## **What is the HCPCS code A0429 for?**
The HCPCS code A0429 is under the Transportation Services, Including Ambulance, Medical & Surgical Supplies category of HCPCS codes. It's intended to designate an ambulance service for emergencies, and this ambulance service also comes with basic life support, meaning it is equipped with necessary supplies and has staff who will stabilize and care for the beneficiary (e.g., CPR, oxygen, bleeding control, splinting, etc.) as they make their way to the nearest medical facility.
Please note that this is meant to be provided to beneficiaries with any of the following problems or indications:
- Those who are having difficulty breathing
- Those who have just suffered a major physical trauma or accident, especially those who are unconscious
- Those who had a cardiac arrest
- Major respiratory distress
- Severe allergic reactions
This code covers the transport from the pickup location to the drop-off at the receiving facility.
## **Documentation requirements for A0429**
As with any HCPCS code, you'll need sufficient documentation before filing a claim. For this code in particular, here are some of what you'll need:
- The full name of the patient
- The full names and credentials of the ambulance staff/healthcare providers who transported the patient
- Documentation of the patient's condition to justify the medical necessity
- The origin and destination clearly documented
- Run sheet or trip report from the EMS, showing interventions provided and the patient's status (and any changes) throughout the transport until the dropoff point
- Reason as to why transport by other means was contraindicated (the patient could not safely be transported by car, wheelchair, van, etc.)
## **Billing requirements for A0429**
Besides the documentation requirements above, please make sure to take note of or have the following:
- This is a one-way transport. 1 unit is equal to 1 transport
- Please also use the HCPCS code A0425 - Ground mileage, per statute mile, but bill it separately
- Please use the appropriate modifiers based on the origin and destination (e.g., RH= residence to hospital, NH = nursing home to hospital, etc.)
Please note that Medicare and most insurers cover this if the transport meets medical necessity and emergency criteria. Non-emergency BLS transports would be billed with A0428.
Please access and review all the necessary coding guidelines and related policy articles relative to the insurance entity and locality your account is tied to, so you can practice correct coding guidelines, become aware of the payment rates, and avoid claim rejections.
## **Other similar and related codes**
- **A0425** - Ground mileage, per statute mile
- **A0427** - Ambulance service, advanced life support, emergency transport, level 1 (als 1 - emergency)
- **A0428** - Ambulance service, basic life support, non-emergency transport, (bls)
- **A0430** - Ambulance service, conventional air services, transport, one way (fixed wing)
- **A0434** - Specialty care transport (sct)
Frequently asked questions
