CPT 70492Radiology

Ct sft tsue nck w/o & w/dye

CPT code 70492 covers a CT scan of the soft tissues in the neck performed twice: first without contrast dye, then with contrast dye injected to highlight blood vessels and tissues. This comprehensive imaging helps doctors identify tumors, infections, abscesses, or other abnormalities in the neck region.

Showing rates for

National Average

Base Medicare rate

$217.37

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

1.62

PE RVU (NF)

5.01

MP RVU

0.09

Total RVU

6.72

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Verify both non-contrast and post-contrast series were actually performed and documented before billing 70492
Impact: Billing 70492 when only one phase performed results in overpayment recovery and potential audit flags; downcode to 70490 (without contrast) or 70491 (with contrast only) to avoid $80-100 in overpayment
Document medical necessity for dual-phase imaging in the order and interpretation report
Impact: Payers increasingly deny 70492 in favor of single-phase studies without clear justification; proper documentation prevents 40-45% payment reduction from downcoding
Bill global code in facility settings where you own equipment and provide interpretation
Impact: Correct component billing maximizes reimbursement; improper 26/TC splits can result in payment delays or 60% revenue loss if wrong component claimed
Separate neck CT from chest or brain CTs with modifier 59 when anatomically distinct and medically necessary
Impact: Prevents NCCI bundling edits that would deny the additional study; maintains full $217.37 payment for each distinct anatomical region
Ensure contrast administration documentation includes type, dose, route, and physician supervision
Impact: Missing contrast documentation triggers downcoding to 70490 (non-contrast only) reducing payment by approximately $45-60
Review payer-specific prior authorization requirements before scheduling dual-phase neck CTs
Impact: Many commercial payers require pre-auth for contrast studies; missing authorization results in 100% denial ($217.37 write-off)

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Frequently asked questions

What is the difference between CPT 70490, 70491, and 70492?

70490 is CT neck without contrast ($172.94), 70491 is with contrast only ($196.65), and 70492 is both without and with contrast ($217.37). Code 70492 requires two separate acquisitions: initial non-contrast images followed by post-contrast imaging, providing the most comprehensive evaluation but requiring clear medical necessity documentation.

How much does Medicare pay for CPT 70492 in 2025?

Medicare pays $217.37 for CPT 70492 based on the 2025 national average non-facility rate. This amount is the same for both facility and non-facility settings. Actual payment may vary by geographic location based on local Medicare Administrative Contractor (MAC) pricing adjustments.

Can I bill 70490 and 70491 together instead of 70492?

No, this is considered unbundling and is incorrect coding. When both non-contrast and contrast phases are performed during the same session, you must bill 70492. Billing the component codes separately will result in denials, recoupment, and potential fraud investigation.

What diagnosis codes support medical necessity for 70492?

Common supporting ICD-10 codes include R22.1 (neck mass), C77.0 (lymph node metastasis neck), J39.0 (retropharyngeal abscess), C73 (thyroid malignancy), I77.0 (arteriovenous fistula), and R07.0 (neck pain). Documentation must link the specific diagnosis to the need for dual-phase imaging rather than single-phase study.

Do I need prior authorization for CPT 70492?

Prior authorization requirements vary by payer. Medicare typically does not require prior auth, but many Medicare Advantage and commercial plans do require it for contrast-enhanced CT studies. Always verify with the specific payer before scheduling. Missing authorization commonly results in complete denial.

What are the Work RVUs for CPT 70492?

CPT 70492 has 1.62 Work RVUs, 5.01 Practice Expense RVUs (both facility and non-facility), and 0.09 Malpractice RVUs, totaling 6.72 RVUs for 2025. This reflects the physician work of performing and interpreting both contrast phases of the examination.

When should I use modifier 26 with CPT 70492?

Use modifier 26 when billing only the professional component (interpretation) because you do not own the CT equipment. This applies when radiologists read studies performed at outside facilities. The modifier 26 payment is approximately $86.95 (professional component only), while the facility bills TC modifier for the remaining technical component.