Certain procedures involve a combination of a professional component and a technical component. For example, the professional component of a radiology service includes the professional provider's supervision of the radiology technician and the interpretation by the professional provider of the radiology service. The technical component of the radiology service includes the work of the radiology technician and the overhead costs associated with the radiology service. Other procedures may consist of either a professional component only (e.g., office visits) or a technical component only (e.g., flow cytometry codes) indicated.
The Centers for Medicare & Medicaid Services (CMS) maintains the Medicare Physician Fee Schedule Database indicators for professional components (PC) and technical components (TC). These indicators establish the appropriate reporting of procedure codes for component services (PC/TC). When it is appropriate to report PC or TC services, the corresponding modifier (Modifier 26 [professional component] or Modifier TC [technical component]) is appended to the procedure code.
The professional component (PC) is the portion of the procedure or service performed by a professional provider, which includes the interpretation, analysis, and a detailed signed written report of the results of the procedure or service.
The technical component (TC) comprises the portion of the procedure or service performed by a technician or other non-provider personnel and the equipment used for the procedure or service and, in most cases, the ownership of the equipment used for the procedure or service. The TC does not involve any direct physician care.
Global service refers to procedure codes that include both the professional and technical components. These procedure codes, when reported without the modifier for the professional component (26) or the modifier for the technical component (TC), are considered to be global services. Alternatively, when these procedure codes are reported with either Modifier (26 or TC), they are considered to be reported for the corresponding component, only. Global service codes are never reported with both modifiers to indicate that the global service has been performed. The term global services does not refer to a reimbursement mechanism or to a time period associated with a surgical procedure.