G4 HCPCS Level II modifier: Most recent urr reading of 70 to 74.9
G4 is a HCPCS Level II modifier: “Most recent urr reading of 70 to 74.9.” It adds this detail to the code it is reported with.
Official description
G4Most recent urr reading of 70 to 74.9
Short description: Urr reading of 70 to 74.9
HCPCS · United States
Medicare details
The indicators CMS publishes with G4 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 1997
Where G4 sits
- 1GroupHCPCS modifiers
- 2Modifier G4Most recent urr reading of 70 to 74.9
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 G4 mean?
G4 is the HCPCS code for “Most recent urr reading of 70 to 74.9” in CMS’s HCPCS Level II October 2026 release.
Where is G4 in the HCPCS Level II list?
G4 is listed under Modifiers.
Does Medicare cover G4?
CMS lists G4’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 G4
All modifiersFXX-ray taken using filmFYX-ray taken using computed radiography technology/cassette-based imagingG0Telehealth services for diagnosis, evaluation, or treatment, of symptoms of an acute strokeG1Most recent urr reading of less than 60G2Most recent urr reading of 60 to 64.9G3Most recent urr reading of 65 to 69.9G5Most recent urr reading of 75 or greaterG6Esrd patient for whom less than six dialysis sessions have been provided in a monthG7Pregnancy resulted from rape or incest or pregnancy certified by physician as life threateningG8Monitored anesthesia care (mac) for deep complex, complicated, or markedly invasive surgical procedureG9Monitored anesthesia care for patient who has history of severe cardio-pulmonary conditionGAWaiver of liability statement issued as required by payer policy, individual case