G9057 Oncology; practice guidelines; management differs from guidelines as a result of patient enrollment in an institutional review board approved clinical trial (for use in a medicare-approved demonstration project)
Oncology; practice guidelines; management differs from guidelines as a result of patient enrollment in an institutional review board approved clinical trial (for use in a medicare-approved demonstration project)
Part
HCPCS Level II
G
Procedures and Professional Services (Temporary)
G9
G9001–G9999
Source
CMS — ICD-10-PCS FY2026, HCPCS Level II october 2026, Procedure Codes 2026.