CPT 70548Radiology

Mr angiography neck w/dye

CPT code 70548 covers an MRI scan of the blood vessels in the neck using a special dye (contrast agent) to make the arteries and veins visible. This advanced imaging helps doctors detect blockages, aneurysms, or abnormalities in neck blood vessels.

Showing rates for

National Average

Base Medicare rate

$242.60

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

1.5

PE RVU (NF)

5.9

MP RVU

0.1

Total RVU

7.5

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

NCCI bundling edits

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Billing tips

Always verify contrast administration documentation before billing 70548 instead of 70547 (without contrast)
Impact: Using 70547 when contrast was given results in $32-45 underpayment; incorrect upcoding to 70548 triggers audits
Bill global code 70548 in physician-owned facilities; split with 26/TC modifiers only when services are divided between entities
Impact: Improper modifier use can reduce the $242.60 payment by 40-60% or cause complete denial for modifier errors
Document medical necessity clearly linking to ICD-10 codes for carotid stenosis, TIA, stroke evaluation, or vascular abnormalities
Impact: Vague or missing medical necessity documentation causes 35-40% of MRA denials; proper linkage ensures first-pass payment
Verify patient GFR/renal function before contrast administration and document in medical record
Impact: Missing GFR documentation triggers quality audits and potential MIPS penalties; adverse events create liability exposure
Do not bundle 70548 with 70549 (neck MRA without then with contrast); bill only the 'with and without' code when both are performed
Impact: Unbundling 70548 and 70547 triggers NCCI edits resulting in denial of one code and potential fraud investigation
Ensure radiologist interpretation is completed and signed within institutional timeframe (typically 24-48 hours) before claim submission
Impact: Billing before interpretation completion violates Medicare guidelines and may require refunds if audited

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 70548 in 2025?

The 2025 Medicare national average reimbursement for CPT 70548 is $242.60 for both facility and non-facility settings. This rate is based on 7.5 total RVUs multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary by geographic locality and payer contract.

What is the difference between CPT 70547 and 70548?

CPT 70547 is MR angiography of the neck without contrast material, while CPT 70548 includes intravenous contrast administration. Code 70548 should only be billed when contrast is actually administered and documented. The codes cannot be billed together for the same encounter.

Can CPT 70548 be billed with brain MRA codes on the same day?

Yes, CPT 70548 (neck MRA) can be billed with brain MRA codes (70544-70546) on the same day when both areas are medically necessary and separately documented. Modifier 59 may be required to override NCCI edits and demonstrate distinct procedural services of separate anatomical regions.

What RVU value is assigned to CPT 70548 for 2025?

CPT 70548 has a total RVU of 7.5 for 2025, consisting of 1.5 work RVUs, 5.9 practice expense RVUs (both facility and non-facility), and 0.1 malpractice RVUs. These values are from the CMS Medicare Physician Fee Schedule RVU25A released December 23, 2024.

What documentation is required to bill CPT 70548?

Required documentation includes a physician order with clinical indication, formal radiology report with radiologist signature, documentation of contrast type and dosage administered, pre-procedure renal function screening (GFR), contrast allergy screening, and medical necessity supporting the vascular imaging. Missing any element increases denial risk.

When should modifier 26 be used with CPT 70548?

Modifier 26 should be appended to CPT 70548 when billing only the professional component (physician interpretation) separately from the technical component. This occurs when the radiologist interprets images acquired at a different facility or when hospital and physician bill separately under split billing arrangements.

What are common medical necessity reasons for CPT 70548?

Common medical necessity indications include evaluation of carotid artery stenosis, transient ischemic attack (TIA) workup, stroke evaluation, suspected carotid or vertebral artery dissection, pre-surgical vascular mapping, pulsatile neck mass evaluation, and follow-up of known cervical vascular abnormalities. ICD-10 codes must support the clinical indication.