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Official Description

Respiratory motion management simulation (List separately in addition to code for primary procedure)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Respiratory motion management simulation is a critical component in the treatment planning phase of radiation therapy, particularly for patients with malignant neoplasms. This procedure addresses the inherent challenge posed by the movement of organs within the chest, upper abdominal region, and retroperitoneum during the breathing cycle. As individuals breathe, their respiratory motion can vary significantly, affecting the positioning of tumors and surrounding tissues. This variability can manifest in different magnitudes, lengths, and regularities of breathing patterns, which can complicate the accuracy of radiation delivery. The simulation process involves tracking the movement of the tumor, the host organ where the tumor resides, and adjacent structures to ensure precise targeting during treatment. Various imaging modalities, including ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), and fluoroscopic imaging, are employed to detect and analyze organ motion. A two-dimensional (2-D) motion management simulation can be created using fluoroscopy, while a more complex three-dimensional (3-D) reconstruction requires simultaneous projections to visualize the tumor, host organ, and surrogate markers, such as fiducial markers or radiographic tracers. The data obtained from this simulation is essential for tailoring the radiation treatment plan to accommodate the patient's unique respiratory patterns, thereby enhancing the effectiveness of the therapy and minimizing potential damage to surrounding healthy tissues.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Respiratory motion management simulation is indicated for use in the treatment planning of radiation therapy for patients diagnosed with malignant neoplasms. The following conditions and symptoms may warrant the use of this procedure:

  • Malignant Neoplasm Patients with tumors located in the chest, upper abdominal region, or retroperitoneum that are subject to respiratory motion.
  • Variable Breathing Patterns Individuals exhibiting significant variability in their breathing patterns, including differences in magnitude, length, and regularity during imaging and treatment sessions.
  • Need for Precision in Radiation Delivery Situations where precise targeting of the tumor is critical to minimize exposure to surrounding healthy tissues.

2. Procedure

The procedure for respiratory motion management simulation involves several key steps to ensure accurate assessment and planning for radiation therapy. Each step is designed to capture the dynamic nature of organ movement during respiration.

  • Step 1: Patient Preparation The patient is positioned appropriately for imaging, ensuring comfort and stability to facilitate accurate respiratory motion tracking. This may involve the use of immobilization devices to minimize movement during the simulation process.
  • Step 2: Imaging Acquisition Various imaging modalities, such as ultrasound, CT, MRI, or fluoroscopy, are utilized to capture the movement of the tumor and surrounding organs. The choice of imaging technique may depend on the specific clinical scenario and the anatomical location of the tumor.
  • Step 3: Motion Tracking The imaging data is analyzed to track the respiratory motion of the tumor and host organ. This involves identifying the patterns of movement and any variations that occur during the patient's breathing cycle.
  • Step 4: 2-D and 3-D Reconstruction A two-dimensional (2-D) motion management simulation is created using fluoroscopic imaging. For a more comprehensive analysis, a three-dimensional (3-D) reconstruction is performed, which requires simultaneous projections to visualize the tumor, host organ, and any surrogate markers that may be present.
  • Step 5: Data Integration The information obtained from the respiratory motion management simulation is integrated with other clinical treatment planning modalities. This data is crucial for modifying and individualizing the radiation treatment plan to accommodate the patient's specific respiratory motion patterns.

3. Post-Procedure

After the respiratory motion management simulation is completed, the patient may be monitored for any immediate effects related to the imaging process. There are typically no specific post-procedure care requirements, as the simulation is a non-invasive procedure. However, the healthcare team will review the simulation results and incorporate the findings into the overall radiation treatment plan. Patients may be scheduled for follow-up appointments to discuss the treatment plan and any further steps in their care. It is essential to ensure that the patient understands the importance of the simulation data in optimizing their radiation therapy and to address any questions or concerns they may have regarding the upcoming treatment.

Short Descr RESPIRATOR MOTION MGMT SIMUL
Medium Descr RESPIRATORY MOTION MANAGEMENT SIMULATION
Long Descr Respiratory motion management simulation (List separately in addition to code for primary procedure)
Status Code Active Code
Global Days ZZZ - Code Related to Another Service
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
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 Items and Services Packaged into APC Rates
ASC Payment Indicator Packaged service/item; no separate payment made.
Type of Service (TOS) 6 - Therapeutic Radiology
Berenson-Eggers TOS (BETOS) T2D - Other tests - other
MUE 1

This is an add-on code that must be used in conjunction with one of these primary codes.

77295 Resequenced Code MPFS Status: Active Code APC S ASC Z3 Physician Quality Reporting PUB 100 CPT Assistant Article 3-dimensional radiotherapy plan, including dose-volume histograms
77301 MPFS Status: Active Code APC S ASC Z2 PUB 100 CPT Assistant Article Intensity modulated radiotherapy plan, including dose-volume histograms for target and critical structure partial tolerance specifications
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.
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
TC Technical component; under certain circumstances, a charge may be made for the technical component alone; under those circumstances the technical component charge is identified by adding modifier 'tc' to the usual procedure number; technical component charges are institutional charges and not billed separately by physicians; however, portable x-ray suppliers only bill for technical component and should utilize modifier tc; the charge data from portable x-ray suppliers will then be used to build customary and prevailing profiles
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
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
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
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
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.
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.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
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
PN Non-excepted service provided at an off-campus, outpatient, provider-based department of a hospital
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
RT Right side (used to identify procedures performed on the right side of the body)
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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2014-01-01 Added Added
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