Coding Ahead
CasePilot
Medical Coding Assistant
Case2Code
Search and Code Lookup Tool
RedactPHI
HIPAA-Compliant PHI Redaction
DetectICD10CM
ICD-10-CM Code Detection
Log in Register free account
1 code page views remaining. Guest accounts are limited to 1 page view. Register free account to get 5 more views.
Log in Register free account

Official Description

Cardiac magnetic resonance imaging for velocity flow mapping (List separately in addition to code for primary procedure)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Cardiac magnetic resonance imaging (CMR) for velocity flow mapping is a specialized imaging technique used to assess blood flow and velocity within the heart and major blood vessels. This procedure is particularly valuable in diagnosing and evaluating various cardiovascular conditions. During a CMR study, clinicians utilize specific protocols to capture flow and velocity sequences, which are essential for understanding the dynamics of blood movement. These sequences are particularly useful in cases of valve disease, congenital heart defects, and other vascular anomalies, where accurate assessment of blood flow is critical for effective management and treatment planning. The captured data is then processed using advanced computer software that reconstructs the sequences into three-dimensional images, allowing for detailed visualization of blood flow patterns and velocities. This enhanced imaging facilitates a comprehensive analysis of cardiac function, enabling clinicians to interpret the results accurately. Ultimately, a detailed report summarizing the findings is generated, providing essential information for further clinical decision-making.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Velocity flow mapping is indicated for the evaluation of various cardiovascular conditions where understanding blood flow dynamics is crucial. The following conditions may warrant the use of this procedure:

  • Valve Disease - Conditions affecting the heart valves, such as stenosis or regurgitation, which can alter normal blood flow patterns.
  • Congenital Heart Disease - Structural heart defects present at birth that can impact blood flow and require detailed assessment.
  • Vascular Anomalies - Abnormalities in the blood vessels that may affect circulation and require evaluation of blood flow characteristics.

2. Procedure

The procedure for cardiac magnetic resonance imaging with velocity flow mapping involves several key steps to ensure accurate data collection and analysis. Each step is critical for obtaining high-quality images and flow measurements.

  • Step 1: Patient Preparation - The patient is positioned comfortably within the magnetic resonance imaging (MRI) machine. Appropriate safety protocols are followed to ensure the absence of contraindications, such as metallic implants or devices that may interfere with the MRI process.
  • Step 2: Sequence Acquisition - The clinician initiates the imaging sequences specifically designed for velocity flow mapping. These sequences are tailored to capture the dynamics of blood flow through the heart and great vessels, utilizing advanced MRI techniques to optimize image quality.
  • Step 3: Data Reconstruction - Once the sequences are acquired, they are processed using specialized software that reconstructs the data into three-dimensional images. This step is crucial for visualizing the flow patterns and velocities accurately.
  • Step 4: Analysis and Interpretation - The reconstructed images are analyzed to assess blood flow characteristics. Clinicians review the sequences, making adjustments as necessary to enhance visualization and ensure accurate quantification of cardiac function.
  • Step 5: Reporting Findings - After thorough analysis, a detailed report is generated, summarizing the findings from the velocity flow mapping. This report is essential for guiding further clinical decisions and management of the patient's condition.

3. Post-Procedure

Post-procedure care for patients undergoing cardiac magnetic resonance imaging with velocity flow mapping typically involves monitoring for any immediate reactions to the MRI process. Patients may be advised to resume normal activities unless otherwise directed by their healthcare provider. The results of the imaging study are usually discussed in a follow-up appointment, where the clinician will review the findings and recommend any necessary further evaluations or treatments based on the results obtained from the velocity flow mapping.

Short Descr CARD MRI VELOC FLOW MAPPING
Medium Descr CARDIAC MRI FOR VELOCITY FLOW MAPPING
Long Descr Cardiac magnetic resonance imaging for velocity flow mapping (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) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) I2D - Advanced imaging - MRI/MRA: other
MUE 4
CCS Clinical Classification 198 - Magnetic resonance imaging

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

75557 MPFS Status: Active Code APC Q3 ASC Z2 CPT Assistant Article Cardiac magnetic resonance imaging for morphology and function without contrast material;
75559 MPFS Status: Active Code APC Q3 ASC Z3 PUB 100 CPT Assistant Article Cardiac magnetic resonance imaging for morphology and function without contrast material; with stress imaging
75561 MPFS Status: Active Code APC Q3 ASC Z2 PUB 100 CPT Assistant Article Cardiac magnetic resonance imaging for morphology and function without contrast material(s), followed by contrast material(s) and further sequences;
75563 MPFS Status: Active Code APC Q3 ASC Z3 PUB 100 CPT Assistant Article Cardiac magnetic resonance imaging for morphology and function without contrast material(s), followed by contrast material(s) and further sequences; with stress imaging
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.
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
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
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
QQ Ordering professional consulted a qualified clinical decision support mechanism for this service and the related data was provided to the furnishing 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
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.
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
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).
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).
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.
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.
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
GW Service not related to the hospice patient's terminal condition
GZ Item or service expected to be denied as not reasonable and necessary
KX Requirements specified in the medical policy have been met
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
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
Q1 Routine 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)
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
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
2011-01-01 Changed Short description changed.
2010-01-01 Added -
Code
Description
Code
Description
Code
Description
Code
Description
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"