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G0294 Non-cov proc, clinical trial

What G0294 is

Noncovered procedure(s) using either no anesthesia or local anesthesia only, in a medicare qualifying clinical trial, per day

HCPCS Level II long description, CMS October 2026 file. See the G codes page for the full section.

Medicare payment for G0294 (CY2026)

This code has no Physician Fee Schedule rate: Excluded from the Physician Fee Schedule (paid under another system or not priced here). It may be paid under a different fee schedule (clinical laboratory, DMEPOS, anesthesia) or not paid at all - check the relevant CMS schedule.

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Medically Unlikely Edit (MUE)

Medicare caps G0294 at 1 unit per date of service for practitioner claims (MAI 2 - date of service edit (absolute): units above the MUE never pay), rationale: Code Descriptor / CPT Instruction. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with G0294? These codes are bundled into it

G0294 is a Column 1 code in 3 active NCCI PTP edits. When one of these Column 2 codes is reported on the same date of service, it is denied as bundled - unless the edit's modifier indicator is 1 and documentation supports a distinct service with an NCCI-associated modifier.

Column 2 codeShort descriptionModifier indicator
36591Draw blood off venous device0 - no modifier bypassCheck pair
36592Collect blood from picc0 - no modifier bypassCheck pair
96523Irrig drug delivery device0 - no modifier bypassCheck pair

Data: CMS CY2026 Physician Fee Schedule RVU file (October release, RVU26D) and Medicare NCCI PTP practitioner edits v32.3 (2026 Q4). Verify against the official files before billing or contracting decisions.