Summary & Overview
HCPCS C8932: Magnetic Resonance Angiography, Spinal Canal Without Contrast
HCPCS Level II code C8932 represents magnetic resonance angiography (MRA) without contrast focused on the spinal canal and its contents. This non-contrast imaging procedure is used to evaluate vascular anatomy and related structures within the spinal canal, supporting diagnosis and treatment planning for spinal vascular lesions, preoperative assessment, and follow-up of known pathology. Nationally, imaging codes such as C8932 are important for standardized reporting, utilization monitoring, and payer coverage determinations for advanced diagnostic services.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides readers with an overview of payer coverage considerations, common billing modifiers and service line placement, and clinical context for appropriate use. Readers will find benchmarks for site-of-service norms, common utilization patterns for spinal MRA without contrast, and notes on documentation elements that typically support medical necessity determinations.
The analysis emphasizes practical information: what the code denotes clinically, where the service is typically performed, and which payers commonly cover it. It also outlines what to expect in payer policies and billing practice: typical sites of service, related procedural grouping, and how this code fits into radiology service lines. Data not provided in the input are noted as unavailable.
Billing Code Overview
HCPCS Level II code C8932 describes magnetic resonance angiography without contrast of the spinal canal and its contents. The service is an imaging study using MRI technology to visualize vascular structures and related anatomy within the spinal canal without administration of intravenous contrast.
Service Type: Diagnostic imaging — magnetic resonance angiography (MRA) without contrast
Typical Site of Service: Hospital outpatient imaging center or freestanding radiology/imaging facility
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Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with progressive lower extremity weakness, neurogenic claudication, and chronic lumbar back pain is referred for imaging to evaluate spinal canal anatomy and vascular structures without intravenous contrast due to a history of severe contrast allergy and chronic kidney disease. The ordering physician (neurosurgeon or spine specialist) requests a magnetic resonance angiography without contrast focused on the spinal canal and its contents to assess for spinal dural arteriovenous fistula, vascular malformation, or preoperative vascular mapping prior to decompression or endovascular planning. The patient arrives for an outpatient imaging appointment at an ambulatory imaging center or hospital radiology department. Standard safety screening is completed for MRI contraindications (implanted devices, pacemakers, metallic fragments). The MRI technologist reviews the order which specifies C8932 (magnetic resonance angiography without contrast, spinal canal and contents), obtains informed consent for the imaging procedure, positions the patient supine, and applies spine coils. Sequences tailored for non-contrast MRA (time-of-flight and phase contrast techniques) are performed with multiplanar imaging of the cervical, thoracic, or lumbar spine as ordered. A radiologist interprets the study, documents vessel anatomy, flow-related signal abnormalities, compressive lesions, and any findings suggestive of vascular malformation. The imaging report is routed to the referring provider; the imaging facility charges for the technical component and, if applicable, the interpreting radiologist bills the professional component. Common payors for authorization and claims review include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare.
Coding Specifications
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