GF HCPCS Level II modifier: Non-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns)…
GF is a HCPCS Level II modifier: “Non-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns), physician assistant (pa)) services in a….” It adds this detail to the code it is reported with.
Official description
GFNon-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns), physician assistant (pa)) services in a critical access hospital
Short description: Nonphysician serv c a hosp
HCPCS · United States
Medicare details
The indicators CMS publishes with GF in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Apr 1, 2003
Where GF sits
- 1GroupHCPCS modifiers
- 2Modifier GFNon-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns), physician assistant (pa)) services in a critical access hospital
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 GF mean?
GF is the HCPCS code for “Non-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns), physician assistant (pa)) services in a critical access hospital” in CMS’s HCPCS Level II October 2026 release.
Where is GF in the HCPCS Level II list?
GF is listed under Modifiers.
Does Medicare cover GF?
CMS lists GF’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 GF
All modifiersG9Monitored anesthesia care for patient who has history of severe cardio-pulmonary conditionGAWaiver of liability statement issued as required by payer policy, individual caseGBClaim being re-submitted for payment because it is no longer covered under a global payment demonstrationGCThis service has been performed in part by a resident under the direction of a teaching physicianGDUnits of service exceeds medically unlikely edit value and represents reasonable and necessary servicesGEThis service has been performed by a resident without the presence of a teaching physician under the primary care exceptionGGPerformance and payment of a screening mammogram and diagnostic mammogram on the same patient, same dayGHDiagnostic mammogram converted from screening mammogram on same dayGJ"opt out" physician or practitioner emergency or urgent serviceGKReasonable and necessary item/service associated with a ga or gz modifierGLMedically unnecessary upgrade provided instead of non-upgraded item, no charge, no advance beneficiary notice (abn)GMMultiple patients on one ambulance trip