QX HCPCS Level II modifier: Crna service: with medical direction by a physician
QX is a HCPCS Level II modifier: “Crna service: with medical direction by a physician.” It adds this detail to the code it is reported with.
Official description
QXCrna service: with medical direction by a physician
Short description: Crna svc w/ md med direction
HCPCS · United States
Medicare details
The indicators CMS publishes with QX in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 1993
Where QX sits
- 1GroupHCPCS modifiers
- 2Modifier QXCrna service: with medical direction by a physician
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 QX mean?
QX is the HCPCS code for “Crna service: with medical direction by a physician” in CMS’s HCPCS Level II October 2026 release.
Where is QX in the HCPCS Level II list?
QX is listed under Modifiers.
Does Medicare cover QX?
CMS lists QX’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.
Codes beside QX
All modifiersQPDocumentation 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…QQOrdering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing professionalQRPrescribed 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)QSMonitored anesthesia care serviceQTRecording and storage on tape by an analog tape recorderQWClia waived testQYMedical direction of one certified registered nurse anesthetist (crna) by an anesthesiologistQZCrna service: without medical direction by a physicianRAReplacement of a dme, orthotic or prosthetic itemRBReplacement of a part of a dme, orthotic or prosthetic item furnished as part of a repairRCRight coronary arteryRDDrug provided to beneficiary, but not administered "incident-to"