MRI Neck With and Without Contrast CPT Code Guide

The CPT code for an MRI of the neck with and without contrast is 70543. This code covers a magnetic resonance imaging study of the neck (including the orbits, face, and neck soft tissues) performed first without contrast and then again after intravenous contrast administration. For an MRI of the neck without contrast only, use 70544; for an MRI of the neck with contrast only, use 70549. The code 70547 is sometimes listed for neck MRI with and without contrast in certain payer systems, but 70543 is the standard code for the combined study.

Selecting the correct CPT code depends on whether contrast was administered and whether the study was performed with or without contrast. The American Medical Association (AMA) maintains these codes, and they are used across Medicare and commercial payers. Below is a detailed breakdown of the codes, when to use each, and billing considerations.

CPT Codes for MRI Neck

The CPT codes for MRI of the neck are part of the Diagnostic Radiology section. The primary codes are:

• 70543 – MRI neck (including orbits, face, and/or neck) with and without contrast material
• 70544 – MRI neck (including orbits, face, and/or neck) without contrast material
• 70549 – MRI neck (including orbits, face, and/or neck) with contrast material only

Some sources also list 70547 as an alternative for MRI neck with and without contrast, but this code is not universally recognized. The Mallinckrodt Institute of Radiology at Washington University lists 70543 for "Orbits, Face or Neck w/ and w/o contrast" in their MRI CPT code reference. Their guide confirms 70543 as the appropriate code for the combined study.

When to Use Each Code

The choice of code depends on the contrast protocol ordered by the referring physician and documented in the radiology report. The following table summarizes the codes and their descriptions:

It is important to note that if both non-contrast and contrast-enhanced sequences are performed, you must bill 70543, not 70544 plus 70549. The combined code includes both components. Billing separately would be incorrect and may lead to claim denial.

Billing and Documentation Requirements

Accurate billing for MRI neck requires clear documentation of the contrast protocol. The radiologist's report should state whether contrast was administered and whether both pre- and post-contrast images were obtained. Medicare and other payers may audit these claims, and insufficient documentation can result in denials.

For Medicare, the Local Coverage Determination (LCD) for MRI and CT scans of the head and neck provides guidance on medical necessity. The CMS article MRI and CT Scans of the Head and Neck (A57215) outlines documentation guidelines and covered indications. Providers should review the LCD for their jurisdiction to ensure the study meets coverage criteria.

When billing for the professional component only (interpretation), append modifier -26 to the CPT code. For the technical component only (equipment, technologist), append modifier -TC. If a single provider bills for both components (global service), no modifier is needed. This is consistent with general radiology billing practices, as described in resources like the Pabau guide for CPT 72141, which explains modifier usage for spine MRI.

Common Mistakes and How to Avoid Them

One common error is using 70544 (without contrast) when contrast was actually administered. This can happen if the order form is unclear or if the technologist administers contrast but the billing staff only sees the original order. Always verify the final radiology report before coding.

Another mistake is billing 70543 when only a non-contrast study was performed. This is considered upcoding and can trigger audits. Conversely, billing 70544 when both sequences were done is undercoding and results in lost revenue.

To avoid these errors, establish a workflow where the radiology report is reviewed by coding staff before claim submission. Many practices use electronic health record (EHR) systems that automatically capture contrast administration from the imaging modality, reducing manual errors.

Related MRI CPT Codes for Head and Neck

For reference, other MRI codes in the head and neck region include:

• 70551 – MRI brain without contrast
• 70552 – MRI brain with contrast
• 70553 – MRI brain with and without contrast
• 70540 – MRI orbit, face, and/or neck without contrast (older code, now replaced by 70544)
• 70542 – MRI orbit, face, and/or neck with contrast (older code, now replaced by 70549)

Note that 70540 and 70542 were deleted and replaced by 70544 and 70549 in 2011. Some older references may still list the deleted codes, but current billing should use the new codes. The 247 Medical Billing Services guide provides a comprehensive list of MRI CPT codes, including these neck codes.

Frequently Asked Questions

What is the difference between 70543 and 70547?

70543 is the standard CPT code for MRI neck with and without contrast. 70547 is sometimes listed in payer-specific fee schedules or older references, but it is not a current AMA CPT code for this service. Always verify with your payer's current fee schedule.

Can I bill 70544 and 70549 together?

No. If both non-contrast and contrast-enhanced images are obtained during the same session, you must bill 70543. Billing 70544 and 70549 separately would be considered unbundling and is not allowed.

Does Medicare cover MRI neck with and without contrast?

Medicare covers MRI neck when medically necessary and when the study meets the criteria in the local coverage determination. The CMS article A57215 provides documentation guidelines. Always check your MAC's LCD for specific indications.

For further details on MRI CPT codes, refer to the Mallinckrodt Institute of Radiology and Lexington Diagnostic Center code lists.