HCPCS Level II modifier
Modifier QM
Modifier QM is a HCPCS Level II modifier. CMS describes it as: Ambulance service provided under arrangement by a provider of services.
Source: CMS HCPCS Level II, October 2026 file dated September 23, 2026. Publisher page
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- Modifier
- QM
- Type
- HCPCS Level II modifier, maintained by CMS
- CMS description
- Ambulance service provided under arrangement by a provider of services
- Claim form
- CMS-1500 item 24D, up to four modifiers per line. 837P SV101-3 to SV101-6.
- Guidance
- CMS HCPCS quarterly update
Related modifiers
- QNAmbulance service furnished directly by a provider of services
- QLPatient pronounced dead after ambulance called
- QPDocumentation is on file showing that the laboratory test(s) was ordered individually or ordered as a CPT-recognized panel other than automated profile codes 80002-80019, g0058, g0059, and g0060.
- QKMedical direction of two, three, or four concurrent anesthesia procedures involving qualified individuals
- QQOrdering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing professional
- QJServices/items provided to a prisoner or patient in state or local custody, however the state or local government, as applicable, meets the requirements in 42 cfr 411.4 (b)
- QRPrescribed amounts of stationary oxygen for daytime use while at rest and nighttime use differ and the average of the two amounts is greater than 4 liters per minute (LPM)
- QHOxygen conserving device is being used with an oxygen delivery system
Related pages
Questions
What does modifier QM mean?
Modifier QM is a HCPCS Level II modifier. CMS describes it as: Ambulance service provided under arrangement by a provider of services.
Is modifier QM a CPT or a HCPCS modifier?
QM is a HCPCS Level II modifier from the CMS quarterly HCPCS file. Two-digit numeric modifiers, such as 25 or 59, are CPT modifiers.
Where does modifier QM go on a claim?
On the CMS-1500 it goes in item 24D next to the procedure code. Each line holds up to four modifiers. On an 837P it goes in SV101-3 to SV101-6.
What denial comes back when a modifier is wrong?
A missing or mismatched modifier often comes back as CARC 4. A modifier that was not valid on the date of service comes back as CARC 182. A bundling edit the modifier should have bypassed comes back as CARC 97 or 236.