CurrentBlue Cross Blue Shield - MassachusettsPolicy 146

Non‑emergent Ground Ambulance Transport Coverage Criteria

Defines medical necessity, prior authorization, and coding guidance for non‑emergent ground ambulance services for Blue Cross Blue Shield of Massachusetts commercial members (HMO, POS, PPO, Indemnity). Affects providers requesting or billing ambulance transports for these members.

Policy Summary

PayerBlue Cross Blue Shield - Massachusetts

PolicyNon‑emergent Ground Ambulance Transport Coverage Criteria

Policy CodePolicy 146

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

Key ActionSubmit prior authorization requests via Authorization Manager with servicing provider and facility NPIs for inpatient and specified outpatient non‑emergent transports.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

Preauth requiredPrior authorization rule

Managed Care HMOOutpatient prior auth

A0426, A0428HCPCS codes

Bed‑confinedMedically necessary definition

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Coverage Criteria for Non‑Emergent Ground Ambulance

Medically necessary non‑emergent ambulance transport

Covered when ALL of the following are met

Bed confinement and functional status: Member is unable to get out of bed without assistance and is bed-confined (defined as unable to ambulate and unable to sit in a chair or wheelchair).

Transport risk: Transportation using a mode other than an ambulance will precipitate an adverse event or would be medically contraindicated.

Destination: Transportation is to a covered destination.

Clinical justification: Diagnosis and present clinical condition justify ambulance transport.

Non‑emergent ground ambulance transport is NOT MEDICALLY NECESSARY when the transport is for convenience rather than clinical need. Examples include transport requested for the member’s convenience, for the convenience of the doctor or staff, or for the convenience of the member’s family. The policy further specifies that ambulance transport is not necessary when the member can be moved by a wheelchair, special van, or other non‑ambulance means, or when the member is not bed‑confined.

Non‑emergent ambulance transport will be considered NOT MEDICALLY NECESSARY if any of the following apply: the member is not bed‑confined, the member can be transported by wheelchair or a special van or other non‑ambulance means, the transport is for the convenience of the member, provider, or staff, or the transport is between residences (for example: home to residential facility, residential facility to home, or between residential facilities). The presence of any one of these conditions is sufficient to deny medical necessity for non‑emergent ground ambulance claims.

Coding and Modifiers

HCPCS CodesHCPCSCovered

A0426	Ambulance service, advanced life support, non‑emergency transport, level 1 (ALS 1)
A0428	Ambulance service, basic life support, non‑emergency transport (BLS)

Transport purpose/place modifiers (non‑covered when used for non‑emergent)HCPCSNot Covered

DP	Diagnostic to medical doctor's office (MDO)
DS	Diagnostic to scene of accident
DX	Diagnostic to intermediate stop
EP	Residential/custodial to medical doctor's office (MDO)
ER	Residential/custodial to residence
ES	Residential/custodial to scene of accident
HS	Hospital to scene of accident
HX	Hospital to intermediate stop
IR	Site of transfer (helicopter pad) to residence
NP	SNF to medical doctor's office (MDO)

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Provider Actions, Prior Authorization & Documentation

Prior Authorization

Prior Authorization Required

Precertification/preauthorization is required for inpatient services and for certain outpatient non‑emergent transports for Managed Care (HMO/POS) members. Check member product type and site of service before scheduling transport.

Preauthorization required for all inpatient ambulance transports (all products).
For Commercial Managed Care (HMO and POS) members, prior authorization is required for non‑emergent ambulance transports from a member's home/residence to a contracted facility or provider when performed outpatient.
Prior authorization is not required for emergency transports, non‑emergent ambulance transports between facilities when the patient is an inpatient, or involuntary transport to a psychiatric facility (Managed Care exceptions).
For Commercial PPO and Indemnity outpatient ground ambulance services, prior authorization is not required; air ambulances and all air ambulance claims require supporting documentation and medical necessity review.

Note

Provider Action: Submit Authorization Requests via Authorization Manager

Background and Scope

The purpose of non‑emergent ground ambulance transport is to provide medically necessary conveyance for members who are bed‑confined and cannot safely ambulate or sit in a chair or wheelchair. Transport by ambulance is appropriate only when alternative modes of travel would precipitate an adverse event or be medically contraindicated, the destination is a covered facility, and the member’s diagnosis and current clinical condition justify ambulance care.

Definitions

Bed‑confined — definition

DefinitionBed‑confined: unable to ambulate and unable to sit in a chair or wheelchair (member also unable to get out of bed without assistance).

Functional implicationMember cannot ambulate and cannot sit in a chair or wheelchair, therefore other modes of transport (wheelchair, van) are inappropriate.

Relevance to coverageBed‑confined status is a required criterion for non‑emergent ambulance transport to be considered medically necessary.

Member's residence — definition

DefinitionMember's residence: the place where the member makes their home and dwells permanently or for an extended period of time.

ScopeApplies when assessing outpatient prior authorization requirements for non‑emergent transports from a member's home or residence to a contracted facility (Managed Care HMO/POS).

Policy Summary

PayerBlue Cross Blue Shield - Massachusetts

PolicyNon‑emergent Ground Ambulance Transport Coverage Criteria

Policy CodePolicy 146

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

Key ActionSubmit prior authorization requests via Authorization Manager with servicing provider and facility NPIs for inpatient and specified outpatient non‑emergent transports.

SourceLink

On This Page

Providers must submit authorization requests using Authorization Manager and include required provider and facility identifiers. Enter the servicing provider's individual NPI/provider ID (not the group) and the facility's NPI/provider ID where services will be performed. Include all clinical documentation to support medical necessity when requesting authorization.

Use Authorization Manager (available 24/7) for initial authorization requests, document submission, and case status checks.
Include surgeon/servicing provider NPI or provider ID (individual), and the facility NPI/provider ID.
Attach clinical documentation supporting medical necessity with the authorization request.

Documentation Required

Required Documentation and Coding

Providers must report services using current procedure, revenue, and diagnosis codes and submit supporting clinical documentation with claims and authorization requests to justify medical necessity.

Report all services with the most up-to-date industry-standard CPT/HCPCS and ICD-10 codes, including applicable modifiers.
Include supporting documentation that demonstrates the member met medical necessity criteria (e.g., bed-confined status, inability to ambulate or sit, reason alternative transport would be contraindicated).
Examples of relevant HCPCS codes (informational): A0426 (ALS non-emergency transport), A0428 (BLS non-emergency transport).

Denial Risk

Triggers for Denial — Not Medically Necessary

Claims for non‑emergent ambulance transport may be denied as NOT MEDICALLY NECESSARY when the member is not bed‑confined or can be moved by alternative means.

Not medically necessary if transport is for convenience of member, family, or provider.
Not medically necessary if the member can be moved by wheelchair, special van, or other non‑ambulance means.
Not medically necessary if the member is not bed‑confined (able to ambulate or sit in a chair/wheelchair).
Not medically necessary for transports between residential facilities or between home and residential facility when not clinically necessary.

Coverage noteTransports originating from a member's residence may require prior authorization for certain product lines (see prior authorization rules).