"C" CODES ARE UNIQUE TEMPORARY PRICING CODES THAT WERE INITIALLY ESTABLISHED BY CMS FOR THE HOSPITAL OUTPATIENT PROSPECTIVE PAYMENT SYSTEM (OPPS). THE "C" CODES ARE USED ON MEDICARE OPPS CLAIMS BUT MAY ALSO BE RECOGNIZED ON CLAIMS FROM OTHER PROVIDERS OR BY OTHER PAYMENT SYSTEMS.
CMS — ICD-10-PCS FY2026, HCPCS Level II october 2026, Procedure Codes 2026.