2025 CPT code 77285
Effective Date: N/A Radiology Procedures > Radiation Oncology Treatment Feed
Therapeutic radiology simulation-aided field setting; intermediate.
Modifiers 26 and TC can be used to indicate the professional and technical components, respectively.Other modifiers, such as 52, 53, etc. may also apply if applicable to the case.
Medical necessity for this procedure must be established by demonstrating the need for radiation therapy and the complexity of the treatment plan requiring intermediate simulation-aided field setting.
The radiation oncologist is responsible for performing the simulation and determining the appropriate field settings for the radiation therapy.
In simple words: This procedure uses imaging technology to map out the precise areas to be targeted during radiation therapy, ensuring that the radiation effectively treats the tumor while minimizing harm to healthy tissues.
This code represents the process of using a simulator or other imaging modality to determine the size and location of ports for radiation therapy, involving intermediate complexity. This includes cases with two separate treatment areas, three or more converging ports, multiple blocks, or special time-dose constraints.
Example 1: A patient with a tumor in the lung requiring multiple converging ports for targeted radiation delivery., A patient with two separate tumor sites requiring separate treatment plans and simulations., A patient requiring multiple blocks to shield healthy organs during radiation therapy.
Documentation should include the details of the simulation, the location and size of the treatment ports, the type of imaging modality used, the use of any blocks or other shielding devices, and the time-dose constraints used.
- Modifier TC rule: Modifier TC can be applied when reporting only the technical component of the service.
- Specialties:Radiation Oncology
- Place of Service:"Office", "Outpatient Hospital", "Independent Clinic", etc.