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Official Description

Magnetic resonance (eg, proton) imaging, spinal canal and contents, thoracic; with contrast material(s)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Magnetic resonance imaging (MRI) is a sophisticated imaging technique utilized to visualize the thoracic spinal canal and its contents. This noninvasive procedure employs the magnetic properties of hydrogen nuclei present in the body, allowing for detailed imaging without the use of ionizing radiation. During an MRI, a powerful magnetic field is generated, which causes the hydrogen atoms in the body to align with the magnetic field. Subsequently, radiowaves are transmitted into this magnetic field, prompting the protons within the hydrogen nuclei to emit specific radiofrequency signals. These signals are captured by a computer, which processes the data to produce high-resolution tomographic images in three-dimensional slices. The patient undergoing this procedure is positioned on a motorized table that moves into a large MRI scanner, often referred to as a tunnel, which houses the magnet. MRI scans of the thoracic spine are typically indicated when conservative treatments for back or neck pain have proven ineffective, prompting the need for further investigation or consideration of more aggressive treatment options. In the context of CPT® Code 72147, the procedure involves the administration of contrast material, which enhances the visibility of the spinal structures, allowing for a more comprehensive assessment. This is in contrast to CPT® Code 72146, where no contrast medium is utilized. The physician analyzes the resulting images to identify various conditions that may be contributing to the patient's symptoms, including abnormal spinal alignment, vertebral body diseases or injuries, intervertebral disc issues such as herniation or degeneration, the adequacy of the spinal canal for accommodating the spinal cord and nerve roots, and any signs of nerve compression or inflammation, as well as monitoring for changes post-surgery.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Magnetic resonance imaging (MRI) of the thoracic spinal canal and contents is performed for several specific indications, particularly when conservative treatment options have not yielded satisfactory results. The following conditions may warrant the use of this imaging technique:

  • Back or Neck Pain - Persistent pain that does not respond to conservative management may necessitate further investigation to identify underlying causes.
  • Abnormal Spinal Alignment - MRI can help assess any deviations from normal spinal curvature or alignment that may be contributing to symptoms.
  • Vertebral Body Disease or Injury - Conditions affecting the vertebrae, such as fractures or infections, can be evaluated through MRI.
  • Intervertebral Disc Issues - MRI is useful for diagnosing herniation, degeneration, or dehydration of intervertebral discs.
  • Spinal Canal Size Assessment - The imaging can determine if the spinal canal is adequately sized to accommodate the spinal cord and nerve roots.
  • Nerve Compression or Inflammation - MRI can identify pinched or inflamed nerves that may be causing pain or neurological symptoms.
  • Post-Surgical Evaluation - Following spinal surgery, MRI can be used to monitor for any changes or complications that may arise.

2. Procedure

The procedure for conducting an MRI of the thoracic spinal canal and contents with contrast material involves several key steps to ensure accurate imaging and patient safety. The following outlines the procedural steps:

  • Step 1: Patient Preparation - The patient is informed about the procedure, including the use of contrast material. They may be asked to remove any metal objects and change into a gown to prevent interference with the MRI.
  • Step 2: Contrast Administration - An intravenous (IV) line is established, and a contrast dye is administered to enhance the visibility of the spinal structures during imaging. This step is crucial for obtaining clearer images of the thoracic spine.
  • Step 3: Positioning - The patient is positioned on a motorized table, which is then moved into the MRI scanner. Proper alignment is essential to ensure that the thoracic spine is adequately captured in the imaging process.
  • Step 4: Imaging Process - Once the patient is in position, the MRI machine is activated. The powerful magnetic field and radiowaves are utilized to capture detailed images of the thoracic spinal canal and its contents. The patient may be instructed to remain still during this phase to avoid motion artifacts in the images.
  • Step 5: Image Acquisition - The MRI machine collects data and produces high-resolution images of the thoracic spine, which are then processed by the computer to create tomographic slices for analysis.
  • Step 6: Post-Procedure Monitoring - After the imaging is complete, the patient is monitored briefly to ensure there are no adverse reactions to the contrast material. They may then be allowed to resume normal activities unless otherwise instructed.

3. Post-Procedure

Following the MRI procedure, patients are typically monitored for any immediate reactions to the contrast material. It is important for healthcare providers to assess the patient’s condition and provide any necessary post-procedure instructions. Patients may be advised to drink plenty of fluids to help flush the contrast dye from their system. The physician will review the images obtained during the MRI to identify any abnormalities or conditions that may require further intervention or treatment. Depending on the findings, follow-up appointments may be scheduled to discuss results and potential next steps in management.

Short Descr MRI CHEST SPINE W/DYE
Medium Descr MRI SPINAL CANAL THORACIC W/CONTRAST MATRL
Long Descr Magnetic resonance (eg, proton) imaging, spinal canal and contents, thoracic; with contrast material(s)
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 4 - Special payment adjustment rules on the technical component (TC) of multiple diagnostic imaging 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 88 -
APC Status Indicator Codes That May Be Paid Through a Composite APC
ASC Payment Indicator Radiology service paid separately when provided integral to a surgical procedure on ASC list; payment based on MPFS nonfacility PE RVUs.
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) I2D - Advanced imaging - MRI/MRA: other
MUE 1
CCS Clinical Classification 198 - Magnetic resonance imaging

This is a primary code that can be used with these additional add-on codes.

0649T Add-on Code MPFS Status: Carrier Priced APC S Quantitative magnetic resonance for analysis of tissue composition (eg, fat, iron, water content), including multiparametric data acquisition, data preparation and transmission, interpretation and report, obtained with diagnostic MRI examination of the same anatomy (eg, organ, gland, tissue, target structure); single organ (List separately in addition to code for primary procedure)
0698T Add-on Code Resequenced Code MPFS Status: Carrier Priced APC S ASC Z2 Quantitative magnetic resonance for analysis of tissue composition (eg, fat, iron, water content), including multiparametric data acquisition, data preparation and transmission, interpretation and report, obtained with diagnostic MRI examination of the same anatomy (eg, organ, gland, tissue, target structure); multiple organs (List separately in addition to code for primary procedure)
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.
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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
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
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.
MH Unknown if ordering professional consulted a clinical decision support mechanism for this service, related information was not provided to the furnishing professional or provider
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
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.
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.
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CR Catastrophe/disaster related
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
GW Service not related to the hospice patient's terminal condition
GZ Item or service expected to be denied as not reasonable and necessary
MA Ordering professional is not required to consult a clinical decision support mechanism due to service being rendered to a patient with a suspected or confirmed emergency medical condition
MC Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of electronic health record or clinical decision support mechanism vendor issues
ME The order for this service adheres to appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
MF The order for this service does not adhere to the appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
MG The order for this service does not have applicable appropriate use criteria in the qualified clinical decision support mechanism consulted by the ordering professional
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
QQ Ordering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing professional
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
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
Date
Action
Notes
2021-01-01 Note Guidelines changed.
1990-01-01 Added First appearance in code book in 1990.
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