricky. Minnesota providers “may not bill for separate base rates for the continuation of a trip beyond the original destination.” Arizona requires each segment of a multi-destination transport on the trip report, with address, times, and odometer readings. Before adding a stop, confirm the broker authorized it and how it will pay.

Tracking legs in HealthRide

In HealthRide, each leg of a round trip has its own status control, so you can cancel just the return leg. The trip log report lists every leg with scheduled versus actual times.