The Transport Justification section is where you record why the patient needed an ambulance instead of a car or a cab. For Medicare and many other payers, ambulance transport is only billable if it was medically necessary.

The Transport Justification section on the Billing tab for Medicare medical-necessity documentation.

The fields

  • Response Urgency — how urgent the response was.
  • Patient Transport Assessment — multi-select. Pick every mobility limitation that applied (for example, unable to sit, stand, or walk without assistance).
  • Ambulance Transport Reason Code — multi-select of the CMS ambulance transport reason codes.
  • Ambulance Conditions Indicator — multi-select of CMS condition indicators for the transport.
  • Round Trip Purpose — free text describing the reason for a round-trip transport.
  • Stretcher Purpose — free text describing why a stretcher was necessary.
  • Mileage to Closest Hospital — how far it was to the closest appropriate hospital.
  • ALS Assessment Performed & Warranted — whether an ALS assessment was performed and whether it was warranted.

Why this matters

Medicare audits ambulance claims for medical necessity. A claim with no documented justification can be denied or even clawed back months later. Your narrative should also support whatever justification you pick — they should agree.

Related billing sections

For scheduled non-emergency transports, fill in the Physician Certification Statement (PCS) as well. If the transport required prior authorization from the insurance company, record it in Authorization.

An example

You transport a patient with end-stage CHF on home oxygen. The patient cannot sit upright without becoming short of breath. In the Transport Justification section you pick the Patient Transport Assessment values that describe the patient's mobility limits, add an Ambulance Transport Reason Code that matches the trip, and fill in the other fields that apply. In your narrative you mention that the patient required 4 LPM oxygen continuously and could only tolerate a semi-Fowler's position. The two pieces of documentation back each other up.