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Official Description

Therapeutic radiology treatment planning; complex

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Therapeutic radiology treatment planning is a critical process aimed at determining the most effective approach for delivering radiation therapy to a tumor while minimizing exposure to surrounding healthy tissues. This planning phase is essential for ensuring that the radiation oncologist or qualified healthcare professional can devise a tailored treatment strategy that addresses the specific characteristics of the patient's cancer. During this process, the healthcare provider conducts a comprehensive review of the patient's medical history, including records, pathology reports, and imaging studies. This information is supplemented by data gathered during the initial consultation with the patient.

In addition to reviewing existing records, the radiation oncologist may order and interpret special tests, develop computer-generated treatment plans, and conduct simulations to visualize the treatment approach. The planning process involves identifying the areas affected by the disease, determining the types and methods of radiation treatments to be utilized, and specifying the precise areas that will receive treatment. Furthermore, the sequencing of different treatment modalities is carefully considered, and any necessary treatment devices are designed or selected to optimize the delivery of radiation.

The radiation dose and duration of therapy are also critical components of the treatment plan, which is established prior to the initiation of any therapeutic interventions. As the treatment progresses, the initial plan is subject to review and modification to ensure that it remains aligned with the patient's evolving clinical status and treatment response. This meticulous planning process is essential for achieving the best possible outcomes in radiation therapy, particularly in complex cases that may require advanced techniques and equipment.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The indications for therapeutic radiology treatment planning, particularly for complex cases, include the following:

  • Malignant Tumors The primary indication for this procedure is the presence of malignant tumors that require targeted radiation therapy to control or eliminate cancerous cells.
  • Complex Treatment Needs Patients who have tumors that necessitate intricate treatment strategies, such as those involving multiple areas of interest or requiring specialized radiation techniques, are candidates for this planning.
  • Prior Treatment Evaluation Patients who have previously undergone radiation therapy and require a new treatment plan due to recurrence or progression of disease may also be indicated for complex treatment planning.

2. Procedure

The procedure for therapeutic radiology treatment planning, particularly for complex cases, involves several detailed steps:

  • Step 1: Review of Patient Records The radiation oncologist begins by thoroughly reviewing the patient's medical history, including previous treatments, pathology reports, and imaging studies. This comprehensive assessment is crucial for understanding the patient's condition and planning the appropriate treatment.
  • Step 2: Initial Consultation During the initial consultation, the healthcare provider gathers additional information from the patient, which may include symptoms, concerns, and preferences regarding treatment. This dialogue helps to tailor the treatment plan to the individual patient's needs.
  • Step 3: Ordering and Interpreting Tests The oncologist may order special tests or imaging studies to gather more precise data about the tumor's characteristics and its relationship to surrounding tissues. This information is vital for effective planning.
  • Step 4: Treatment Area Identification The healthcare provider identifies the disease-bearing areas that require treatment. This step involves determining the exact locations of the tumors and any adjacent tissues that may be affected.
  • Step 5: Selection of Treatment Methods The oncologist specifies the types and methods of radiation treatments to be employed, which may include various techniques such as custom shields, tangential ports, or special wedges, depending on the complexity of the case.
  • Step 6: Treatment Sequencing The sequencing of the treatment modalities is carefully planned to optimize the effectiveness of the therapy while minimizing side effects. This may involve scheduling multiple treatment sessions or combining different types of radiation.
  • Step 7: Design of Treatment Devices Any necessary treatment devices, such as custom blocks or shields, are designed or selected to ensure precise delivery of radiation to the targeted areas while protecting healthy tissues.
  • Step 8: Specification of Radiation Dose The oncologist specifies the radiation dose and duration of therapy, which are critical for achieving the desired therapeutic effect while minimizing potential harm to normal tissues.
  • Step 9: Plan Review and Modification The initial treatment plan is created prior to the start of therapy, but it is subject to ongoing review and modification as needed throughout the course of treatment to adapt to the patient's response and any changes in their condition.

3. Post-Procedure

After the therapeutic radiology treatment planning is completed, the patient may be scheduled for the initiation of radiation therapy based on the established plan. Continuous monitoring and assessment of the patient's response to treatment are essential, and adjustments to the plan may be made as necessary. The healthcare team will provide guidance on any post-procedure care, including managing side effects and ensuring that the patient understands the treatment process. Regular follow-up appointments will be necessary to evaluate the effectiveness of the therapy and to make any required modifications to the treatment plan.

Short Descr THER RADIOLOGY TX PLNG CPLX
Medium Descr THERAPEUTIC RADIOLOGY TX PLANNING COMPLEX
Long Descr Therapeutic radiology treatment planning; complex
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 2 - Professional Component Only Code
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Code Not Recognized by OPPS when submitted on Outpatient Hospital Part B Bill Type (12x/13x)
Type of Service (TOS) 6 - Therapeutic Radiology
Berenson-Eggers TOS (BETOS) P7A - Oncology - radiation therapy
MUE 1
CCS Clinical Classification 211 - Therapeutic radiology
GC This service has been performed in part by a resident under the direction of a teaching physician
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
CR Catastrophe/disaster related
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
GW Service not related to the hospice patient's terminal condition
PN Non-excepted service provided at an off-campus, outpatient, provider-based department of a hospital
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
PO Excepted service provided at an off-campus, outpatient, provider-based department of a hospital
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
95 Synchronous telemedicine service rendered via a real-time interactive audio and video telecommunications system: synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that would be sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. modifier 95 may only be appended to the services listed in appendix p. appendix p is the list of cpt codes for services that are typically performed face-to-face, but may be rendered via a real-time (synchronous) interactive audio and video telecommunications system.
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
25 Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure or other service: it may be necessary to indicate that on the day a procedure or service identified by a cpt code was performed, the patient's condition required a significant, separately identifiable e/m service above and beyond the other service provided or beyond the usual preoperative and postoperative care associated with the procedure that was performed. a significant, separately identifiable e/m service is defined or substantiated by documentation that satisfies the relevant criteria for the respective e/m service to be reported (see evaluation and management services guidelines for instructions on determining level of e/m service). the e/m service may be prompted by the symptom or condition for which the procedure and/or service was provided. as such, different diagnoses are not required for reporting of the e/m services on the same date. this circumstance may be reported by adding modifier 25 to the appropriate level of e/m service. note: this modifier is not used to report an e/m service that resulted in a decision to perform surgery. see modifier 57 for significant, separately identifiable non-e/m services, see modifier 59.
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
93 Synchronous telemedicine service rendered via telephone or other real-time interactive audio-only telecommunications system : synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located away at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that is sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AR Physician provider services in a physician scarcity area
GA Waiver of liability statement issued as required by payer policy, individual case
GT Via interactive audio and video telecommunication systems
GZ Item or service expected to be denied as not reasonable and necessary
LT Left side (used to identify procedures performed on the left side of the body)
PD Diagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 days
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
Q5 Service furnished under a reciprocal billing arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
QJ Services/items provided to a prisoner or patient in state or local custody, however the state or local government, as applicable, meets the requirements in 42 cfr 411.4 (b)
RT Right side (used to identify procedures performed on the right side of the body)
SA Nurse practitioner rendering service in collaboration with a physician
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Pre-1990 Added Code added.
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