MCMCB Pro
HCPCSG0000–G9999

HCPCS GProcedures and Professional Services (Temporary)

CMS's own codes for services with no CPT equivalent, or where Medicare wants different rules. Temporary in name only — many have been in use for decades.

2,010 codes in the current CMS release, 1,275 of them still active.

HCPCS Level II2026Q3-Jul· effective July 1, 2026