CPT 70549: Magnetic Resonance Angiography of Neck Vessels With and Without Contrast - OpenPayer

Summary & Overview

CPT 70549: Magnetic Resonance Angiography of Neck Vessels With and Without Contrast

CPT code 70549 describes magnetic resonance angiography (MRA) of the neck vessels performed both without and with intravenous contrast. This combined non-contrast and contrast MRA is used to visualize arterial and venous anatomy, detect stenosis, dissection, aneurysm, or other vascular pathology, and guide further clinical management. The code is nationally relevant because MRA is a common, noninvasive vascular imaging modality that impacts diagnostic pathways across neurology, vascular surgery, and emergency care.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical indications and typical sites of service, alongside benchmarks and utilization context where available. The publication also summarizes payer coverage patterns and common billing modifiers associated with advanced imaging services, and highlights policy considerations that affect authorization and medical necessity determinations for vascular MRI. Clinical context explains when combined non-contrast and contrast studies are clinically warranted versus single-phase examinations. If specific payer policy details or utilization data are not included in the source input, those items are noted as not available. This resource is intended to support billing, coding, and administrative staff, as well as clinicians and policy analysts seeking a clear, national-level summary of CPT code 70549 and its role in vascular imaging.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare70549CPTMagnetic Resonance AngiographyNeck vesselsDiagnostic imagingMRIOutpatient imagingVascular imaging

Billing Code Overview

CPT code 70549 describes a magnetic resonance angiography (MRA) procedure of the vessels of the neck and surrounding areas performed first without contrast and then repeated with contrast. This service involves acquiring vascular imaging sequences both before and after intravenous contrast administration to evaluate arterial and venous structures in the neck and adjacent anatomical regions.

Service type: Diagnostic imaging, magnetic resonance angiography with and without contrast
Typical site of service: Outpatient imaging center or hospital outpatient department

Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.

Clinical & Coding Specifications

Clinical Context

A middle-aged or older adult presents to the outpatient imaging center or hospital radiology department with symptoms suggestive of cerebrovascular disease — commonly transient ischemic attack (TIA), stroke symptoms, pulsatile tinnitus, cervical bruit, or suspected carotid artery stenosis. The ordering provider (typically a neurologist, vascular surgeon, or primary care physician) requests vascular imaging of the neck to evaluate vessel patency, luminal narrowing, dissection, or aneurysm.

The patient is registered and screened for MRI contraindications (implants, pacemaker, claustrophobia, pregnancy, renal function for contrast administration). The MRI technologist performs a non-contrast magnetic resonance angiography of the neck vessels first to assess baseline flow and anatomy. Intravenous access is established and gadolinium-based contrast is administered per protocol; the technologist then acquires contrast-enhanced MR angiographic sequences to improve vessel delineation and assess stenosis, occlusion, or extraluminal pathology. The radiologist interprets both non-contrast and contrast-enhanced series and issues a single combined report documenting findings, measurements of stenosis when present, and comparison to prior studies when available.

Typical site of service: outpatient imaging center, hospital outpatient radiology department, or inpatient radiology for admitted patients.

Typical clinical workflow: referral and order review → MRI safety screening → non-contrast MRA sequences → IV contrast administration and dynamic contrast-enhanced MRA sequences → image reconstruction and post-processing → radiologist interpretation and report generation → results communicated to ordering provider.

Coding Specifications

Modifier	Description	When to Use

CPT 70030: Plain X‑ray of Eye for Foreign Body Evaluation

cpt-70559-intraoperative-brain-mri-with-and-without-contrast

CPT 70559: Intraoperative Brain MRI With and Without Contrast

cpt-70300-single-dental-radiograph

CPT 70300: Single Dental Radiograph to Evaluate Tooth and Surrounding Tissue

cpt-70220-paranasal-sinuses-xray-three-views

CPT 70220: X-ray Examination of Paranasal Sinuses, Minimum Three Views

cpt-70360-throat-neck-endoscopic-visualization-foreign-body

CPT 70360: Throat and Neck Endoscopic Visualization for Obstruction or Foreign Body

cpt-70558-intraoperative-contrast-mri-brain-during-open-cranial-surgery

CPT 70558: Intraoperative Contrast-Enhanced MRI of Brain, During Open Surgery

cpt-70134-internal-auditory-canal-radiography

CPT 70134: Radiography of Internal Auditory Canals, Diagnostic

70544

CPT 70544: MRI Orbit, Face, and Neck Without and With Contrast

cpt-70110-mandible-x-ray-4-or-more-views

CPT 70110: Mandible X-Ray, Four or More Views

cpt-70250-skull-xray-one-to-three-views

CPT 70250: Skull X‑ray, One to Three Views

Showing 1–10 of 66

Taxonomy Code	Specialty	Notes
207RC0000X	Radiologist	Diagnostic radiologists routinely perform interpretation of MRA studies
208VP0000X	Vascular Surgeon	Orders and interprets relevance for surgical planning for carotid disease
2084N0402X	Neurologist	Common ordering provider for cerebrovascular symptom evaluation
261QP2300X	Radiologic Technologist	Performs MRI acquisition and contrast administration
207L00000X	Diagnostic Radiology - Neuroradiology	Subspecialty reads for complex neurovascular cases

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I65.21`	Occlusion and stenosis of right carotid artery	Evaluated by neck MRA to quantify stenosis and plan management
`I65.22`	Occlusion and stenosis of left carotid artery	Same relevance for left-sided disease assessment
`G45.9`	Transient cerebral ischemic attack, unspecified	MRA used to identify cervical sources of emboli or stenosis after TIA
`I77.71`	Dissection of carotid artery	MRA sensitive for vessel wall abnormalities and dissection flap
`I67.1`	Cerebral aneurysm, nonruptured	Neck and cervical vessel imaging when aneurysm involves extracranial-intracranial junction
`R51`	Headache	Used when vascular causes of severe or new-onset headache are suspected
`H93.1`	Tinnitus, unspecified	Pulsatile tinnitus may prompt vascular imaging of neck vessels

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`70544`	Magnetic resonance imaging, head; without contrast material	Often performed before or instead of neck MRA when intracranial pathology is suspected
`70546`	Magnetic resonance angiography, intracranial, without and with contrast	Performed when evaluation extends into intracranial vasculature in same encounter
`70496`	Computed tomography angiography, head or neck, without contrast, with contrast, and with further imaging	Alternative vascular imaging modality when MRI contraindicated
`93880`	Duplex scan of extracranial arteries, bilateral study	Common noninvasive ultrasound performed before or after MRA for carotid stenosis assessment
`99214`	Office or other outpatient visit, established patient	Typical billing for the outpatient visit where imaging is ordered or results discussed

`26`	Professional component	When billing physician interpretation separate from technical facility charge
`TC`	Technical component	When billing only facility/technical portion of the study
`59`	Distinct procedural service	When another procedure performed at a separate session or anatomical site warrants distinct reporting
`76`	Repeat procedure by same physician	When the same exam is repeated due to technical failure or inadequate initial study
`77`	Repeat procedure by another physician	When another physician repeats the exam (note: `77` not in provided list)
`52`	Reduced services	When the study is partially reduced or limited in scope
`53`	Discontinued procedure	When the exam is started but terminated due to patient intolerance or emergency
`26`	Professional component	When radiologist bills interpretation only (duplicate entry removed by coder)
`GA`	Waiver of liability statement (not in list)	Data not available in the input
`QK`	Medical direction of two, three, or four technicians	When physician provides medical direction of multiple qualified personnel during complex MRI procedures

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