QM HCPCS Level II modifier: Ambulance service provided under arrangement by a provider of services

QM is a HCPCS Level II modifier: “Ambulance service provided under arrangement by a provider of services.” It adds this detail to the code it is reported with.

Official description

QM

Ambulance service provided under arrangement by a provider of services

Short description: Ambulance arr by provider

HCPCS · United States

Medicare details

The indicators CMS publishes with QM in its October 2026 file. They describe Medicare’s handling, not another payer’s.

Medicare coverage
Carrier judgment
Added
Jan 1, 1996

Where QM sits

  1. 1GroupHCPCS modifiers
  2. 2Modifier QMAmbulance service provided under arrangement by a provider of services

Source and release

Data release
HCPCS Level II · October 2026
Effective date
Oct 1, 2026
Publisher
CMS

This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does HCPCS code QM mean?

QM is the HCPCS code for “Ambulance service provided under arrangement by a provider of services” in CMS’s HCPCS Level II October 2026 release.

Where is QM in the HCPCS Level II list?

QM is listed under Modifiers.

Does Medicare cover QM?

CMS lists QM’s Medicare coverage as “Carrier judgment”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.

Which HCPCS Level II release does this page use?

It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.