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Official Description

Bone strength and fracture risk using finite element analysis of functional data and bone-mineral density utilizing data from a computed tomography scan; interpretation and report

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 0557T refers to a specialized procedure known as bone strength and fracture risk assessment using finite element analysis (FEA) of functional data and bone-mineral density, which is derived from a computed tomography (CT) scan. This procedure is particularly significant in the field of osteoporosis management and fracture risk evaluation. The technique employs biomechanical computed tomography (BCT) analysis, a non-invasive method that assesses the structural integrity or breaking strength of bones by integrating both the three-dimensional architecture of the bone and the distribution of bone density. By utilizing this advanced imaging technique, healthcare professionals can more accurately evaluate the effects of osteoporosis treatments and identify patients at risk of fractures earlier and with greater sensitivity compared to traditional methods such as dual energy X-ray absorptiometry (DXA). During the procedure, a finite element model of the bones, especially focusing on critical areas such as the hip and spine, is constructed. This model undergoes CT-based finite element model (CT/FEM) analysis, which is a sophisticated computational technique originally developed in engineering mechanics. It involves breaking down a complex structure into smaller, manageable elements, allowing for a detailed assessment of structural stress. Each element is analyzed individually, and the results are then recombined to provide a comprehensive evaluation of the entire structure. Through the use of specialized computer software that employs finite element algorithms, the model is subjected to simulated forces to estimate bone strength and identify conditions such as osteoporosis, fragile bone strength, and osteopenia. The interpretation and report generated from this analysis are crucial for guiding clinical decisions regarding patient management and treatment strategies.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 0557T is indicated for the assessment of bone strength and fracture risk in patients who may be at risk for osteoporosis or related conditions. The following conditions and scenarios warrant the use of this advanced analysis:

  • Osteoporosis Diagnosis Patients diagnosed with osteoporosis require ongoing evaluation of bone strength to monitor the effectiveness of treatment interventions.
  • Fracture Risk Assessment Individuals with a history of fractures or those exhibiting risk factors for fractures benefit from a detailed analysis of their bone integrity.
  • Monitoring Treatment Efficacy Patients undergoing osteoporosis drug treatment need to assess the impact of their therapy on bone strength and density over time.
  • Identification of Osteopenia Individuals identified with osteopenia may require further evaluation to determine their fracture risk and the need for preventive measures.

2. Procedure

The procedure for CPT® Code 0557T involves several key steps that ensure a comprehensive evaluation of bone strength and fracture risk:

  • Step 1: Patient Preparation The patient is positioned appropriately for the CT scan, ensuring that the area of interest, typically the hip or spine, is clearly visible for imaging. Proper positioning is crucial for obtaining accurate data.
  • Step 2: Computed Tomography Scan A CT scan is performed to capture detailed images of the bone structure. This imaging technique provides the necessary data regarding bone-mineral density and the three-dimensional architecture of the bones.
  • Step 3: Finite Element Model Creation Using the data obtained from the CT scan, a finite element model of the bones is constructed. This model represents the bone structure in a way that allows for detailed analysis of its mechanical properties.
  • Step 4: Finite Element Analysis The finite element model undergoes analysis using specialized software that applies virtual forces to the model. This step estimates the bone strength and identifies areas of potential weakness or risk for fracture.
  • Step 5: Interpretation and Reporting The results of the finite element analysis are interpreted, and a detailed report is generated. This report includes findings related to bone strength, fracture risk, and any recommendations for further management or treatment.

3. Post-Procedure

After the completion of the procedure associated with CPT® Code 0557T, the patient may not require any specific post-procedure care, as the analysis is non-invasive. However, it is essential for healthcare providers to review the generated report with the patient to discuss the findings and implications for their bone health. Depending on the results, further diagnostic testing or treatment options may be recommended. Continuous monitoring and follow-up assessments may also be necessary to evaluate the effectiveness of any prescribed interventions aimed at improving bone strength and reducing fracture risk.

Short Descr B1 STR & FX RSK I&R
Medium Descr BONE STRENGTH & FRACTURE RISK I&R
Long Descr Bone strength and fracture risk using finite element analysis of functional data and bone-mineral density utilizing data from a computed tomography scan; interpretation and report
Status Code Carriers Price the Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 0 - Physician Service 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 Items and Services Not Billable to the MAC
Berenson-Eggers TOS (BETOS) none
MUE 1
Date
Action
Notes
2023-01-01 Note First appearance of guideline change(s) in codebook.
2022-07-01 Note Revised guideline.
2020-01-01 Added First appearance in code book.
2020-01-01 Changed Code description changed.
2019-07-01 Added Code added.
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