CPT 72128Radiology

Ct chest spine w/o dye

CPT code 72128 covers a CT scan of the thoracic spine (mid-back) performed without contrast dye. This imaging study creates detailed cross-sectional pictures of the vertebrae, discs, and surrounding tissues in the chest area of the spine.

Showing rates for

National Average

Base Medicare rate

$127.77

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

PE RVU (NF)

2.9

MP RVU

0.05

Total RVU

3.95

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

NCCI bundling edits

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Billing tips

Always verify whether contrast was administered before coding - 72128 is WITHOUT contrast only; if any contrast given, use 72129 (with contrast) or 72130 (without and with contrast)
Impact: Incorrect contrast coding causes 15-25% of denials for this code family and may result in payment delays of 30-60 days
Bill the global code (72128) only when your facility owns both the equipment and employs the interpreting physician; split billing with 26/TC modifiers when components are separate
Impact: Improper component billing can result in overpayment recoupment of $40-90 per study during audits
Document the specific anatomical region (T1-T12) in the ordering physician's request and radiologist's report to differentiate from cervical (72125-72127) or lumbar (72131-72133) spine studies
Impact: Prevents anatomical mismatching denials which account for 8-12% of spine CT claim rejections
Ensure medical necessity is clearly documented with specific ICD-10 codes such as thoracic pain (M54.6), compression fracture (S22.0-), or spinal stenosis (M48.0-) rather than generic back pain codes
Impact: Strong medical necessity documentation reduces denial rate from 18% to under 5% for this code
For facility billing, confirm the CT scanner meets technical requirements for diagnostic quality thoracic spine imaging (minimum 16-slice scanner recommended) to avoid quality-based denials
Impact: Equipment adequacy documentation prevents technical denials and supports the full $127.77 facility rate
When billing same-day with other spine region CTs, append modifier 59 to the secondary procedure and ensure separate documentation justifies medical necessity for multiple regions

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 72128 in 2025?

The 2025 Medicare national average reimbursement for CPT 72128 is $127.77 for both facility and non-facility settings. This is based on a total RVU of 3.95 (1.0 work RVU + 2.9 PE RVU + 0.05 MP RVU) multiplied by the 2025 conversion factor of 32.3465.

What is the difference between CPT codes 72128, 72129, and 72130?

CPT 72128 is a CT of the thoracic spine without contrast material, 72129 is with contrast material, and 72130 is without contrast followed by with contrast (often called without and with contrast). The key difference is whether intravenous contrast dye is administered. You must select the code that accurately reflects the contrast protocol actually performed.

Can you bill CPT 72128 with an E/M code on the same day?

Yes, you can bill an E/M service with 72128 on the same day if the E/M represents a separately identifiable service with distinct documentation. The radiologist's interpretation (72128) is separate from a clinical evaluation by another provider. If the same physician performs both, modifier 25 may be needed on the E/M code with clear documentation of the separate service.

Does CPT 72128 require prior authorization from Medicare?

Traditional Medicare does not universally require prior authorization for 72128, but some Medicare Advantage plans do. Additionally, certain jurisdictions participate in the Advanced Imaging Prior Authorization programs. Always verify requirements with the specific payer. Many commercial insurers require prior authorization for all non-emergent CT scans including 72128.

What diagnosis codes support medical necessity for CPT 72128?

Common supporting ICD-10 codes include M54.6 (thoracic spine pain), S22.0- (thoracic vertebra fracture), M48.06 (spinal stenosis, thoracic), M49.86 (spondylopathy in diseases classified elsewhere, thoracic), C79.51 (secondary malignant neoplasm of bone), and M80.08 (osteoporosis with pathological fracture, thoracic). Always code to the highest specificity and ensure the diagnosis supports the medical necessity for advanced imaging.

How do you bill CPT 72128 when only the professional component is provided?

When billing only the professional component (physician interpretation), append modifier 26 to CPT 72128. This is common when a radiologist interprets a scan performed at a separate facility. The reimbursement will be reduced to reflect only the work RVU component, typically about 30-40% of the global fee. The facility bills the technical component separately using modifier TC.

What are the RVU values for CPT code 72128 in 2025?

CPT 72128 has the following 2025 RVU values: Work RVU 1.0, Practice Expense (PE) RVU 2.9 for both facility and non-facility settings, and Malpractice (MP) RVU 0.05, for a total RVU of 3.95. These values are from the CMS Medicare Physician Fee Schedule RVU25A released December 23, 2024.