2025 CPT code 77770
(Active) Effective Date: N/A Radiology - Radiation Oncology Treatment Feed
Remote afterloading high dose rate radionuclide interstitial or intracavitary brachytherapy, includes basic dosimetry, when performed; 1 channel.
Modifiers may apply, refer to current year CPT guidelines
Medical necessity for this procedure must be established by demonstrating that it's the appropriate treatment for the type and stage of the cancer, considering alternative treatments and the patient's overall health.
The physician calculates the radiation dose, places the catheter, and manages the afterloading process, ensuring safe and effective delivery of the radioactive material.
In simple words: This procedure involves placing a small tube directly into or near the cancerous area. Through this tube, a high-energy radioactive substance is delivered to treat the tumor. This method is precise and minimizes radiation exposure to healthy tissues. The doctor also calculates the exact radiation dose needed.
This code describes a procedure where a single channel catheter is placed within cancerous tissue (interstitial) or a body cavity (intracavitary). A high dose rate radioactive substance is loaded into the catheter to treat tumors. The procedure includes calculating the radiation dose.
Example 1: A patient with cervical cancer undergoes brachytherapy where a single channel applicator is placed in the cervix, and a high dose rate radioactive source is remotely delivered to treat the tumor., A patient with prostate cancer receives interstitial brachytherapy using a single channel implant directly into the prostate gland, with a high dose rate radioactive source remotely delivered., A patient with endometrial cancer has a single channel intracavitary brachytherapy applicator placed in the uterus, and a high dose rate radioactive source is delivered to treat the tumor.
Documentation should include the type and location of the cancer, the number of channels used, the dose calculation, the time and duration of the treatment, and any complications.
- Revenue Code: P7A - ONCOLOGY - RADIATION THERAPY
- Payment Status: Active
- Modifier TC rule: Modifier TC is not applicable to this code
- Specialties:Radiation Oncology
- Place of Service:"Ambulatory Surgical Center", "On Campus-Outpatient Hospital", "Off Campus-Outpatient Hospital", "Inpatient Hospital", "Independent Clinic"