## Definition
HCPCS code C8910 is a medical billing code that designates “Magnetic resonance imaging without contrast followed by with contrast, breast; bilateral” under the Level II Healthcare Common Procedure Coding System. It is employed for billing magnetic resonance imaging services that first involve scanning the breast tissue without the use of contrast material, followed by imaging with contrast enhancement. Typically, this code is used in facilities such as hospitals and outpatient centers to capture breast imaging procedures where contrast is administered after the initial scan.
The inclusion of bilateral in the description indicates that the procedure is performed on both breasts. The intent of the imaging is to obtain detailed views of breast tissue, allowing for comparison between the pre-contrast and post-contrast images. This procedure is often used to detect abnormalities, including but not limited to breast cancer or suspicious lesions.
## Clinical Context
The use of HCPCS code C8910 is most often indicated in clinical scenarios involving the diagnosis or staging of breast cancer or in patients at high risk for breast abnormalities. The bilateral nature of the imaging ensures comprehensive evaluation of both breasts, which is particularly useful in patients with a known genetic predisposition such as BRCA mutations or a history of malignancy.
The procedure involves two phases: an initial scanning phase without contrast, followed by the injection of a contrast agent (often gadolinium) to enhance vascular structures and improve the differentiation between normal and abnormal tissues. By sequentially acquiring data with and without contrast, clinicians can make more accurate assessments of tissue architecture and identify suspicious areas that may warrant further examination.
## Common Modifiers
Common modifiers utilized in conjunction with HCPCS code C8910 include Modifier 26 and Modifier TC. Modifier 26 is used to denote that only the professional component of the service, such as the reading and interpretation of the scan, is being billed. On the other hand, Modifier TC is applied when only the technical component—which refers to the imaging equipment, supplies, and technician services—is billed.
Modifiers GA and GZ may also be used when there is uncertainty regarding a service’s coverage. Modifier GA informs that a waiver of liability statement was obtained from the patient, while GZ indicates that it was not obtained, and the payer may deny the claim for lack of preauthorization.
## Documentation Requirements
When billing for C8910, it is essential to provide clear and thorough documentation detailing the clinical indication for this specialized imaging study. This should include patient history, presenting symptoms, and specific reasons for choosing a bilateral imaging approach. Additionally, medical necessity for both the pre-contrast and post-contrast phases must be explicitly outlined.
The report should describe the imaging sequences used, the type and amount of contrast agent administered, and whether any complications or reactions occurred due to the contrast material. Radiological findings must be clearly presented, with careful attention paid to any identified abnormalities, especially those warranting further diagnostic evaluation or biopsy.
## Common Denial Reasons
One common reason for denial of claims submitted using HCPCS code C8910 is the failure to sufficiently demonstrate medical necessity in the supporting documentation. If the need for both the pre-contrast and post-contrast phases is not explicitly justified, insurers may reject the claim. Another frequent cause of denial is lack of appropriate preauthorization, particularly with contrast-based imaging services.
In some cases, denials may be issued due to improper use of modifiers, such as failing to apply Modifier 26 when only the professional component is billed. Additionally, insurers may reject claims where similar imaging has recently been performed, suggesting duplication of services unless strong justification is provided for re-imaging.
## Special Considerations for Commercial Insurers
Many commercial insurers have specific preauthorization requirements that must be met before conducting a procedure billed under HCPCS code C8910. These requirements often involve obtaining detailed clinical notes and imaging history to approve the use of contrast media in the procedure. Failure to obtain such authorization may result in non-payment of the claim, even if the procedure has already been performed.
Commercial insurers may also require the healthcare provider to demonstrate that alternative, less expensive imaging modalities, such as mammography or ultrasound, were considered or used prior to ordering a magnetic resonance imaging test. Ensuring that the payer’s specific guidelines are adhered to is critical to avoiding unnecessary delays in payment or outright denial.
## Similar Codes
Other HCPCS codes related to breast imaging include C8908, which describes “Magnetic resonance imaging without contrast, breast; unilateral.” This code is used when the imaging is limited to one breast as opposed to both, presenting a narrower scope of investigation. For scenarios that necessitate imaging with contrast only, C8911 can be used, which describes “Magnetic resonance imaging with contrast, breast; bilateral.”
In the broader landscape of breast imaging, codes such as 77049 from the Current Procedure Terminology system are frequently employed for similar magnetic resonance imaging examinations, particularly in outpatient settings. Moreover, for non-MRI based imaging, codes like 77067, used for bilateral screening mammography, are often seen in practice, offering lower-cost diagnostic alternatives or initial evaluations before magnetic resonance imaging is considered.