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Official Description

Magnetic resonance imaging, breast, without and with contrast material(s), including computer-aided detection (CAD real-time lesion detection, characterization and pharmacokinetic analysis), when performed; bilateral

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Magnetic resonance imaging (MRI) of the breast is a sophisticated imaging technique that provides detailed visualizations of breast tissue. This procedure can be performed on one or both breasts, as indicated by the CPT® Code 77049. The MRI is conducted both without and with the administration of contrast material, which enhances the quality of the images obtained. The process utilizes the magnetic properties of hydrogen atoms present in the body, allowing for a non-invasive and non-radiating examination. When exposed to a strong magnetic field and radio waves, the hydrogen nuclei emit radiofrequency signals. These signals are then captured and processed by a computer, resulting in high-resolution, three-dimensional images of the breast's internal structures. During the MRI, patients may be positioned on a motorized table that moves into a large MRI tunnel. To ensure that the patient remains still throughout the imaging process, a sedative may be administered. The imaging procedure begins with the acquisition of images without contrast material, followed by the injection of contrast dye, which further enhances the visibility of certain areas within the breast. Additionally, the use of real-time computer-aided detection (CAD) technology may be employed. This advanced image-processing technique utilizes computer algorithms to analyze the MRI data, identifying and characterizing any lesions or suspicious areas within the breast. The CAD system marks regions of interest on the images, which may require further evaluation, although these markings do not automatically indicate the presence of malignancy. Overall, this comprehensive imaging approach is crucial for the early detection and characterization of breast abnormalities.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure of magnetic resonance imaging (MRI) of the breast, as described by CPT® Code 77049, is indicated for various clinical scenarios. The following conditions or symptoms may warrant the use of this imaging technique:

  • Breast Cancer Screening MRI is often utilized as a supplemental screening tool for women at high risk of breast cancer, particularly those with a family history or genetic predisposition.
  • Evaluation of Breast Abnormalities This imaging modality is indicated for further investigation of abnormalities detected through mammography or clinical examination, such as palpable masses or suspicious lesions.
  • Assessment of Treatment Response MRI can be used to monitor the effectiveness of treatment in patients with known breast cancer, providing insights into changes in tumor size or characteristics.
  • Preoperative Planning MRI assists in surgical planning by providing detailed anatomical information about the extent of disease, which is crucial for determining the appropriate surgical approach.
  • Characterization of Lesions The procedure is indicated for characterizing lesions that are indeterminate on other imaging modalities, helping to differentiate between benign and malignant conditions.

2. Procedure

The procedure for magnetic resonance imaging (MRI) of the breast involves several key steps, ensuring comprehensive imaging and analysis. The following outlines the procedural steps as per the CPT® Code 77049:

  • Step 1: Patient Preparation The patient is prepared for the MRI by explaining the procedure and ensuring that she is comfortable. A sedative may be administered to help the patient remain still during the imaging process. The patient is then positioned on a motorized table that will move into the MRI machine.
  • Step 2: Initial Imaging Without Contrast The MRI begins with the acquisition of images of the breast without the use of contrast material. This initial imaging provides baseline data and helps identify any obvious abnormalities.
  • Step 3: Administration of Contrast Material After the initial images are obtained, a contrast dye is injected into the patient’s bloodstream. This contrast material enhances the visibility of certain areas within the breast, allowing for better differentiation of tissues.
  • Step 4: Imaging With Contrast Following the administration of the contrast material, additional images are taken. This step is crucial as it allows for the assessment of how the contrast interacts with different tissues, which can indicate the presence of lesions or abnormalities.
  • Step 5: Computer-Aided Detection (CAD) Throughout the imaging process, real-time computer-aided detection (CAD) technology may be employed. This involves the use of computer algorithms to analyze the MRI data, identifying and characterizing any lesions or suspicious areas in the breast.
  • Step 6: Image Processing and Analysis The captured images are processed by the computer, which converts the radiofrequency signals into high-resolution, three-dimensional images. The CAD system marks regions of interest that may require further evaluation, although these markings do not necessarily indicate malignancy.

3. Post-Procedure

After the MRI procedure is completed, the patient may be monitored briefly to ensure there are no immediate adverse reactions to the contrast material. The images obtained during the MRI will be reviewed by a radiologist, who will interpret the findings and generate a report. This report will detail any abnormalities detected and provide recommendations for further evaluation or management if necessary. Patients are typically advised to resume normal activities following the procedure, as there are no significant recovery requirements associated with MRI. However, if a sedative was administered, the patient may need assistance getting home and should avoid driving or operating heavy machinery for the remainder of the day. Follow-up appointments may be scheduled to discuss the results and any further steps that may be needed based on the findings of the MRI.

Short Descr MRI BREAST C-+ W/CAD BI
Medium Descr MRI BREAST WITHOUT&WITH CONTRAST W/CAD BILATERAL
Long Descr Magnetic resonance imaging, breast, without and with contrast material(s), including computer-aided detection (CAD real-time lesion detection, characterization and pharmacokinetic analysis), when performed; bilateral
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) 2 - 150% payment adjustment 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 Code Not Recognized by OPPS when submitted on Outpatient Hospital Part B Bill Type (12x/13x)
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) none
MUE 1

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.
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
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
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
GC This service has been performed in part by a resident under the direction of a teaching physician
ME The order for this service adheres to appropriate use criteria in the clinical decision support mechanism consulted by the ordering professional
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
QQ Ordering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing 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
GA Waiver of liability statement issued as required by payer policy, individual case
GZ Item or service expected to be denied as not reasonable and necessary
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
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
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
CR Catastrophe/disaster related
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).
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.
GX Notice of liability issued, voluntary under payer policy
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) 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.
RT Right side (used to identify procedures performed on the right side of the body)
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).
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.
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
JZ Zero drug amount discarded/not administered to any patient
LT Left side (used to identify procedures performed on the left side of the body)
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
MB Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of insufficient internet access
MD Ordering professional is not required to consult a clinical decision support mechanism due to the significant hardship exception of extreme and uncontrollable circumstances
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
Q1 Routine 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
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
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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
2019-01-01 Added Added
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Description
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